I'm a solo developer, and I've been building Cognilumin for the past few months mostly late nights and weekends. It's now live, completely free, and I'd love some honest feedback from the Product Hunt community.

Cognilumin is a stateless AI infrastructure platform with three tools:

Illuminator paste any complex topic and get a structured explanation with mental models, analogies, and a key takeaway.

Topology Visualizer describe a system scenario and watch a live particle flow field map the state in real time.

CoreSight: AI consulting team that builds financial models, presentations, and benchmarks like McKinsey would, minus the 500K price tag.
I'd love to hear your feedback on CoreSight and also see your product with its super short description.

Hey everyone

I m building @work_streak, a platform focused on making hiring and skill verification more transparent, faster, and less frustrating for both companies and candidates.

Hello everyone
I'm a software engineer currently switching jobs, and the prep process has been frustrating. Editing my resume in one tool, asking ChatGPT for suggestions in another tab, never really knowing if my resume was landing the right signals for the roles I was targeting, and practicing answers only in my head with no idea whether they were actually comprehensive enough.
So I built a job prep workspace that puts resume editing, AI diagnosis, and mock interviews in one place.
Here's what's inside:
1. Resume editor
With Markdown support, live preview, and multiple resume management. You can import existing PDFs and it converts them to editable format.
2. AI resume diagnosis
It goes beyond generic advice. Upload your resume, specify your target role, company type, and experience level, and it gives you a match score, keyword coverage analysis, module-by-module rewrite suggestions, and dimension scoring across technical depth, project impact, fundamentals, presentation, and differentiators.
3. AI mock interviews
It actually use your resume to generate follow-up questions. It adapts based on your target role, interview round (first round basics vs. final round system design), and interview style. Supports voice input with real-time transcription so you can practice speaking, not just typing.
After each mock interview with detailed feedback on what you did well and where to improve.
The whole thing is free to use right now. I built it because I needed it myself the gap between "I updated my resume" and "I'm actually ready to interview" felt way too wide, and the existing tools either cost a fortune or only solved one piece of the puzzle.

It's at https://www.offer-ready.top if you want to take a look. Would love feedback from this community especially on what feels missing or what would make you actually use this during a job search.

I m building CogniFocus, a bootstrapped Android focus app.

The idea came from a simple problem: I could start a focus timer and still end up switching apps mid-session.

The timer kept running, but my focus was already gone.

So I built CogniFocus around a different loop: start a focus session, block distracting apps, get pulled back when you drift, and let a Goblin roast or praise you depending on how you focus.

Hey Product Hunt

Tomorrow morning I'm launching @FocusAI and honestly feeling that pre-launch mix of excitement and terror.

Quick context:

Hi everyone,

I wanted to introduce a small project I originally developed just for myself, because it was hard to find a free app to manage an entire collection of Pok mon cards and sealed products most of them are paid: myPokeVault, a free web app for managing your Pok mon collection.

The idea is simple: a digital vault where you can track your cards, ETBs, boosters, boxes, tins, bundles, and more. You can add items with a photo, set, condition, language, purchase price, current estimated value, and follow how your collection evolves over time.

I tried to make it pleasant to use, especially on mobile, because I wanted to manage my collection easily from my phone. The app can also be installed on your phone s home screen, so it behaves almost like a regular app and is super simple to use.

Hey Product Hunt!

I'm Roberto, the solo developer behind BetaSwap.

I've shipped 3 Android apps. All three got stuck at the same point: Google Play's closed testing requirement. You need 12+ real testers, active for 14+ days, with genuine Firebase Analytics data.

Every time I posted in groups looking for testers, I got installs. Not sessions. Firebase saw through it immediately.

One thing I ve realized while building a startup:

Raising investment is much harder when you don t already have a strong network around you.

A lot of founders are building amazing things quietly, but struggle to get visibility, connections, or investor attention early on.

That s one of the reasons I genuinely enjoy meeting other founders and hearing what people are building.

Most businesses hire someone just to reply to messages all day.

WhatsApp. Facebook. Instagram. Telegram. Website.

Same questions. Same follow-ups. Every single day.