Sheetless calculations. Complete privacy.
Rowen is an offline-first calculation ledger for iPhone. Minimal, tactile, and built without the clutter of heavy spreadsheets.
Calculations without the weight of spreadsheets.
Smart Strips
Dedicated calculation strips for highway fuel consumption, freelance billable hours, specialty coffee doses, and dinner bill splits.
Under 3s Numpad & Math
Numeric fields summon an instant arithmetic keypad. Type natural notes like "Paint 450 + Roller 120" and Rowen auto-computes the total.
Zero Cloud Storage
All numbers and formulas remain strictly on your iPhone in encrypted local SQLite. We never track, inspect, or store your ledger remotely.
WidgetKit & iCloud Sync
Live Home Screen & Lock Screen widgets powered by iOS WidgetKit. Optional automated backups to your personal Apple iCloud container.
Ready to ditch spreadsheet clutter?
Rowen is currently in final testing for the iOS App Store. Designed with a retro dark aesthetic, haptic feedback, and local-first architecture.