I built and launched a SaaS app using only my Android phone — no laptop, eve

Actually Done is live now: documents, bills, subscriptions, appointments, and passwords all in one place, so nothing slips through the cracks. Stripe billing, an encrypted password vault, OCR document scanning, the whole stack — built entirely from a phone screen.

A few honest lessons from the process:

The hard part wasn't "not knowing how to code." It was learning to describe problems precisely enough that the AI agent fixed the actual bug instead of patching around it.

I made a rule early on: never accept "fixed" without proof — a screenshot, a test result, something real. Self-reported fixes lied to me more than once before I set that rule.

Batching bug fixes into single messages instead of one-at-a-time saved enormous time and confusion.

QA on a single device (my own phone) got me most of the way there, but I'm still working through cross-browser and cross-device testing post-launch.

Launching on Product Hunt this week. If anyone else here has built primarily from a phone — no desktop at all — I'd genuinely like to compare notes on what broke and what surprised you.