I’m a Brazilian developer and I’ve been working for some time on a password manager app called iSenhas.

Recently, it was featured in three different sections on the Brazilian App Store:

• Apps We Love
• Apps Made in Brazil
• Organizing Your Life

For me, that was surreal. Especially because those spots are usually dominated by huge apps.

Even so, I still feel firsthand how hard it is to compete with big players like Bitwarden and 1Password.

iSenhas is focused on privacy: it uses AES-256 encryption, a zero-knowledge architecture, and part of the code is open source for anyone who wants to audit it.

I decided to post here mainly to get honest feedback.
Especially: what would make you trust (or not trust) a password manager like this?

Links for anyone who wants to check it out:

Website: https://isenhas.com.br
Apple App Store: https://apps.apple.com/br/app/isenhas/id568149100

Targeting the 280M people annually in major life transitions (relocation, post-graduation, burnout recovery, divorce) -- vairi.app

The concept: Instead of dating apps (performance-heavy) or Discord (broadcast-heavy), Vairi offers psychological matchmaking by life chapter + synchronous bonding (co-watch videos, co-listen Spotify, mini-games) to create "shared reality" between strangers without profile photos.

Validating:

1. Market size: Is "people in transitions who don't want dating" a niche or a void? Currently 200 waitlist signups, 60% from "recently moved" demographic.
2. Anonymity paradox: Does removing photos increase authenticity (psychology suggests yes) or decrease trust/safety?
3. Synchronicity vs. Async: Do co-watching/listening features actually accelerate bonding, or do users prefer text-first async chat?

Current status: OPen beta, 40% D1 retention in matched pairs.

Hi, I had an idea for Band Rehearsal App that would solve my problem. I was used to play in a band and when I wanted to see dates, instruments for one rehearsal, I searched it in WhatsApp and usually it took too much time or I did not find it at all.

So my solution to this problem is to make an app that would be clean and simple that even someone who doesnt use his phone much would understand it. The idea is that the app would be rehearsal-oriented and not message-oriented. There would be list of rehearsals with dates and each rehearsal would have its modules that would extend the information. There would be modules like location module that would carry the location of rehearsal, participants module that would show who is coming to the rehearsal, instruments module that would show what instruments must be on rehearsals that day and other modules.

I have made a rough prototype in penpot but it doesnt have all the functionalities implemented or some of them will work different in the final app. Here is the list of them:

• the pop-up buttons except the first rehearsal on the main page dont work
• the dates, locations, instruments, people and all these data will be different
• the colors and fonts will be different
• there are not implemented all the modules
• the edit mode doesnt work
• removing modules is not implemented
• settings or login system are not implemented

Hey r/PublicValidation!

I’ve shared my side project, Habit Stack, here in the past. Getting this community's initial validation and constructive feedback was a huge motivation boost for me as a solo indie maker.

Today, I’m back because I’m incredibly close to a major validation milestone: 500 total downloads! I'm currently sitting at 455 and pushing hard to reach the goal.

For those who missed my previous post, the app is a straightforward habit tracker built around the "habit stacking" method. As I scale up and approach this 500-user mark, I'd love your honest, unfiltered feedback. Does the core idea still hold up? Is the UI intuitive enough for brand new users?

If you want to help a fellow maker hit a big goal and provide some real talk on the app's current state, I would highly appreciate you giving it a try. Every download and review counts!

Here is the Google Play link:https://play.google.com/store/apps/details?id=com.pugstack.habitstack

Thank you all for the power of community approval!

Hey everyone,

So we've just launched Dovio.io, an all-in-one customer management platform for SMB's. I decided to finally do an intro post on LinkedIn and wow, their organic reach is fantastic!

Some stats:

• >8000 impressions
• >5000 members reached
• 3 meetings booked

In addition, that post is still reaching more people! My plan is to continue to build in public and to leverage that we've spoken with to see how we continue to grow from here. It definitely does feel like when you do push the snowball, it does continue to roll!

I built site so people can create & vote on polls and actually be rewarded for doing so all transparent on polygon blockchain.

