Calculator ⁺⁻ vs + Simple Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
+ Simple Calc
Perform calculations with a standard calculator that offers extensive customization. Choose from 17 color themes and custom icons, plus enjoy light and dark mode support.
- Standard calculator functionality
- Light and dark mode
- 17 color themes
- Custom icons
- iPhone support
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Do the math with Simple Calc. This is a standard calculator that supports light and dark mode, and 17 color themes + custom icons.
Screenshots
Verdict
The clearest difference is review sentiment: + Simple Calc at 100% against Calculator ⁺⁻'s 50%. + Simple Calc also leads on ads (none vs shown) and update cadence (every 5 days vs every 15 months). Calculator ⁺⁻'s advantage is ratings volume (40 vs 2) and device support (3 vs 1). On price, in-app purchases and iOS requirement 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.
+ Simple Calc holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Calculator ⁺⁻ has 40 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Calculator ⁺⁻'s written reviews are positive against 100% of + Simple Calc's.
Calculator ⁺⁻ ships an update every 15 months, + Simple Calc every 5 days. The most recent releases landed on September 7, 2026 and July 1, 2026 respectively.
| Parameter | Calculator ⁺⁻ | + Simple Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (40 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 40 — better | 2 |
| Update frequency | Every 15 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Matrix Software Co. | Alejandro de la Rosa Cortes |
Customer experience
Calculator ⁺⁻
+ Simple Calc
In-app purchases
Calculator ⁺⁻
No in-app purchases
+ Simple Calc
No in-app purchases
Questions
Is Calculator ⁺⁻ free?
Is + Simple Calc free?
Which has better reviews, Calculator ⁺⁻ or + Simple Calc?
Do Calculator ⁺⁻ or + Simple Calc have ads?
Which is updated more often, Calculator ⁺⁻ or + Simple Calc?
Other comparisons
