Comparison

Calculator vs Jettle

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

Head to head
About

Calculator

Features
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Designed for frequent calculations, making every input faster and smoother. Entered one wrong digit? There is no need to start over. FastCalc lets you edit an expression directly, insert, delete, or change numbers and operators at any position, and see the result update as you type. EDIT FREELY • Insert, delete, or change any part of an expression • Calculate and display results in real time as you type • Smart input checks help reduce invalid expressions and input errors FASTER INPUT • A larger, more prominent “+” key for repeated calculations • A dedicated “00” key for entering large numbers more efficiently • Start with “.” and the leading zero is added automatically, saving one tap CALCULATION HISTORY • View the current expression and calculation history on the same screen for easy comparison and reuse • Double-tap a history item to use it again • Copy a result, insert it, or replace the current expression • Premium lets you add color tags and notes to important calculations CLEAR DISPLAY • Choose three-digit or four-digit number grouping • Use a comma, space, or underscore as the separator to match different regional number formats • Long expressions remain clear and easy to review or edit CONVENIENT CONTROLS • On supported system versions, open the calculator from Control Center or the Lock Screen • Optionally clear the expression after pressing “=” so you can begin the next calculation immediately PERSONALIZE YOUR EXPERIENCE • Choose from multiple calculator themes • Some themes support both light and dark appearances • Select from several key sounds and spoken feedback options • Refined sound and haptic feedback make every tap feel more responsive PREMIUM Make one lifetime purchase to unlock history colors and notes, every theme and sound option, and other Premium features. FastCalc does more than display an answer. It is designed to make entering, editing, comparing, and reusing calculations more convenient. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://baolesoft.com/privacy/fast-calculator/

About

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

Calculator1 screens
Jettle4 screens

Verdict

The call

The clearest difference is in-app purchases: Jettle at none against Calculator's 3. Calculator's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, ads 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. Calculator sells 3 in-app purchases, starting at $0.99 per month. Jettle asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator ships an update fortnightly, Jettle weekly. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 4 level
Calculator versus Jettle: the parameters behind the verdict, then further details
ParameterCalculatorJettle
PriceFreeFree
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better18.0
Further details — not scored
Size8 MB21 MB
Age rating4+4+
Developer深圳宝乐软件有限公司Yunqing Fei

In-app purchases

3 purchases

Calculator

Subscriptions2
  • 1个月$0.991 Month
  • 1 年$1.991 Year
One-time1
  • 终身会员$2.99
None

Jettle

No in-app purchases

Questions

Is Calculator free?
Calculator is free to download, with in-app purchases available.
Is Jettle free?
Jettle is free to download, with no in-app purchases.
Do Calculator or Jettle have ads?
Neither Calculator nor Jettle shows ads.
Which is updated more often, Calculator or Jettle?
Calculator ships an update fortnightly, and Jettle weekly. Most recently, Calculator was updated on November 3, 2026 and Jettle on November 9, 2026.

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