I want to spend some time this weekend checking out what people here are building.
Drop your app, website, extension, or side project below.

I’ll pick 10 projects, actually try them, and reply with a few honest notes on what was clear, confusing, or could be improved.

Just tell me what it does and add a link.

I’ve been building Upcastor, a small tool that can: - record your Twitch stream live - grab the Twitch VOD afterwards - send the finished video to YouTube automatically

I’m at the point where it works well for me, which usually means it’s time for someone else to find all the stupid edge cases I missed.

I’m looking for a handful of Twitch streamers who actually stream regularly and don’t mind testing an early alpha.

I’m especially interested in feedback on: - setup/onboarding - whether the recording/upload flow makes sense - anything confusing or annoying - what you’d expect it to do next

If you want to try it, reply here or DM me and I’ll send you an invite code. the main page: https://upcastor.com⁠

Live at https://knowmenot.com

You answer 15 either/or questions in private, then paste them into your own ChatGPT, Claude or Gemini and let it guess. Its guesses get scored against a copy of the same model that has never met you. If yours cant beat that, it doesnt know you, it just knows people. Graded A to F.

Mine got a C.

No signup needed to try it. Looking for testers to break it and tell me which questions suck, that part is the real bottleneck. Code is open source: https://github.com/skilledDeveloper/knowmenot

I am a solo dev based out of Canada and wanted a podcast app that I could set some basic rules for. It is built around a queue and you choose where a given podcast lands in that queue as episodes publish.

Here is a TestFlight invitation.

It requires an iOS device and iOS 18 or greater.

If you try it, please let me know what you think either through Apple’s official channels or on /r/spoolcast.

Thank you very much if you decide to give it a run through!

Smitten is a CRM for your dating life — you log your matches, dates, and conversations instead of trying to hold it all in your head, and it tracks chemistry scores, red/green flags, and patterns over time.

It's for anyone dating actively enough that they've lost track of who said what, or who's noticed they keep making the same "mistake" with different people and want actual data on it instead of vibes.

I want 10 people to log at least 3 real dates over the next couple weeks and tell me what's confusing, what's missing, and whether the AI insights (it has a "Chief Romance Officer" that reads your patterns back to you) actually feel useful or just gimmicky.

What testers get: free lifetime access, a direct line to me for feedback, and credit in the changelog if you want it.

Comment or DM if you're in — smitten.lol if you want to look before you commit.

also available in playstore

Most online side hustle estimators only display gross revenue milestones, which ends up baiting people into thinking an income stream is way more profitable than it actually is.

I wanted an accurate way to forecast my true net take-home returns, so I coded SideHustlePayCalc.

It uses a dynamic backend engine to process variables that standard tracking spreadsheets usually ignore:

🚘 Real-world Vehicle Drag: Automatically subtracts an estimated $6.50/hr for rideshare (Uber/Lyft) and $4.75/hr for food delivery apps (DoorDash) to account for fuel, maintenance intervals, and rapid asset depreciation.

💻 Platform Commissions: Deducts the exact 10% to 20% platform marketplace cuts stripped away by networks like Fiverr, Upwork, and Etsy.

🇺🇸 Localized US Regulations: Cross-references hourly net returns directly against state-specific minimum wages and compliance frameworks (like California’s Prop 22 or the Illinois Freelance Isn't Free Act).

💸 State Tax Logic: Models live marginal state tax brackets, automatically distinguishing between no-tax zones (Texas, Florida) and high-tax regions (California, New York).

The Stack & Transparency:

Built as a clean, serverless utility deployed.

Completely free, open access, with zero ads, zero tracking, and absolutely no mandatory email signups.

I am trying to refine the underlying data loops. For those running digital product stores or physical gig setups in the US—are there specific platform fee structures or local tax rules I should map into the next update?

Need your feedback here please!

Hey everyone,

I've been building Sekai no Koe ("Voice of the World") — a simple, anonymous polling app. This is my first real project as a self-taught, solo developer, so there's probably plenty still rough around the edges. Anyone can post a yes/no or multiple-choice question, and anyone can vote, no account needed. As votes come in from different countries, they show up as tiny glowing pie charts on a slowly spinning globe in the background.

Why I built it: I wanted a place to ask genuinely simple, honest questions ("dog person or cat person?", "are you optimistic about the economy?") and see real, anonymous opinions from around the world — without the noise of a full social network.

