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Email mumer92@gmail.com with the app version, device model, operating-system version, calculator name, inputs used, and what you expected. Please do not include confidential business or financial information.
Margin/Cost Calculator
Price for profit. Protect every margin.
A private, focused workspace with 51 business, finance, percentage, and utility calculators for iPhone and iPad—plus 48 practical tools on Apple Watch.
Compatibility
Version 2.0 requires iOS or iPadOS 26. The companion app requires watchOS 26. Some Apple Intelligence features require compatible hardware and system settings.
Your data
Calculations, settings, history, favorites, and saved scenarios stay on your device. The app has no account system, advertising SDK, or developer analytics service.
Before reporting a result
- Confirm whether the calculator expects tax-inclusive or tax-exclusive values.
- Remember that margin is profit divided by revenue; markup is profit divided by cost.
- Financial, tax, salary, and investment results are estimates, not professional advice.
- For a reproducible report, include all entered values and selected options.
Privacy policy
Read how optional location access, on-device storage, Apple Intelligence, widgets, Siri, and Watch features are handled.