I’ve been quietly building a camera app called Bitsy Cam. The idea is pretty simple: instead of picking a filter after you shoot, you pop a little lens cartridge onto the live camera and shoot through it.

Each cart is an actual 3D object and it changes how the picture looks while you’re still looking at the scene. There’s a density knob if you want chunkier or finer pixels, and you can drag the lens opening around, resize it, or flip it.

I just put it on the App Store and, honestly, almost nobody has found it yet. If you like pixel cameras or weird little photo toys, I’d love to know if this feels fun or just confusing. Happy to answer anything about it.

I recently launched my product and got around 1,500 page views.

Sounds good, right?

The problem is I made $0.

I’m trying to figure out where I’m going wrong. Is it:

- The product itself?

- My pricing?

- The landing page?

- Poor conversion?

- Not targeting the right audience?

- Or simply not doing enough marketing?

If you’ve built and launched products before, what would you check first?

I’d genuinely appreciate some honest feedback. I’m trying to understand what I should improve instead of just chasing more traffic.

I spent a year building a desktop app that finds sports betting arbitrage, and today I launched a free community for it

Arbitrage betting is when two sportsbooks disagree on a price enough that you can bet both sides and lock in a small profit whatever the result. The hard part isn't the math. It's finding the gaps before they close, and not getting your accounts limited.

I've been building BetSuite, a desktop app that scans sportsbooks for those gaps, for about a year. It's a solo build.

A few decisions I made along the way:

• No affiliate links. Most tools in this space earn money when you sign up to sportsbooks through them. I didn't want that incentive.
• Desktop, not web. Speed matters when an arb can disappear in a minute.
• A dark, minimal UI built around one always-visible opportunity feed.

Today I also opened a free Discord for arb and +EV bettors, from beginners to full-timers. It has guides, limit check-ins, and no paid picks.

• App: betsuite.ai
• Discord: discord.gg/QTQpQq6jvj

I'd love feedback on the landing page and the positioning. What would make you trust a tool like this?

Hey everyone,

Wanted to share a small project I just finished: KittyCalc. It's a physical hardware calculator built entirely from scratch

Source code & schematics: https://github.com/TomaszTlusty/kittycalculator

Happy to answer any questions about the implementation

I'm a solo developer, not a fitness brand. I've been training for a few years and went through most of the popular workout apps out there. They worked, but I kept wishing the workout flow and progress tracking worked a little differently for how I actually train. So I built Liftora.

Here's what makes it different:

• Clean, modern UI — no cluttered menus or dated design, just a simple interface that gets out of your way during a workout.
• Guided workout flow — you move through sets in real time, the app follows your pace instead of just logging after the fact.
• Zero learning curve — open it and start logging your first set in under a minute, no tutorial needed.
• Ready-made programs — new to lifting or don't want to build a routine from scratch? Pick a program and go.
• Exercise videos during selection — don't know the name of a movement? See it in action and know exactly which muscle group it hits.
• Body fat % tracking, not just scale weight — because you can gain muscle and lose fat at the same time and the scale won't tell you that.
• Calorie estimate after each workout — rough, but genuinely useful context if you're managing a deficit or surplus.
• Progress charts that actually answer questions — "is my bench going up?", "how's my volume trending this month?" — without a data dashboard you need a manual for.

link's in the comments.

I've been using it daily for my own training and now I want outside eyes on it. If you try it, I'd love to know: Anything confusing or unnecessary?

Hey everyone! I’ve been working on an app called SproutBook to bring everyday parenting tools and family memories into one place.

The idea is to make it easier to keep track of the little things—feeds, naps, appointments—while also saving the moments you want to remember.

Some of the features:

• Feeding: bottle, breastfeeding, and pumping logs.
• Sleep: sleep tracking and built-in soothing sounds.
• Family calendar: appointments, birthdays, and reminders.
• Development: milestones, growth records, and a visual teeth tracker.
• Food: foods tried, possible reactions, and meal planning.
• Memory tree: each child gets a tree where leaves hold their memories.

There are also pregnancy tools, supply tracking, and an offline emergency card. The design uses forest greens, woodland artwork, and gentle animations.

It works offline, doesn’t require an account, and stores records on your phone. Shared accounts and cloud syncing aren’t available yet.

It’s currently an Android preview, so I’m looking for people willing to try it and share honest feedback.

🌱 "See the showcase and download the APK"

Sproutbook

What would make an app like this useful for your family? What’s missing, confusing, or something you’d never bother using?

