Web & mobile app
RozliczKorki
A free, open-source app for tutors on the web, iOS and Android that tracks lessons, payments and earnings.
rozliczkorki.pl
- Type
- Web & mobile app
- Role
- Creator · solo developer
- When
- 2026
- Stack
- Next.js
- Expo
- tRPC
- Better Auth
- Drizzle
- Links
- Live siteRepository
About
RozliczKorki replaces the tutor’s paper notebook. After a lesson you tap “done” and “paid”, and at the end of the month you know how much you earned and who still owes you. Every feature is free and sign-up does not ask for a card.
- Web app at rozliczkorki.pl
- iOS app on the App Store
- Android app on Google Play
Key features
- Recurring lessons with done and paid status, cash or transfer
- Partial payments carried over to the next lessons
- Rate history, language-school payouts and holidays
- Stats: effective hourly rate, collection rate and a forecast
- Push reminders 15 minutes before a lesson
- iOS widgets and Live Activities
- A calendar feed you can subscribe to
- Sign-in with Google, Apple or a passkey
Tech stack
- Turborepo monorepo shared by the web and mobile apps
- Next.js 16 on the web, Expo and React Native on phones
- tRPC API, Better Auth, Drizzle and PostgreSQL on Neon
- CI that ships Google Play internal releases and iOS TestFlight builds
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