Comparison

Easy Percentage vs Rosetta

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Easy Percentage

Features
Read full description

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.

About

Rosetta

Features
Read full description

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

Easy Percentage3 screens
Rosetta4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 4 level
Easy Percentage versus Rosetta: the parameters behind the verdict, then further details
ParameterEasy PercentageRosetta
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size2 MB35 MB
Age rating4+4+
DeveloperMatteo SpadaOptiwise

In-app purchases

None

Easy Percentage

No in-app purchases

None

Rosetta

No in-app purchases

Questions

Is Easy Percentage free?
Easy Percentage is free to download, with no in-app purchases.
Is Rosetta free?
Rosetta is free to download, with no in-app purchases.
Do Easy Percentage or Rosetta have ads?
Neither Easy Percentage nor Rosetta shows ads.

Other comparisons