# Encyclopedia 3 by Informant vs ChessBase Mobile Chess

The clearest difference is review sentiment: Encyclopedia 3 by Informant at 100% against ChessBase Mobile Chess's 41%. Encyclopedia 3 by Informant also leads on rating (4.9 vs 2.9) and monetization model (free vs freemium). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Encyclopedia 3 by Informant sells 1 one-off in-app purchase and ChessBase Mobile Chess sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Encyclopedia 3 by Informant holds the better App Store score, 4.9 against 2.9. Both are backed by a comparable volume of ratings — 17 and 18 respectively. Written reviews point the same way: 100% of Encyclopedia 3 by Informant's written reviews are positive against 41% of ChessBase Mobile Chess's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Encyclopedia 3 by Informant | ChessBase Mobile Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17 ratings)](https://appshunter.io/ios/app/encyclopedia-3-by-informant/id1256485200/reviews)** | [2.9 (18 ratings)](https://appshunter.io/ios/app/chessbase-mobile-chess/id6739000093/reviews) |
| Number of ratings | 17 | **18** |
| Positive reviews | **100.0% of reviews** | 40.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Freemium |
| Size | 44 MB | 1 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chess King](https://appshunter.io/developer/1096660597) | [ChessBase GmbH](https://appshunter.io/developer/417720797) |

## What reviewers say

### Encyclopedia 3 by Informant

[App page](https://appshunter.io/ios/app/encyclopedia-3-by-informant/id1256485200)

This educational tool offers systematic chess training with advanced-level combinations for players rated 2400 ELO. It provides interactive lessons, hints, and explanations to improve tactical skills and game knowledge. The app challenges users consistently, unveiling new intricacies as they master specific tactics.

**Highlights:** Advanced level chess combinations, Systematic training by theme, Interactive theoretical lessons, Hints and refutations for mistakes, Play positions against computer, Monitors ELO rating changes, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Course | $9.99 | one-time |


### ChessBase Mobile Chess

[App page](https://appshunter.io/ios/app/chessbase-mobile-chess/id6739000093)

Access a vast chess game database, save and analyze your own games, and practice openings. This app offers advanced notation and sharing features, with a free tier and optional premium upgrades for more extensive cloud storage and search capabilities.

**Highlights:** Access 13+ million chess games, Save and sync personal game databases, Analyze games with built-in engine, Live opening book statistics, Create and practice opening repertoires, Advanced game notation and sharing, PGN file compatibility

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessBase Premium (Monthly) | $3.99 | per month |


## Frequently asked questions

### Is Encyclopedia 3 by Informant free?

Encyclopedia 3 by Informant is free to download, with in-app purchases available.

### Is ChessBase Mobile Chess free?

ChessBase Mobile Chess is free to download, with in-app purchases available.

### Which has better reviews, Encyclopedia 3 by Informant or ChessBase Mobile Chess?

Encyclopedia 3 by Informant is rated higher. Encyclopedia 3 by Informant averages 4.9 out of 5 from 17 ratings, while ChessBase Mobile Chess averages 2.9 from 18 ratings.

### Do Encyclopedia 3 by Informant or ChessBase Mobile Chess have ads?

Neither Encyclopedia 3 by Informant nor ChessBase Mobile Chess shows ads.

### Which is updated more often, Encyclopedia 3 by Informant or ChessBase Mobile Chess?

Encyclopedia 3 by Informant ships an update every 3 months, and ChessBase Mobile Chess every 3 months. Most recently, Encyclopedia 3 by Informant was updated on November 4, 2026 and ChessBase Mobile Chess on November 5, 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.*