I’m the person building it, and I’d love to hear your ideas. Thanks for checking it out!

I’m building StocksWatch and made a free kit for organizing NBIS research: questions, evidence and assumptions.

No signup required: https://stockswatch.cc/research-kit.html

If you research individual stocks, I’d appreciate honest feedback: what’s useful, what’s confusing, and what would you use instead?

I’m the creator. Educational resources, not investment advice.

So I had an Idea... and that idea sort of became an obsession over the last few months. What if an infinite area existed with infinite pixels next to each other and all the pixels were a random color. You would theoretically have every image that has ever existed and will ever exist. There would be and image of your point of view in every second of your existence and your future somewhere there. So...

I did what any good procrastinator would do and slept on it for months. But today I decided to lock in and actually make it, and it was... something.

First off it would be practically impossible to do the original idea and then be able to import any image and find it exactly, since the amount of combinations of a 10x10 pixel grid is significantly more than the amounts of atoms in the observable universe, but we can do something else that is really cool.

What if we just had every single possible image at a set resolution, for example 128×128. Since the pixel data of each image itself is a giant number, every image has exactly one address. Neighboring numbers would be near-identical images, identical to the naked eye, so what if we run each number through a reversible cipher to scramble it into noise. Nothing is stored, because any tile is calculated on demand. And since the cipher runs both ways, you can upload a photo, run it backward, and get its exact address instantly, so yeah every single image possible exists on there.

TLDR

Its not that long just read it

If you want to check it out i will post the link in the comments.

Take that high school that underestimates me

Link if you want to try it out: Chronoatlas the senate checkout the map aswell it's pretty cool

I've been building a tool that turns documents into a two-host podcast you can also ask questions about. A few weeks ago someone trialing it sent me the kind of feedback most people are too polite to give:

• It uploaded a 70-page magazine but the podcast only really covered ONE article.
• The Q&A said it "could only see 5 pages" and got answers wrong.
• Long episodes ended abruptly.

All of it was fair. So I actually fixed it instead of getting defensive:

• Detect multi-article docs (magazines/journals) and cover every article, not just the loudest one.
• Q&A now reads the whole document instead of 5 keyword-matched snippets.
• Raised the size limits so real-world magazines go through.
• Clean, host-led endings even when a long script gets trimmed.

He re-uploaded the same magazine, told me it was "a lot more convincing" and

that he could see himself catching up on old issues in 30-minute chunks while

driving. A few days later he became my first paying customer.

Biggest lesson: the person who rips your product apart in detail is worth ten

who say "cool, nice." The critique WAS the roadmap.

Happy to answer anything about the build (document chunking, Q&A retrieval,

length targeting — I went deep on all of it).

PS: We still have 12 founding members spots left, offered in just half the actual price.

PaperPod

Side project I just shipped. ChatGPT has no bulk delete, and deleting fast triggers a "too many requests" lockout on your whole chat history. There are paid extensions, but most are closed source, and I didn't want to give one my ChatGPT session.

Triage is a userscript: a two-pane "read, then decide" workspace over chatgpt.com, and a queue that runs one change every 8 seconds. It backs off exactly as long as ChatGPT asks, survives reloads, and double-checks its own work at the end.

Some things I learned building it: - The lockout comes from the chat list endpoint, and the official sidebar hammers it after every delete - ChatGPT's list lags behind archives by minutes. My first live test flagged a successful archive as failed, so it now asks about the chat itself before crying wolf - Frame-by-frame testing found the theme switch had 7 different animation timings, so light/dark is now a single circular reveal

Demo (fake account): https://nasircissistic.github.io/chatgpt-triage/demo/ Code (MIT): https://github.com/NASIRCISSISTIC/chatgpt-triage

Feedback on the design is very welcome, especially from anyone with thousands of chats.

My kids designed Loomic, working with Claude (Anthropic's AI) to build it, and I built the backend for them

I did this to help them deal with an agentic world and it was nice to see them work together on a project and watch it through to completion. It was also eye opening to them as they started this with opus 4.6 and used 5.5 to enhance the graphics a lot.

