Solo developer, Android apps since 2018
Small team.Solid apps.
I'm Cristian, an independent developer building Android apps that people actually keep using. Clean code and regular updates, without the overhead of a big team.
Latest app
Studown
Exam countdown timer
Track exam dates, build study streaks, and stay motivated with a simple countdown. No ads, no tracking, no account needed. Just you and your goals.
- Countdown to any exam date
- Study streak tracking
- Motivational daily reminders
- 100% offline and private
- Completely free, no ads
Also available
Scoreon
The racket sports score tracker
Track every point across tennis, padel, badminton, squash, and table tennis, with a distraction-free scoring UI and a Wear OS companion that syncs in real time.
- Tennis, padel, badminton, squash & table tennis
- Real-time score tracking, distraction-free
- Full Wear OS companion app with seamless sync
- Detailed match history with scores & winners
- One-time purchase, no subscription
How I build every app
No team of hundreds, just a few principles I hold to on every project I ship.
Quality first
App quality is always the top priority: crafted interfaces that make people smile, not just apps that ship.
Security updates
Active support for Android versions still receiving security patches, keeping your data safe at all times.
Releases & news
Follow @acristian007 on Instagram for the latest updates and new releases.
Open source review
Want to audit the code before launch? Reach out by email. Transparency is part of who I am.
Support
Frequently asked questions
Can't find what you're looking for? Reach out directly.
Contact usStudown and Scoreon don't require an account and store data on-device by default. Where any data is collected, it's covered in full in the Privacy Policy for that app.
Visit the Play Store page and download the app you want. No account or sign-up needed, most apps are ready to use in under a minute.
Core features are free. Some apps offer an optional one-time purchase for advanced features, and pricing is always listed on the app's Play Store page.
Yes. Get in touch by email and a code review can be arranged. Security-minded developers are always welcome to take a look.
Check out my apps
All available on the Google Play Store. Most are free to download.