Calculator Pro 100% vs Calculator ⁺⁻
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Pro 100%
A practical and functional scientific calculator designed for iPad. It allows users to save and reuse previous calculations, displays partial results, and shows the current expression for clarity. This app is completely free to use.
- Scientific calculator functionality
- Save and reuse calculations
- Supports various operations
- Shows partial results
- Displays current expression
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A practical and functional calculator, for any type of use, 100% free! It is a classic scientific calculator, which: -It is built specifically for iPad -Can save previous calculations and reuse them for new calculations -Supports various types of operations -Shows the partial results of the expression even before the calculation is finished -Shows the current expression above the result, so you don't forget the initial calculation This calculator is 100% free, so there are no annoying pop-ups asking to buy a full version or a subscription!
Calculator ⁺⁻
This app offers both basic and scientific calculation functions for iPhone and iPad. Users can customize its appearance, view calculation history, and perform complex equations with high accuracy. It also provides real-time calculation display and adjustable touch feedback.
- Basic and scientific calculator modes
- Over 30 scientific operations
- Calculation history view
- Real-time calculation display
- Customizable color themes
- Adjustable button touch sound/vibration
- High accuracy calculations (75+ significant digits)
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Calculator for iPad and iPhone is an easy to use that includes both a standard and scientific calculator. Calculator app allows you to: • Customize the look of the application by changing the color • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • View history of your calculations on the History Tab • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations • Change button touch sound with vibration • Displays real time calculation
Screenshots
Verdict
The clearest difference is update cadence: Calculator Pro 100% at every 3 weeks against Calculator ⁺⁻'s every 15 months. Calculator Pro 100% also leads on iOS requirement (12.0 vs 15.0). Calculator ⁺⁻'s advantage is review sentiment (50% vs 40%) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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 Pro 100% ships an update every 3 weeks, Calculator ⁺⁻ every 15 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | Calculator Pro 100% | Calculator ⁺⁻ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (42 ratings) — better |
| Positive reviews | 40.0% of reviews | 50.0% of reviews — better |
| Number of ratings | — | 42 — better |
| Update frequency | Every 3 weeks — better | Every 15 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Fabio Giuliani | Matrix Software Co. |
Customer experience
Calculator Pro 100%
Calculator ⁺⁻
In-app purchases
Calculator Pro 100%
No in-app purchases
Calculator ⁺⁻
No in-app purchases
Questions
Is Calculator Pro 100% free?
Is Calculator ⁺⁻ free?
Do Calculator Pro 100% or Calculator ⁺⁻ have ads?
Which is updated more often, Calculator Pro 100% or Calculator ⁺⁻?
Other comparisons