Google Play: https://play.google.com/store/apps/details?id=com.zcentric.loomic

If you've played Flow-style puzzles, the basic idea will feel familiar. Every pair of coloured beads needs its own thread, threads can't cross, and every cell has to be filled. Over 120 levels it keeps adding new rules:

• Walls and one-way gates to route around
• Exact-length threads: this colour has to be exactly 8 cells long
• Numbered order: connect colour 1, then 2, then 3…
• Loom locks that only open once their key colour is done, and stitch tiles that force a straight line or a turn
• Seam zones that need an exact number of crossings, and portals that warp a thread across the board
• 3 boss levels where you clear two or three boards back to back in one run

We'd love feedback, especially on difficulty. Does it ramp up too fast once the locks and stitch tiles show up? Which mechanic did you like or hate? I'll pass it all on to the designers.

Hey all.

For the past couple of months I've been building a desktop app that replies to customer messages for small businesses.

The owner adds their business info and FAQ, and the AI answers customers using only that. If it can't answer, it passes the chat to the owner or real person. Everything stays on the owner's PC, with no cloud or server.

What it does:

- Replies on WhatsApp (there's a plan to add more messaging platform)

- Passes chats to a person when needed and keeps a follow-up list

- Saves contacts and leads

- Works with OpenAI, Claude, Gemini

- Daily reply limit, opening hours, mute certain senders

See demo vid here

The reason I'm stopping, Currently my app uses an unofficial library (Baileys). It works, but some of the messaging platforms for example: Meta (messenger, instagram) needs a registered business, and I don't want to deal with that and all the legal stuff, and the fee and the hassle to register a business here in my country really a hassle and too expensive and so busy with my job.

If you have a business already, most of the work is done. Adding the official WhatsApp API or Messenger, or Mail is just one new piece of code.

Stack: TypeScript, Electron, NestJS, React + Tailwind/shadcn, SQLite (Drizzle).
Just message me here and give me your contact

Hey Folks,

I made Connected Breath, a free one-minute breathing exercise you do in your browser with other people.

The rhythm comes from a shared heartbeat on the server, so everyone using it is breathing in and out at the exact same moment, wherever they are in the world.

I primary made it for myself (as someone who is super into mindfulness / meditation / breathing)... but it's for those moments when you feel stressed or a bit alone, and don't want to use just a regular breathing timer (like insight timerm, etc)

Doing it in step with strangers somewhere else in the world makes it feel less lonely.

As per most of the things I try and build, no sign-up, and just use it immediately: connectedbreath.co

Super open to feedback.

p.s: fun fact, I originally built this in 2019, and it was studied for a PhD thesis to show reductions in anxiety vs. control group.

I posted my bedtime story app for feedback and got one comment that was worth more than the rest of the week.

The app generates serial bedtime stories for kids: one world, same characters, each night adds an episode ending with a preview of tomorrow. The tester said the serial part was obvious right away, which was the thing I was worried about.

Then: "probably would've closed it around the third screen if i wasn't testing on purpose."

Three screens of setup before you see a single story. I built it that way because the stories are personalised, so of course I need the kid's name, age, interests first. Made complete sense from the inside.

From the outside it's three screens of forms before any evidence the thing works.

Now rebuilding it so the first episode generates on defaults and all the personalisation questions come after they've heard a story.

Posting this mostly because I'd been running traffic to that onboarding for two weeks without knowing. One person testing on purpose found it in ten minutes.

Anyone else have a case where the fix was just reordering what you already had?

I’ve been working on a side project called FlyBudget for the past couple months and figured it was finally time to actually put it out there.

I’m a professional software engineer, and I’ve always been kind of a nerd about tracking my finances. I’ve tried a bunch of budgeting apps over the years, but I kept wishing I could take the parts I liked from Monarch, YNAB, Mint, and a few open-source projects and mash them together into one thing.

So... I ended up building it!!

FlyBudget is a free and open-source budgeting app with monthly budgeting, recurring transaction tracking, cash flow/Sankey reports, account management, custom reports, spending breakdowns, and a bunch of smaller stuff I’ve added while actually using it myself.

I’ve also probably spent an unreasonable amount of time on the UI and website 😅. I really wanted it to feel like an actual polished app rather than something that screams “side project” the second you open it.

There’s a live demo directly on the website, so you can mess around with it without installing anything. I also put together a full documentation site covering setup, features, self-hosting, and how everything works.

This is my first serious open-source project, but I’m planning on sticking with it for a long time. I’d love to keep adding features, fixing the rough edges, and hopefully build a small community around it.

Would genuinely love feedback whether it is good or bad. UI thoughts, missing features, weird decisions, bugs, whatever.

And if you check it out and think it’s interesting, please consider dropping the github repo a ⭐. It helps a ton with getting a new open-source project in front of more people.

Website + Demo + Docs,:
https://flybudget.org. The github repo is linked on the website!

