Calculator⁻ vs Jettle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator⁻
A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.
- Basic arithmetic operations
- Percentage calculations
- Record and recall results
- Customizable colors
- Touch sound option
Read full descriptionHide full description
It is a simple and easy calculator. It is a simple calculator with no complex functions at all. Features: Addition, subtraction, multiplication, division, percent operation Recording and recalling calculation results The numbers, operators, parentheses, results Custom colors Use touch sound Very useful for school children
Jettle
Read full descriptionHide full description
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 ads: Jettle at none against Calculator⁻'s shown. Jettle also leads on update cadence (weekly vs every 2 months). Calculator⁻'s advantage is iOS requirement (13.0 vs 18.0). On price, 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.
Calculator⁻ ships an update every 2 months, Jettle weekly. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | Calculator⁻ | Jettle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (3.6K ratings) — better | — |
| Positive reviews | 52.0% of reviews | — |
| Number of ratings | 3.6K — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | UniCom Technology | Yunqing Fei |
Bugs and requests
Calculator⁻
Reported bugs
3 issues- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly
Requested features
3 requests- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout
Jettle
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator⁻
No in-app purchases
Jettle
No in-app purchases
Questions
Is Calculator⁻ free?
Is Jettle free?
Do Calculator⁻ or Jettle have ads?
Which is updated more often, Calculator⁻ or Jettle?
Other comparisons