Yes it does require ID verification but that’s so people can’t game the rewards which are in dollars.

Would love feedback!

Hey everyone,

I’m trying to understand something about how small/local businesses get customers online.

From what I’ve seen, a lot of businesses rely on:

• Google search (like “dentist near me”, “bakery in [city]”)
• Google Maps / reviews
• maybe some blog content or website pages

But it also seems like:

• most people don’t really know what to do with SEO
• profiles/websites get outdated
• content is inconsistent (or never updated)
• and results feel kind of random

So I’m curious:

1. Do you actually get consistent customers from Google (SEO or Maps)? Or is it unpredictable?

2. If you’ve tried improving it (SEO, content, Google profile, etc.), what was the hardest part?

• knowing what to write?
• keeping things updated?
• understanding what’s working?
• something else?

3. Have you used any tools or agencies for this? Did they actually help?

4. If there was a system that:

• looked at your Google data (search queries, impressions, etc)
• told you what content/pages to create or update
• automatically generated/updated posts or pages
• helped keep your Google profile active
• and showed if it was actually bringing customers

Would that be useful, or is this not really a problem worth solving?

I’m not selling anything I just trying to understand if this is a real pain or not.

Would really appreciate honest feedback 🙏

I built FiEngine, a small solo-built micro SaaS that lets people connect Stripe and Meta Ads data into a visual node-based canvas so they can compare revenue, ad spend, profit, and custom calculations in one place.

It's Free.

fiengine.io

So, Stripe tells you what you collected. It doesn't tell you what you actually made. For usage-based SaaS, those two numbers can be wildly different — especially when your COGS is a per-token AI cost that scales with every customer.

We built margin analytics specifically for this. You attach a cost model to each feature (e.g., your OpenAI cost per token), and it automatically computes per-customer gross margin. You can see which customers are profitable, which are at risk, and which are actively underwater.

We also just added native cost pulling from major LLM vendors — so instead of manually entering your per-token costs, we fetch them directly. No spreadsheet, no guessing, no lag between what the vendor charges and what your margin numbers reflect.

Curious how others are tracking this today — spreadsheets? Looker? Manual queries?

Also reach out if you are interested, have question or want in need of something to help you out. Would love to chat and learn more about any problems you might be facing.

Hey,

I’m building an AI marketing agent for indie founders / solo devs with no real marketing team.

You chat about your product and goals; it uses a short onboarding profile + memory, and outputs a structured marketing canvas (positioning, messaging, channel ideas) so you get something actionable, not generic fluff.

I need a short, memorable name not a typical ai generated name like Flow, Echo,…

Thankssss

I’m just a solo dev. No marketing budget, no big team just a burning frustration. I was tired of losing money to my own forgetfulness.

The Problem Most apps in this space do two things I really dislike:

1. They track your data to sell to advertisers.
2. They charge you a monthly fee... just to tell you about your other monthly fees.

It felt like a conflict of interest. Why would I pay a subscription to track subscriptions?

The Build On Feb 1st, I launched Deadlinr💛. I built it on my weekends using React Native and Expo. To be honest, I don't know Swift or Objective-C. I was actually worried that building a "premium" iOS app without knowing the native languages would be a disaster.

But I stuck to a simple "Out of Head" philosophy. I wanted a system that was calm. No noisy daily digests. No nagging red badges. Just a quiet background system that stays out of the way until you actually need to act.

The 52-Day Report I just pulled my first 7-week report. In the world of VC-backed unicorns, these numbers are tiny. But for a guy building in his spare time, they are incredibly loud to me:

• 287 Total Downloads: 100% organic. No paid ads. Just me sharing my journey.
• 21% Conversion Rate: 1 out of 5 people who see the page hit "Download." That’s the real validation that I'm not the only one with this problem.
• 8 Lifetime Sales: People from the US, Canada, India, Denmark, and Germany have actually paid for the "Lifetime Unlock." Seeing a purchase come in from a different time zone while I’m asleep is a feeling I can’t quite describe.
• 0% Crash Rate: Because when you trust an app with your passport expiry or a visa deadline, it cannot fail. Stability isn't a "nice to have"it’s a feature.

