ConvertCalc vs Meowulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ConvertCalc
This app combines a powerful calculator with an advanced unit converter, offering over 200 units across 19 categories. It allows for unified calculations and conversions in one step, with features like live currency exchange and date conversions. An optional pro version unlocks advanced customization and organizational tools.
- Unified calculation and conversion workflow
- Over 200 units across 19 categories
- Live currency conversion
- Multiple calendar system conversions
- Age calculator
- Customizable themes and layouts
- Offline functionality (excluding live currency)
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ConvertCalc – Pro Calculator & Unit Converter Fast. Private. Ad-free. Over 200+ units. The only calculator you’ll ever need. ConvertCalc combines a powerful everyday calculator with an advanced unit converter in one clean, distraction-free app. Built for students, travelers, freelancers, and professionals who need accurate results instantly — without ads or clutter. WHY CONVERTCALC? Unified Workflow Calculate and convert in one step. Enter an equation, get the result, and instantly convert it to any unit. No switching apps. No extra taps. POWERFUL UNIT CONVERSION 19 categories. Hundreds of units. Real-world use cases: Essentials Length, Mass, Volume, Area, Temperature, Time, Speed Travel & Finance Live currency conversion (30+ major currencies) Shoe size conversion (Men, Women, Kids) Science & Engineering Force, Energy, Power, Pressure, Torque, Fuel Consumption Technology Data storage (Bit to Yottabyte) Data transfer speeds Calendar Systems Convert dates across: Gregorian, Japanese, Buddhist, Islamic, Hebrew, Chinese Lunar, Indian, Persian, ISO 8601, ROC Age Finder Instant age calculator and estimator GO PRO – TOTAL CONTROL Unlock the full power of ConvertCalc Pro: Favorite Pairs Save common conversions for quick access (USD to EUR, Meters to Feet, Celsius to Fahrenheit) One-Handed Layouts Compact, Right-handed and Left-handed modes Unlimited Named History Save, label, and organize your calculations Saved Shoe Profiles Store sizes for family and friends Full Organization Reorder currencies and units your way Advanced Rounding Control decimals and precision Premium Customization 50+ themes and custom colors Design your perfect calculator 100% Ad-Free Forever BUILT FOR DAILY USE Works offline (except live currency updates) Smart history tracking No tracking, no ads Clean, modern interface Download ConvertCalc One app. Endless calculations.
Meowulator
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Meowulator turns everyday math into the cutest thing on your phone. Every key is a soft plush kitten. Tap to do your sums, hear an adorable meow, and feel a gentle purr of haptic feedback with every press. • A whole keypad of fuzzy felt cats • Cute meow sounds — pick your favorite kitty voice • Satisfying tap feedback on every key • A friendly mascot cat watching over your numbers • More adorable skins on the way A simple, full calculator — add, subtract, multiply, divide — wrapped in the coziest cat theme. Meow your way through the numbers.
Screenshots
Verdict
The clearest difference is in-app purchases: Meowulator at none against ConvertCalc's 1. Meowulator also leads on ads (none vs shown). ConvertCalc's advantage is iOS requirement (17.0 vs 26.4). On price, update cadence 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. ConvertCalc sells 1 one-off in-app purchase. Meowulator asks for nothing beyond the download.
ConvertCalc ships an update every 8 days, Meowulator every 9 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | ConvertCalc | Meowulator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 days — better | Every 9 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 28 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Riehl | Shanghai Runesmith Artificial Intelligence Technology Co., Ltd. |
In-app purchases
ConvertCalc
- ConvertCalc Pro$8.99
Meowulator
No in-app purchases









