# Calculator₊ vs SciMath Keyboard

The clearest difference is price: Calculator₊ at Free against SciMath Keyboard's $2.99. Calculator₊ also leads on chart position (#91 vs unranked) and device support (5 vs 2). SciMath Keyboard's advantage is in-app purchases (none vs 13) and ads (none vs shown).

Calculator₊ is free to download; SciMath Keyboard costs $2.99 up front. Calculator₊ sells 12 in-app purchases, starting at $0.99 per month. SciMath Keyboard asks for nothing beyond the download.

## The numbers

| Metric | Calculator₊ | SciMath Keyboard |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (1.7M ratings)](https://appshunter.io/ios/app/calculator/id398129933/reviews)** | — |
| Number of ratings | **1.7M** | — |
| Positive reviews | 63.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#91** | — |
| Size | 237 MB | 1 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [JAMES WILLIAM BRUCE SHAW](https://appshunter.io/developer/1896122556) |

## What reviewers say

### Calculator₊

[App page](https://appshunter.io/ios/app/calculator/id398129933)

**Currently charting:** #91 Top Grossing · Utilities (US App Store)

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

**Highlights:** Basic and scientific calculations, Unit and currency converter, AI-powered math solver with photo recognition, Math notes with instant solutions, Calculation history log, Accessibility features

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Member Special Offer | $0.99 | per month |
| Monthly Premium Member | $0.99 | per month |
| 1 Month Premium Access | $1.49 | per month |
| Unlimited Math Calculations | $3.99 | per 6 months |
| Half-Yearly Premium Member | $3.99 | per 6 months |
| Calculate Faster, AI, & No Ads | $4.99 | per 7 days |
| 1 Year Ad-Free | $5.99 | per year |
| Calculate Faster, AI, & No Ads | $5.99 | per 7 days |
| 1 Month Premium Trial | $5.99 | per 7 days |
| Math Solver/Full Access/No Ads | $5.99 | per 7 days |
| 6 Months Premium Access | $8.99 | per 6 months |
| Smart Currency & Fraction Calc | $14.99 | per year |

**What reviewers like**

- 💻 Useful calculator features
- 🎨 Customizable backgrounds and themes
- 📚 Helpful history tracking

**What reviewers complain about**

- 📺 Intrusive full-screen ads
- 💰 Expensive subscription model
- 🔍 Ads blocking calculator functionality

**Reported bugs**

- Incorrect calculation results for certain functions
- Inability to delete last entered digit without clearing entire calculation

**Requested features**

- Ability to delete individual calculation history entries
- More free advanced calculator features (fractions, currency, etc.)
- Improved ad placement that doesn't interfere with usage


### SciMath Keyboard

[App page](https://appshunter.io/ios/app/scimath-keyboard/id6765902032)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator₊ free?

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

### Is SciMath Keyboard free?

SciMath Keyboard costs $2.99, with no in-app purchases.

### Do Calculator₊ or SciMath Keyboard have ads?

Calculator₊ shows ads; SciMath Keyboard does not.

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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.*