# Calculator ⁺⁻ vs Calculator AI

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator AI's 2. Calculator ⁺⁻ also leads on ratings volume (40 vs 3). Calculator AI's advantage is ads (none vs shown) and update cadence (every 11 days vs every 15 months). On price, rating and device support there is nothing between them.

Both are free to download. Calculator AI sells 2 in-app purchases, starting at $2.99 per 7 days. Calculator ⁺⁻ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Calculator ⁺⁻ against 4.7 for Calculator AI. That said, the two scores are not equally well evidenced: Calculator ⁺⁻ has 40 ratings behind it against 3, so its average is the more settled of the two.

Calculator ⁺⁻ ships an update every 15 months, Calculator AI every 11 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Calculator ⁺⁻ | Calculator AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (40 ratings)](https://appshunter.io/ios/app/calculator/id6443813573/reviews) | [4.7 (3 ratings)](https://appshunter.io/ios/app/calculator-ai-math-solver/id6743835941/reviews) |
| Number of ratings | **40** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 11 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 4 MB | 34 MB |
| Requires iOS | 15.0 | **13** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matrix Software Co.](https://appshunter.io/developer/1457004046) | [Siyong Studio](https://appshunter.io/developer/6777462143) |

## What reviewers say

### 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


### Calculator AI

[App page](https://appshunter.io/ios/app/calculator-ai-math-solver/id6743835941)

This app offers advanced scientific calculations and an AI-powered natural language processing engine. It can solve complex math problems and answer real-world questions, while also providing personalized visual themes for a unique user experience.

**Highlights:** Advanced scientific calculations, AI-powered natural language processing, Real-world question answering, Customizable calculator skins, Matrix solutions, Currency conversion

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $2.99 | per 7 days |
| 年会员 | $19.99 | per year |


## Frequently asked questions

### Is Calculator ⁺⁻ free?

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

### Is Calculator AI free?

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

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

Calculator ⁺⁻ and Calculator AI are both rated 4.7 out of 5 on the App Store, from 40 and 3 ratings respectively.

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

Calculator ⁺⁻ shows ads; Calculator AI does not.

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

Calculator ⁺⁻ ships an update every 15 months, and Calculator AI every 11 days. Most recently, Calculator ⁺⁻ was updated on October 8, 2026 and Calculator AI on October 13, 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.*