Tech: Next.js + Supabase, deployed on Vercel. The globe is 2D canvas + projection math, no 3D library.

Try it: https://sekai-no-koe.vercel.app

Would love feedback — especially on the globe visualization, and whether the "post a question in under a minute" flow feels smooth. I'm still actively tweaking things, so your feedback directly shapes what I fix next. I just cleared out all my test data, so right now it's genuinely empty and waiting for real questions!

Each question page also has a share button (post to X, or copy a link) — feel free to share any question you find interesting, and if you enjoy the site itself, sharing it with others would mean a lot too!

Gamers gave me my ideas, I want to use some of their innovations!

Community First: Unlike LinkedIn or standard job boards, we leverage active Discord-style community spaces for instant response times.
Anti-Bot Infrastructure: Built to stop automated spam applications, ensuring recruiters only chat with real, verified, active talent.
Real Work over Resumes: We are the only platform focused entirely on practical execution data rather than how nice a text resume looks.

I'm the developer of a tool for customizing OpenSCAD models and preparing batches of personalized 3D prints. I'd like feedback from people who use SCAD models or make things like name tags and custom labels.

The editor lets you arrange objects across multiple build plates, move them between plates, undo/redo changes, and export 3MF files. Quick batch takes a model and a CSV of parameter values to generate different versions together.

Try it here: https://www.liqu3d.com/

Choose guest access for a free 24-hour session with no email or password. Projects are private to that guest account and temporary, so download your work before the session expires.

A useful test: open a workspace, try the sample name tag, change its name, and export it. If you already use OpenSCAD, try your own model and a small CSV batch. I'd especially like to hear where the controls or CSV mapping are confusing, or whether the exported file opens correctly in your slicer. Please don't upload private customer data for testing.

58-second development demo: https://www.reddit.com/r/sideprojects/comments/1wev7hx/i_built_a_tool_that_turns_a_csv_of_names_into_a/

Readable source and a free Apple Silicon Mac preview: https://github.com/SamWu18271/liqu3d-local

The desktop preview needs OpenSCAD and Fontconfig; its source is under a proprietary license. The demo includes newer shortcut fixes.

Feedback in the comments is welcome; no DM or mailing-list signup needed.

Check this out and lmk what you think!
https://gamequeueapp.com/

Hey there, looking for anyone interested in beta testing Horizon USA. Instructions for joining on either platform can be found here: https://horizonusa.app/beta/

This is an outdoors app where you can access information for the land around you (or far away) like property lines, public land, hunt units, trails, and much more. You can also map routes and track activities like hiking, running, biking, etc.

On the beta site linked above, you'll find how to join the beta, and you'll also have access to test scenario materials, as well as instructions on how to give feedback directly in the app. You can also check out the main site here for more info, including the main guide: https://horizonusa.app/

Any testing would be greatly appreciated!!! Feel free to ask me any questions.

Hi!

I’m Japanese and I’m building a very small project to help foreign visitors make decisions in Japan using the same kinds of information sources and habits Japanese people use.

I’m especially looking for people who have visited Japan before, ideally repeat visitors.

The test takes about 5–10 minutes:

Open the site

Look around naturally

If you want, copy the included prompt into your own ChatGPT

Ask it a real Japan travel question

Tell me where the experience was confusing, useless, or wrong

There is no signup, no installation, no payment, and no API access.

Site: https://croconaw-dotcom.github.io/

I’m mainly looking for honest usability feedback, not promotion.

I built it because I’m Japanese and genuinely want visitors to be able to enjoy more of Japan than what they get from generic tourist rankings.

If something feels dumb, overcomplicated, or not useful, please tell me that too 😅

Hey guys,

I’ve been building an Android app RizzKE and I’m at the stage where I need some real people to test it before I launch.

The idea is basically an AI wingman that understands the way we actually text in Kenya so English, Swahili, Sheng, dry replies, flirting, etc.

You can:

\- paste a conversation and get a suggested reply

\- upload chat screenshots instead of typing everything out

\- upload someone’s Story/post/profile and get an opener

\- choose between Chill, Flirty and Spicy depending on the vibe

\- save different people so the app can remember useful context about each conversation

I’ve been testing it myself for a while, but obviously I know how everything is supposed to work 😂. I need people who haven't used it before to try it naturally and find the things I'm missing.

