01
Free on Android
Travel Budget Expense Tracker
Track trip expenses, manage your vacation budget and keep your spending simple and organized.
OfflinePrivateTravel ready
Get on Google Play Independent studio · Android apps
Reliable financial tools, without the confusion.
Drumbox Studio develops simple, reliable mobile apps focused on tax calculations and personal finance management, made for individuals by professionals.
The three live apps
Free · 01–0302
Free on Android
Greek Tax & Salary Calculator
Calculate Greek income tax, EFKA contributions, employer costs and net salary for 2025.
Works offline2025 ratesClear results
Get on Google Play 03
Free on Android
Cyprus Tax Calculator
Calculate Cyprus income tax, GHS/GESY, Social Insurance, SDC on rentals and net salary for 2023–2025.
Works offlineNo registrationOn-device
Get on Google Play Mission of the project
Make financial tools accessible, accurate and easy to use.
No stress, no confusion. Our calculators run on your device, work offline and are designed to give clear results quickly.
Offline first
Use the tools without waiting on a connection.
Privacy first
Your calculations stay on your device.
Dependable utility
Focused apps for real, everyday financial tasks.
Coming next
Cyprus Tax Calculator 2026
A paid Android app coming soon. Updated Cyprus tax calculations for 2026, with clear results and offline support.