Numby vs Jettle
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Numby
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Numby is a calculator reimagined with design at its core. Tired of cluttered, outdated calculator apps? Numby offers a refreshingly clean experience with bold, easy-to-read numbers and a thoughtfully minimal interface. Why Numby? Beautiful Typography โ Large, high-contrast display makes results instantly readable. Color-Coded Operators โ Blue for division, red for multiplication. Recognize operations at a glance. Minimal Design โ No clutter, no distractions. Just clean, focused calculations. Expression Preview โ See your current calculation below the result. Everyday tools deserve great design. Try Numby today.
Jettle
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Jettle: Your Pocket-Sized Math Genius Jettle is an intuitive mobile application designed to simplify mathematics for students, professionals, and lifelong learners. Built on a powerful computational engine, Jettle goes beyond a standard calculator by providing accurate solutions, interactive graphing, and concept explanations that turn complex problems into manageable tasks. Whether you are tackling high school algebra or optimizing financial models, Jettle is the ultimate companion for clarity and speed. Key Features Geometry Calculator: Instantly calculate the area and perimeter of figures. Interactive Graphing: Visualize functions and data points effortlessly using the Grapher function. Concepts Dictionary: Access a comprehensive database of mathematical words, from basic geometry to advanced calculus and statistical distribution models. Who is it for? Jettle is built for anyone who needs to crunch numbers with confidence. It is an essential tool for students preparing for exams, engineers checking field calculations, and finance professionals needing quick validation for complex equations. With a clean, ad-free interface and offline capabilities, Jettle ensures that mathematical support is always just a tap away.
Screenshots
Verdict
The clearest difference is update cadence: Numby at every 2 days against Jettle's weekly. Numby also leads on iOS requirement (16.6 vs 18.0). Jettle's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Numby ships an update every 2 days, Jettle weekly. Both last shipped on November 9, 2026.
| Parameter | Numby | Jettle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days โ better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, Mac โ better |
| Requires iOS | 16.6 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 16 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | TEAM MILESTONE GP. | Yunqing Fei |
In-app purchases
Numby
No in-app purchases
Jettle
No in-app purchases









