# Rlinguo vs MathCage

The clearest difference is update cadence: Rlinguo at every 5 days against MathCage's every 3 months. Rlinguo also leads on iOS requirement (13.0 vs 16.0). 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.

Rlinguo ships an update every 5 days, MathCage every 3 months. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Rlinguo | MathCage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rlinguo/id6738416608/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free | — |
| Size | 53 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ThinkR](https://appshunter.io/developer/1773249710) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### Rlinguo

[App page](https://appshunter.io/ios/app/rlinguo/id6738416608)

Test your R programming knowledge with this fun, mobile game. Guess which package an R function belongs to, all while experiencing data science on your phone. Enjoy a smooth, playful experience with offline capabilities.

**Highlights:** Guess R function package origins, R programming on mobile, Data science experience on device, Local SQL database integration, Offline play supported, Smooth user experience

**Features:** macOS Compatibility

**In-app purchases:** none


### MathCage

[App page](https://appshunter.io/ios/app/mathcage-number-logic/id6769718127)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rlinguo free?

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

### Is MathCage free?

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

### Do Rlinguo or MathCage have ads?

Neither Rlinguo nor MathCage shows ads.

### Which is updated more often, Rlinguo or MathCage?

Rlinguo ships an update every 5 days, and MathCage every 3 months. Most recently, Rlinguo was updated on October 2, 2026 and MathCage on September 22, 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.*