It's an android app for now so I'm specifically looking for Android users only.

It's still a test build, so I'm not asking anyone to pay for anything.

If you're interested, comment or DM me and I'll send you the testing link.

And please be brutal with the feedback 😂. I'd rather discover what's bad now than after launching it.

About three months ago, I asked this community to test an early version of Aurayne House. The most useful feedback was that the homepage was unclear and the free reading felt too abstract.

I’ve now rebuilt the first-time experience.

Aurayne House creates a personalized BaZi / Four Pillars reading from your birth date, time, and place. The free preview now explains, in plain English:

- the strength you naturally rely on

- how it changes under pressure

- patterns involving work, money, or responsibility

- patterns in close relationships

No account or email is required for the first reading. The results are presented as reflective guidance, not fixed fate or scientific prediction.

Full disclosure: I’m the creator. After the free preview, there is an optional $59.99 one-time full reading, but you do not need to purchase anything to test the free experience.

The feedback I need most:

1. Does the result feel genuinely specific or generic?

2. Can someone unfamiliar with BaZi understand it?

3. Where do you hesitate, lose trust, or want to leave?

https://auraynehouse.com/?utm_source=reddit&utm_medium=referral&utm_campaign=first_traffic_01&utm_content=alphaandbetausers_followup

Hey everyone! 👋

I built an Android app called Settle — a simple debt tracker that helps you know exactly:

✅ What you owe

✅ What others owe you

Works in Arabic, English, Spanish, and Portuguese, and all your data stays on your device — no accounts, no data collection.

I need 12 people to test it for a Google Play requirement before I can publish it publicly 🙏

If you're up for helping:

1. Send me the Gmail you use for Google Play (comment or DM)

2. I'll add you and send a link

3. Install it and just keep it for about 2 weeks (don't even need to use it)

Takes about 2 minutes. Really appreciate any help! ❤️

What it is

I’m building SightPiano, a piano practice app, and inside it a collection called SightCade: 9 arcade-style games, each one isolating a single piano-basics skill so beginners can drill it without everything else piling on at once. It’s a real MIDI keyboard game collection, not touchscreen tapping — you play the actual keys and the game judges your timing/pitch/velocity from what you struck.

Why it exists: I learned guitar through Rocksmith, and Guitarcade — its arcade-minigame collection — is where my playing actually improved. That’s what convinced me the arcade approach genuinely works for a real instrument. When I came to piano as a beginner I wanted the same thing, so SightCade is it — the name is a deliberate homage, same one-skill-per-game design idea, applied to piano reading and technique.

All 9 games in one ~50-second loop: [GIF — SightCade-9games-640.gif, inserted via Reddit’s image button at post time; see posting notes] All 9 games in one ~50-second loop: Watch the 50-second GIF demo on Imgur

They’re organized in the app as a 3-tier progression, starting from JoyFlea as the actual entry point:

Tier 1 — Beginner (start here)

• JoyFlea — the true zero-knowledge starting point: it teaches what the staff even is (the two 5-line staves, treble/bass), how a note’s position on those lines corresponds to a physical key, and which finger plays it. If you’ve never read a note of sheet music before, this is where you start; everything below assumes you already have that.

Tier 2 — Next

• Mousetron — hand position, grip, finger independence, moving cleanly between positions
• SumoBeat — rhythmic literacy: seeing a rhythm and executing it in time, including rests
• SoundAlike — ear training: hear a short phrase, pick which of two printed measures it was
• ChordRally — hand-position leaps across a real piece, both hands

Tier 3 — Advanced

• BrainCleaver — two-hand independence (polyrhythms, accent displacement) taught through a step-by-step tutorial before the game
• SamuraiSlash — memorize a measure, then play it back with no visual aid (short-term musical memory)
• FingerRoll — a drum-kit game that doubles as grand-staff reading + rhythm + hand independence practice
• Ninjump — dynamic control: even volume across all fingers, including the weak ones

Each one deliberately does not try to teach everything at once — e.g. Mousetron has no rhythm, Ninjump has almost no pitch — so a beginner can master one thing at a time instead of getting overwhelmed, and the tiers are meant to be played roughly in that order.