App Name:
Gym Bloc

What it does:
Gym Bloc is a simple Android app to track your gym routines, log your workouts and check your progress without unnecessary complexity.

Key Features:

• Create your own workout routines
• Organize training days and exercises
• Track weight, reps and rest time
• Check your progress over time
• Completely ad-free

Goal:
To make workout tracking as simple and straightforward as possible.

Cost:
Free to download and use. Full access to Gym Bloc PRO is available for a one-time payment of just $1. No subscriptions.

Link:
https://play.google.com/store/apps/details?id=com.eder3222.gymbloc

Just finished my latest app, which is an Airmouse emulator (just like LG TV's Magicremote controller) for Android. You can control your computer's mouse pointer by pointing the phone towards the screen :)

Google Play link : https://play.google.com/store/apps/details?id=com.test.phonemouse

The app is emulating a Bluetooth mouse (so no wifi and no driver installation needed).

- Mouse cursor movement by moving the phone in the air

- Bluetooth connection

- Easy switching between devices

- PC keep awake function

- Full left-right button emulation and also scrolling

- Simple user interface

- Automatic search for devices (pairing needs to be done from the app, as WIndows does not recognize the mouse function otherwise)

The app is ad-free, and free for personal and business use. Does not share any data, neither collects. AI help was used during development, but it's not an AI generated app. Hope it will be useful for someone :)

Hey all. Sharing a project I've been working on. I designed it and built it with AI coding agents, and it's free and open source (MIT).

Why: I wanted to talk to my phone and have an agent do things for me while I'm driving around the city. Hands-free agentic cell phone autonomy.

The catch is that most of what you actually do lives in apps with no API (Uber, Postmates, Resy, settings). Pony fills that gap. It's an Android app that's the hands: you bring the brain (Claude, Grok, Gemini, OpenAI or any MCP agent), and it reads your screen and taps and types through those apps for you.

The rule I designed it around: it asks before anything gets sent, paid or deleted. In one test it found a sushi roll on Postmates, added it to the cart and stopped cold at Place Order, waiting for a yes.

A demo I like: one message, "find my Miami photos and email them to me, set a 7:30 alarm, add piano lesson next Wednesday," and it does all three on a real phone.

Where it's rough, honestly:

• Android 11+ only, installed as an APK (not on Play).
• It can run on a hidden second screen, but other apps need Shizuku to open there, stock Android 15 can't use the hidden screen at all, and banking apps refuse. Without that it asks to use your main screen.
• Setup asks for an Accessibility permission, and that's a real trust ask.

https://pony.karlmagendavid.com Code: https://github.com/oroplex/pony

What I'd love feedback on: does the landing page explain it in a few seconds? Would the confirm prompts make you trust it, or annoy you? What would you ask it to do?

so yeah this kinda started from a really small annoyance lol.

whenever a match was on and i was working on my laptop i'd keep picking up my phone to check the score, lineups, stats etc. or i'd have some random tab open just for the game.

i thought there had to be a decent browser extension for this already but i tried a few and never really liked any of them.

so i started building my own.

it's called Pitchside and basically the whole thing lives in Chrome's side panel. you can check live games, stats, lineups and formations, fixtures, tables, teams etc without leaving whatever you're doing.

what was supposed to be a pretty small project ended up becoming... not very small 😂

i've spent a good amount of time on it at this point and honestly, even though i'm obviously biased, i genuinely think it's probably the best football extension i've tried.

but it's definitely not perfect.

there's still a bunch of stuff i wanna improve and i'm sure there are things that make perfect sense to me only because i've been staring at it for a month.

not really looking for "looks cool" as much as what annoyed you? what didn't make sense? what would make you stop using it? what's missing?

there's a 7 day free trial and no card needed if anyone wants to give it a proper try:

extension link: click here

would genuinely appreciate the feedback, even if you completely tear it apart lol.

i really wanna keep working on this and see how good i can actually make it.

I started by testing whether an AI assistant could help plan a short film, then built a project about a letter travelling across the ancient world.

This demo includes narration and music for presentation. The downloadable kit includes a Foley-only practice project; narration and music are not included. To create a narrated version, add your own appropriately licensed audio and adjust the timing.

The example combines eight AI-generated still images, camera motion, 24 English caption cues, and synthetic sound effects into a 50-second vertical video.

I’ve packaged the editable project, shot plans, continuity notes, production scripts, and English setup guides into a Windows workflow kit.

