# Rlinguo vs ChampDex

The clearest difference is rating: Rlinguo at 5.0 against ChampDex's 3.1. Rlinguo also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (13.0 vs 17.0). ChampDex's advantage is ratings volume (7 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Rlinguo holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

Rlinguo ships an update every 5 days, ChampDex every 2 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Rlinguo | ChampDex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rlinguo/id6738416608/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/champdex/id6761497339/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 53 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ThinkR](https://appshunter.io/developer/1773249710) | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) |

## 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


### ChampDex

[App page](https://appshunter.io/ios/app/champdex/id6761497339)

This app helps Pokémon trainers strategize by building teams, calculating damage, and tracking the current meta. It offers tools for both casual play and competitive ranked battles, including team analysis and opponent previews.

**Highlights:** Team builder with type coverage and meta threat analysis, Game-day mode for opponent previews and recommendations, Damage and survival calculator with stat point allocation, Live meta data with usage rankings and EV spreads, Full Pokédex with all forms and competitive movesets, Battle journal to track win rates and matchups, Rental teams with proven competitive strategies

**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 ChampDex free?

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

### Which has better reviews, Rlinguo or ChampDex?

Rlinguo is rated higher. Rlinguo averages 5.0 out of 5 from 2 ratings, while ChampDex averages 3.1 from 7 ratings.

### Do Rlinguo or ChampDex have ads?

Neither Rlinguo nor ChampDex shows ads.

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

Rlinguo ships an update every 5 days, and ChampDex every 2 months. Most recently, Rlinguo was updated on October 2, 2026 and ChampDex on October 1, 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.*