# Calculator M+ vs Calculator ⁺⁻

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator M+'s 1. Calculator M+'s advantage is ads (none vs shown) and update cadence (fortnightly vs every 15 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Calculator M+ sells 1 in-app purchase, starting at $6.99 per year. Calculator ⁺⁻ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Calculator M+ against 4.7 for Calculator ⁺⁻. Both are backed by a comparable volume of ratings — 111 and 42 respectively. Written reviews are what separate them: 64% of Calculator M+'s written reviews are positive against 50% of Calculator ⁺⁻'s.

Calculator M+ ships an update fortnightly, Calculator ⁺⁻ every 15 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Calculator M+ | Calculator ⁺⁻ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (111 ratings)](https://appshunter.io/ios/app/calculator-m-plus/id1449722969/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/calculator/id6443813573/reviews)** |
| Number of ratings | **111** | 42 |
| Positive reviews | **63.6% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 15 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 8 MB | 4 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [InnovationBox](https://appshunter.io/developer/388046149) | [Matrix Software Co.](https://appshunter.io/developer/1457004046) |

## What reviewers say

### Calculator M+

[App page](https://appshunter.io/ios/app/calculator-m-plus/id1449722969)

Perform a wide range of calculations, from basic arithmetic to complex scientific functions. This app offers memory storage, calculation history, and cross-platform support. It includes features like dark mode and Apple Pencil integration for enhanced usability.

**Highlights:** Scientific calculations, Memory storage, Calculation history, Cross-platform support, Dark mode, Apple Pencil support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator M+ Pro Annual | $6.99 | per year |


### Calculator ⁺⁻

[App page](https://appshunter.io/ios/app/calculator/id6443813573)

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.

**Highlights:** 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)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculator M+ free?

Calculator M+ is free to download, with in-app purchases available.

### Is Calculator ⁺⁻ free?

Calculator ⁺⁻ is free to download, with no in-app purchases.

### Which has better reviews, Calculator M+ or Calculator ⁺⁻?

Calculator ⁺⁻ is rated higher. Calculator M+ averages 4.5 out of 5 from 111 ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.

### Do Calculator M+ or Calculator ⁺⁻ have ads?

Calculator ⁺⁻ shows ads; Calculator M+ does not.

### Which is updated more often, Calculator M+ or Calculator ⁺⁻?

Calculator M+ ships an update fortnightly, and Calculator ⁺⁻ every 15 months. Most recently, Calculator M+ was updated on October 24, 2026 and Calculator ⁺⁻ on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*