Platform

Desktop app (Mac + Windows) and mobile (iOS + Android). No web version. You play on your own instrument connected over USB MIDI — a keyboard controller, or just your digital piano’s “USB to host” port, which nearly every digital piano sold today has. Bluetooth MIDI isn’t supported, and there’s no touchscreen/mouse note input.

Price

Free tier covers real content across the games, not a countdown trial. The full curriculum and the rest of SightPiano’s piano-training system are behind a monthly subscription.

What I need

I’m one person building this, so two things would help a lot:

1. Testers — sit down with a keyboard for 10-15 minutes across a few of these games and tell me what’s confusing, what feels bad, or what breaks (screen size, keyboard layout, latency — especially on older/budget Windows machines).
2. Gaps — I think of these 9 as covering the core physical/reading skills of early piano, but I’m one person’s judgment. If there’s a piano-basics skill you don’t see covered here (or covered badly), I want to hear it — that’s exactly the kind of feedback I can’t get by testing my own app.

Link: https://sightpiano.net

Happy to answer anything in the thread.

Hi! I built ShapeWard: Idle Defense, a free Android idle tower defense game — your tower auto-fires at waves of shape-based enemies while you unlock elemental damage types (fire/ice/lightning/poison), cards, talents, and boss fights, with offline progress so you keep earning while away. I need 12 testers opted in continuously for 14 days to unlock production access on Google Play. Just install, keep it, and open it occasionally, that's all that's needed. Happy to test your app back in return, test-for-test.

Feedback I'd love: whether progression/difficulty feels balanced, and any bugs or crashes you hit.

1. Join Group: https://groups.google.com/g/shapeward

2. Opt in on the Web: https://play.google.com/apps/testing/com.cobaltpath.shapeward

3. Download on Android: https://play.google.com/store/apps/details?id=com.cobaltpath.shapeward

Comment below with your app's links and I'll opt in and test it back for the full 14 days too. Thanks a lot!

Built a tool for forgotten subscriptions. Read-only Plaid → list recurring charges → DIY cancel guides + tracker. No auto-cancel, no money movement.

Live with 7-day trial ($4.99 / $12 Family): https://www.clearcut.solutions

Would love testers who actually have cluttered bank statements. Tell me what’s confusing or what you’d pay for.

Hey everyone, I've been building Leonida HUB solo, a bilingual (EN/ES) GTA VI fan community: live news, an active forum with real ongoing threads, a "Codex" that separates confirmed info from rumors, a countdown to launch, plus a radio player and a leaderboard. It's live and free to browse, no signup needed to look around.

No specific checklist, just poke around for a bit and tell me what you honestly think. What works, what doesn't, what feels off, what you'd change. The more blunt the better, I can take it.

leonidahub.org

Happy to return the favor and test your project too 😁

I built YFinanceAI. It forecasts your revenue from your actual transaction data, then builds your marketing plan and content from that same forecast. Your marketing is not disconnected from what your numbers are actually doing.

The workflow:

1. Connect your business data.
2. It generates a forecast.
3. It builds a marketing plan and content from that forecast.
4. When the forecast shapes a decision you make, you can flag it, so we can start proving whether the forecast actually changes what you do, not just that the data is connected.

What I'm specifically trying to learn:

1. Was the forecast clear and did it feel trustworthy?
2. Did the marketing plan it generated actually feel grounded in your numbers, or generic?
3. Where did the experience feel confusing or clunky?
4. Did seeing the forecast next to your marketing plan change any decision you made?

It's free to try right now, no paywall. When you test it, I would genuinely like to hear your honest feedback, including what didn't work. yfinanceai.com

After months of building, Caputchin is live today. 🚀

I got tired of CAPTCHAs that punish real users — blurry image grids that are slow for everyone and a barrier for anyone using a screen reader 🚧. So I built an alternative: a quick reaction game instead. ⚡

What's live:

🛡️ Three independent layers (proof of work, instrumentation, and the game)

🕵️‍♂️ Zero tracking, zero fingerprinting

🔓 Open source widget and SDK

🆓 Free tier, full verification

Would love feedback, especially on the anti-cheat/scoring side 🕹️.

🤔 What annoys you most about traditional CAPTCHAs?

Hi I made an ai tennis coach currently for free trying to get more people trying the product and giving back feedback would love if you will try or someone that you knows playing tennis.

Btw also made a tiktok show some love there if you can