# Calculator & Converter vs Math Sphere

The clearest difference is update cadence: Calculator & Converter at every 4 days against Math Sphere's every 3 weeks. Math Sphere's advantage is iOS requirement (13.0 vs 15.3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calculator & Converter ships an update every 4 days, Math Sphere every 3 weeks. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculator & Converter | Math Sphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/calculator-and-converter-eysk/id1620029636/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 15.3 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kiseon Cho](https://appshunter.io/developer/1609478221) | [otsuki hayato](https://appshunter.io/developer/1828600192) |

## What reviewers say

### Calculator & Converter

[App page](https://appshunter.io/ios/app/calculator-and-converter-eysk/id1620029636)

This app offers a powerful yet simple calculator and converter for iOS users. It features a clean interface with real-time calculation results and supports advanced mathematical and scientific functions. Customize your experience with color options and efficient memory functions.

**Highlights:** Intelligent calculator with simple interface, Supports mathematics, scientific, and converter functions, Real-time calculation results display, Memory functions (M0-M4) for reusing results, Organized into four efficient tabs, Customizable primary text colors

**Features:** Vision Pro support

**In-app purchases:** none


### Math Sphere

[App page](https://appshunter.io/ios/app/math-sphere/id6749747366)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator & Converter free?

Calculator & Converter is free to download, with no in-app purchases.

### Is Math Sphere free?

Math Sphere is free to download, with no in-app purchases.

### Do Calculator & Converter or Math Sphere have ads?

Neither Calculator & Converter nor Math Sphere shows ads.

### Which is updated more often, Calculator & Converter or Math Sphere?

Calculator & Converter ships an update every 4 days, and Math Sphere every 3 weeks. Most recently, Calculator & Converter was updated on October 15, 2026 and Math Sphere on October 8, 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.*