# Maths Formulas Lite vs 数独 8

The clearest difference is price: Maths Formulas Lite at Free against 数独 8's $0.99. Maths Formulas Lite also leads on in-app purchases (none vs 1) and iOS requirement (15.1 vs 17.6). 数独 8's advantage is update cadence (every 5 days vs every 2 months). On ads and device support there is nothing between them.

Maths Formulas Lite is free to download; 数独 8 costs $0.99 up front. 数独 8 sells 1 one-off in-app purchase. Maths Formulas Lite asks for nothing beyond the download.

Maths Formulas Lite ships an update every 2 months, 数独 8 every 5 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Maths Formulas Lite | 数独 8 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (100 ratings)](https://appshunter.io/ios/app/maths-formulas-lite/id645431389/reviews)** | — |
| Number of ratings | **100** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 56 MB | 36 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NSC CO. PTY LTD](https://appshunter.io/developer/579522076) | [梦旭 张](https://appshunter.io/developer/1788338420) |

## What reviewers say

### Maths Formulas Lite

[App page](https://appshunter.io/ios/app/maths-formulas-lite/id645431389)

Access a comprehensive collection of basic and advanced mathematical formulas across various subjects like algebra, geometry, and calculus. This app offers tools for calculations, unit conversions, and allows users to save favorite formulas and add custom notes. It supports a wide range of languages and is suitable for students and professionals.

**Highlights:** Extensive formula library, Geometry shape calculators, Equation root finder, Unit conversion tools, Favorite formulas folder, Search function, Multi-language support

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

**In-app purchases:** none


### 数独 8

[App page](https://appshunter.io/ios/app/8/id6742703658)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SudoKu 8 all game modes | $0.99 | one-time |


## Frequently asked questions

### Is Maths Formulas Lite free?

Maths Formulas Lite is free to download, with no in-app purchases.

### Is 数独 8 free?

数独 8 costs $0.99, and also offers in-app purchases.

### Do Maths Formulas Lite or 数独 8 have ads?

Neither Maths Formulas Lite nor 数独 8 shows ads.

### Which is updated more often, Maths Formulas Lite or 数独 8?

Maths Formulas Lite ships an update every 2 months, and 数独 8 every 5 days. Most recently, Maths Formulas Lite was updated on October 3, 2026 and 数独 8 on October 11, 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.*