Easy Percentage vs Rosetta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Percentage
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Easy Percentage - Math Made Simple Transform your percentage calculations with the most intuitive calculator app on the App Store. Whether you're shopping for discounts, calculating tips, or solving homework problems, our beautiful and powerful app makes percentage math effortless. Key Features: • Find what percentage one number is of another (e.g., "What % is 25 of 100?") • Calculate percentage of a number (e.g., "What is 20% of 150?") • Find the total when you know the part and percentage (e.g., "If 30 is 25%, what's the total?") Smart Results: • Automatic decimal formatting - shows whole numbers when possible, decimals when needed • One-tap copy to clipboard for easy sharing • Clear, readable results in beautiful green boxes Premium Experience: • Haptic feedback for tactile confirmation (optional) • Dark and light mode support • Clean, distraction-free interface • No ads, no subscriptions Perfect For: • Shopping discounts and sales • Restaurant tips and bill splitting • School and homework problems • Business calculations • Investment and finance • Everyday percentage needs No ads. No subscriptions.
Rosetta
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Translate measurements instantly. A calm, ad-free unit converter for everyday checks — currency, weight, length, temperature, and ten more categories. Tap either side to make it the active value; both cards are first-class, so you can convert in either direction with one tap. Star up to ten favorites for one-tap reuse from the home screen. Currency rates come from the European Central Bank — cached after your first fetch, so they keep working offline. THIRTEEN CATEGORIES • Currency — 165 ISO currencies, ECB-sourced rates • Length — meters, feet, miles, kilometers, yards, inches • Mass — grams, kilograms, pounds, ounces, stones • Temperature — Celsius, Fahrenheit, Kelvin • Volume — liters, gallons, cups, fluid ounces, milliliters • Speed — m/s, km/h, mph, knots • Area — m², ft², acres, hectares • Time, Energy, Power, Pressure, Data, Angle WHY ROSETTA IS DIFFERENT • No ads. No tracking. No accounts. No analytics SDK ships in the app. • No settings to configure. The defaults are the right defaults. • Works offline. Currency rates cache after one online fetch; everything else needs no network at all. • Two-way input — convert in either direction with a single tap. • Tap any result to copy. A quiet "Copied" toast confirms. • Light and dark mode automatic, with locale-aware number formatting and gentle haptics. Free. Forever free. Made by Optiwise. Support: contact@optiwise.us Site: rosetta.optiwise.us
Screenshots
Verdict
The clearest difference is iOS requirement: Rosetta at 15.1 against Easy Percentage's 17.6. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Easy Percentage | Rosetta |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Matteo Spada | Optiwise |
In-app purchases
Easy Percentage
No in-app purchases
Rosetta
No in-app purchases
Questions
Is Easy Percentage free?
Is Rosetta free?
Do Easy Percentage or Rosetta have ads?
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