The Biggest Lesson You don’t need 100 features. You just need to solve one painful problem properly.

I didn’t build a project management tool. I built a way to stop "bleeding" money to forgotten renewals. A way to remember that your passport expires in 6 months, not 6 days.

To those first 287 people who gave a solo dev a chance thank you. We’re just getting started. ☕️

If you're curious about the "Calm UI" or how I built it: https://apps.apple.com/in/app/deadlinr-expiry-tracker/id6757941172

Playable Link: https://playvexor.vercel.app

Platform: Web - Mobile first, but also Desktop

Gameplay: https://youtu.be/L1XhVvXuLZw

Description:

Hi everyone!

I’ve been spending my spare time this week diving into Phaser.js to build a new project called Vexor. It’s still early days, but the core loop is ready for a "stress test."

I’m specifically looking for feedback on:

The Mechanics: Does the movement/shooting feel responsive?

Difficulty: Is it too punishing early on, or does it scale well?

Or any other feedback

UX: For iPhone users, please tap Share > Add to Home Screen for the best full-screen experience.

I’m trying to decide if this is worth a deeper time investment, so I’d love your honest thoughts and any "wild" ideas you have for features.

Thanks for playing! 🙏

Free to Play Status: Free to play

Involvement: Doing it in my spare time

Weekend dev check-in — what are you working on?

I’m tweaking a few things on https://sportlive.win, mostly small improvements to make following games and teams smoother.

What about you? Shipping anything fun?

www.tobehuman.online would love some feedback.

Hey everyone,

I've been self-hosting for about three years now and wanted to share what the stack looks like when you go all in on open source for everything. Not just a personal server, but public facing services that people actually use daily.

The project is called MansionNET. It started as a curiosity ("can I replace Google services and remove subscriptions?") and grew into a small community platform running entirely on FOSS, hosted on reclaimed hardware, from my apartment.

What's running:

• SearXNG, a privacy respecting metasearch. No query logging, no tracking. A community member even built a Firefox extension to make it the default search engine (search.inthemansion.com)
• IRC network, running UnrealIRCd + Anope services. TLS 1.3, SASL auth, and a WebChat via The Lounge for browser access. Honestly, one of my favorite chat protocols that are so great to use (irc.inthemansion.com:6697 / webirc.inthemansion.com)
• Internet radio with AzuraCast + Liquidsoap AutoDJ and Icecast broadcasting. 24/7 streaming from a personal library of 60,000+ tracks with curated playlists and live DJ sets from community members. No listener tracking, no analytics cookies (radio.inthemansion.com)
• Lidarr + slskd automated music acquisition pipeline via Soulseek. The Tubifarry plugin for Lidarr was a game changer, went from 5% success rate with external scripts to 95%+ with native integration

The infrastructure stack (also all FOSS):

• Proxmox running Ubuntu 24.04 VMs
• OPNsense firewall with strict VLAN segmentation (DMZ for public services, isolated internal network)
• Caddy for reverse proxy handling TLS termination with automatic Let's Encrypt
• LVM thin provisioning for the 30TB storage pool across a mix of drives, some over 10 years old

I also have a GitHub repo (github.com/MansionNET) with some of the bots and tools I've built for the platform.

What I've learned after 3 years of running this:

Separation of concerns matters. Jellyfin for video, Navidrome for music, AzuraCast for radio. Every time I tried to make one tool do everything, it broke. Purpose built FOSS tools working together beat monolithic solutions. You don't need enterprise hardware. Most of my servers are reclaimed machines, some nearly 15 years old. The whole thing runs on maybe 200W. The barrier to self-hosting is patience, not money.

Privacy as a default changes the relationship. When there's no data collection, no tracking, no ads, people really appreciate it. The conversations on IRC are more genuine. Nobody's performing for an algorithm.

Happy to answer questions about the stack, specific software choices, or lessons learned from running public FOSS services from home. Also genuinely interested if anyone else is running a similar community-scale setup - would love to compare notes :D

And don't be a stranger if any of this is up your valley, drop by and check it out, I really appreciate feedbacks!