Prozent – Percent Calculator
Julian Paul Bermeiser Utilities iPhoneiPadiPod touch
Prozent – Percent Calculator is a free Utilities app for iPhone and iPad by Julian Paul Bermeiser. Requires iOS 17.0. Updated October 18, 2026.
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Oct 18
- 2026 · v1.0.1
Screenshots
About Prozent – Percent Calculator
Prozent writes every percentage calculation as a sentence you can read at a glance. Enter your numbers and the answer appears at the end: 15 % of 200 = 30. All eight calculations are on one screen at the same time, so you never have to switch screens to find the right one. EIGHT CALCULATIONS AT A GLANCE • Percent of – 15 % of 200 = 30. Also shows 1 % and 10 % of the base, handy for mental maths. • Plus or minus % – 200 plus 19 % = 238. Switch between plus and minus and see the amount added or saved and the factor (1.19). • Share in percent – 50 of 200 = 25 %. Also shows the difference and the rest to 100 %. • Base value – 50 = 25 % of 200. Find the whole amount from a part, with the difference and the rest. • Change – 200 → 250 = +25 %. Shows the difference, the factor and the way back (−20 %). • VAT – 100 net + 19 % = 119. Switch between net and gross to calculate in both directions. The VAT amount, net and gross are always shown. • Tip – 48.50 + 10 % ÷ 2 = 26.68. Add a tip and split the bill: per person, total and tip. • Margin – Cost 40 price 99 = +59.60 %. Enter cost price and sale price to see margin, markup and profit. UNDERSTAND THE NUMBERS Every calculation comes with a one-line explanation. Tap it to read more about the terms, for example why margin and markup are not the same, or why the way back is a different percentage. QUICK TO USE • A custom keypad slides up, with quick percentages 5, 7, 10, 15, 19, 20, 25 and 50 % for percentage fields. • A Next key takes you to the next field, plus Clear and backspace keys. • Tap a result to copy the plain number. A small bar then lets you share the full sentence, for example “15 % of 200 = 30”. • Your inputs and settings are remembered. FREE AND PRIVATE Prozent is free. No ads, no in-app purchases, no account and no tracking. The app collects no data and works completely offline. MAKE IT YOURS • Default tax rate: 19, 7, 20, 25 or 0 % • Decimal places: automatic, exact, 0, 2 or 4 – “exact” rounds nothing away • Currency symbol: none or one of 15 – €, $, £, CHF, ¥, ₹, zł, Kč and more (shown on money amounts only) • Explanations on or off • Appearance: system, light or dark • Language: English or German • Reorder or hide calculations • Reset everything EASY TO READ Large, bold type on a warm, paper-like background with a fine grid and a dark header. Light and dark mode are both included. Prozent follows the text size you set on your iPhone and supports the built-in screen reader. Made by OS Factory.
What’s new
Version 1.0.1 · Updated October 18, 2026
After you have used the app for a while, it now asks once whether you would like to rate it – at most once a year. Plus small improvements.
App privacy
The developer, Julian Paul Bermeiser, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Prozent – Percent Calculator
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100% Percent Calculator
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Prozent – Percent Calculator | – | Free | October 18, 2026 | |
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| LuxeCalc All-in-One Calculator | – | Free | Oct 19, 2026 | Compare |
| Discount Calculator & Tax | – | Free | Oct 21, 2026 | Compare |
| PokeWert · Karten Wert Scanner | – | Free | Jul 9, 2026 | Compare |
| 100% Percent Calculator | 5.0 / 5 (3) | Free | Aug 9, 2026 | Compare |
| Percentage Calculator %: Tax | – | Free | Sep 17, 2025 | Compare |