feevio

Support & FAQ

Get Help

If you have a question, found a bug, or want to request a feature, open an issue on GitHub.

Frequently Asked Questions

What calculators are included?

Feevio includes ten calculators built for small business sellers:

  1. Reverse Tax — Find the pre-tax price from a tax-inclusive total
  2. Sales Tax — Calculate tax amount and total from a pre-tax price
  3. Discount — See the final price and savings after a percentage discount
  4. Margin vs Markup — See profit margin and markup side by side
  5. Break-Even — Calculate how many units you need to sell to cover costs
  6. Marketplace Fee — Compute platform fees and your net amount
  7. Net Payout — Get your true profit after costs, shipping, and fees
  8. Hourly Rate — Find the hourly rate you need to hit your income goal
  9. % Change — Calculate the percentage increase or decrease between two values
  10. Tip Split — Split a bill with tip evenly among a group

Does Feevio collect my data?

No. Feevio does not collect, transmit, or store any personal data. The free version displays ads served by Google AdMob, which may collect device identifiers per Google’s privacy policy. Upgrading to premium removes all ads. See our Privacy Policy for details.

What devices does Feevio support?

Feevio requires iOS 17.0 or later. The Apple Watch companion app requires watchOS 10.0 or later and is included with Feevio Premium.

Is Feevio free?

Yes — Feevio is free to download and use. A one-time in-app purchase removes ads and unlocks premium features including calculation history and the Apple Watch companion app.

Do my inputs get saved?

Yes — your calculator inputs persist between sessions using on-device storage. This data never leaves your device.

What does Premium include?

Feevio Premium is a one-time purchase that includes: