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r/ScaleAIApps

I’m a factory worker. I couldn't afford cloud servers, so I used AI to build a 100% offline personal finance app.
▲ 10 r/ScaleAIApps+5 crossposts

I’m a factory worker. I couldn't afford cloud servers, so I used AI to build a 100% offline personal finance app.

Hi everyone! 👋

A while ago, financial stress and the sheer amount of mental clutter (tracking budgets, split-payments, loans) got overwhelming. I wanted a finance app, but every single tool on the market forced me to create an account, connect a bank, or upload sensitive data to cloud servers I don't control.

To make things harder: I don't come from a traditional software engineering background, and I couldn't afford expensive cloud backend infrastructure. So, I turned that limitation into my strongest advantage. Working shifts in a factory by day, and collaborating with AI tools (like GitHub Copilot) by night, I built Nexmy.

Nexmy is a 100% offline-first personal finance app for Android.

What makes it different:

Zero Cloud / Zero Accounts: Your data never leaves your phone. Everything is locally encrypted.

BNPL & Split-Payment Tracking: Perfect for managing installment services like Klarna and PayPal.

Smarty (Beta 1.0): A lightweight, on-device AI assistant that answers your financial questions locally without internet.

Simulators & Tools: Compound interest, mortgage amortization, and clean local PDF reports.

I built this out of pure necessity to regain my own peace of mind, and we just wrapped up our Product Hunt launch. Now, I want to share it with this community.

Nexmy is completely free with no ads. I would be genuinely honored if you tried it out and gave me your raw, honest feedback or feature ideas!

📲 Google Play Store: https://nexmy.app

Thanks for reading, and let's chat in the comments! 🚀

u/BlackShark92 — 1 day ago
▲ 23 r/ScaleAIApps+5 crossposts

Claude, GPT, Grok, Gemini, etc, are not magical. This is how they work

Claude, GPT, grok or Gemini are not magical.

They are statistical token predictors.

Scale unlocks intelligence.

This is how they work.

u/Euphoric_Musician822 — 6 days ago
▲ 12 r/ScaleAIApps+8 crossposts

Before you push your app to production, go through this checklist.

I see a lot of people spending weeks building an app with Cursor, Claude Code or Lovable, then deploying it and calling it "production".

If your production environment is basically your local machine with a domain name, you're asking for trouble.

Here's the checklist you should use before letting real users anywhere near your app.

  1. Separate dev, staging, and production environments.

  2. Never use your development database in production. Ever.

  3. Different environment variables for every environment.

  4. Never commit .env files to Git. Double check yours secrets.

  5. Enable automatic database backups before your first user signs up, not after.

  6. Test restoring a backup. A backup you can't restore is basically useless.

  7. Store uploaded files outside your server. Your server isn't permanent.

  8. Use HTTPS. Auto-route http to https.

  9. Add error tracking so you know when things breaks.

  10. Add basic monitoring for CPU, memory, disk, and database connections.

  11. Rate limit your API before bots discover it.

  12. Keep separate API keys for dev and production.

  13. Disable debug mode in production.

  14. Add a health check endpoint so you can quickly verify the app is alive and the deployment is actually responding.

  15. Try deploying from scratch once. If you can't reproduce your own deployment, neither can your future self.

One thing that saved me a lot of headaches was treating production like it's a completely different app. Different database. Different storage. Different secrets. Different config.

Makes debugging a lot less painful when you're not wondering if your local changes accidentally touched production.

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u/Euphoric_Musician822 — 11 days ago