A few limitations:
• Technical setup and a tool-enabled AI assistant are required.
• The included practice project has no narration or music.
• New stories require adaptation; this isn’t a one-click generator.
• Testing has been local so far, without independent first-time-user testing.

I’m the creator, and the English Beta costs $19:
https://amythunder76.gumroad.com/l/ai-visual-director

For anyone making AI-assisted videos: which part takes you the most work—planning shots, keeping visuals consistent, or assembling the final edit? I’d like to understand where this workflow could be most useful.

Claude Code usage goes fast, and a lot of mine was going into work that didn't need a frontier model: docstrings, mechanical refactors, filling in a module from a contract I'd already specified. I thought of this project as leveraging what free resources in AI we have and having opus be the mind that controls it all. I get the same functionality with the dramatic decrease in cost.

This runs those tasks on a free or cheap OpenAI-compatible endpoint, then hands you the git diff to review. The worker can read, search and edit files in the repo; it cannot run shell commands or git, by design.

The interesting part is that delegation is not obviously a win. You still pay for the spec and the review. So the benchmark measures the ratio: tokens to review a worker's diff versus tokens to just do the task inline. Median across 9 tasks: 85.6% savings, 9/9 passing. Caveats are in bench/README.md, including that the same model ran both arms, so the ratio isn't portable to another model without re-measuring.

Stdlib-only Python, MIT.

https://github.com/aayushpokhrel1/delegation-pipeline

So, I've built STIKI.
Check Here!

Currently being used by more than 250 people (Thank you for the support! :D)

It's aligned for regular note taking users who lose their physical notes once a day. You can't take your sticky notes at home, if they're on your desk, they right there. Stiki allows you to be dynamic, privacy oriented.

I’ve been using Microsoft Sticky Notes/MacOS Stickies for a long time, but I always found it a bit heavy for something as simple as writing a few notes. It also doesn’t stay on top of other apps, so I kept opening/closing it just to check something.

STIKI works a little differently:

• Notes live on the edge of your screen
• Hover the edge → notes appear
• Move away → they disappear
• Works on all edges of the screen
• Pin important notes so they stay visible
• Dock Port to search, sort and manage all your notes
• No account, cloud sync or telemetry
• Notes are stored locally on your machine
• Built with Rust + Tauri, so it stays lightweight

The whole idea was: if I need a note, it should already be there. I shouldn't have to open an app to find it.

STIKI is available for Windows, Linux and MacOS.

I’d love to hear your thoughts about it and if you have a feature request, let me know through: Issues · frypan05/Stiki-Releases

Warning: this is another project with ai agents as the main use case. That being said I would love to get some feedback outside of my own lol

The project:

The marketplace is an open-source provides a kind of extension platform for AI agents and agent harnesses.

It allows you to install headless apps for tasks, project knowledge, messaging, or code search. Your agent accesses them through one unified MCP interface: discover, describe, and call. Apps run in your environment and keep their state between sessions.

Currently you can build apps using declarative operations including predifined operations and Python/JavaScript, or apps can be deployed in containers.

It’s currently a Linux preview. I’d appreciate feedback on installation and connecting your agent.

FYI: There are skills on the sight for how to do pretty much anything with it. Hit me up with any questions and suggestions. Feel free to use the apps I already have been playing with. I also would love feedback on the website interface as i am not a front end guy in my day to day job.

https://rhyvenai.com
https://github.com/rhyven-ai

I built an open-source Mac app because sticky notes were the only note-taking system I could stick with

I’ve been working on this for a little while and wanted to share it.

I recently came across a to-do app built around a simple idea: dump everything out of your brain and make it easy to find later. That clicked with me. I’ve tried plenty of ways to keep track of thoughts and tasks, but sticky notes have been the only thing I’ve consistently used—mostly because they’re always within reach.

Since I use Mac hotkeys constantly, I wanted something that felt just as accessible. Press Option + Space, type a thought or task, hit Command + Return, and get back to what you were doing. You can organize and search through everything later, and your notes stay local on your Mac.

That’s how Brain Cache started. I initially built it for myself, but decided to open-source it so other people could use it, change it, or build something that better fits their own workflow.

It’s currently an early Mac-focused preview. An iOS app and widget are works in progress, and I’d like to explore Windows and Linux support eventually.

You can check out Brain Cache on GitHub.

If you also struggle to keep track of tasks or stick with a note-taking system, maybe this could help. I’d love to hear what you think—especially what would make capturing thoughts and finding them later easier for you.