# ChessBased vs ChessFlow

The clearest difference is update cadence: ChessFlow at every 2 days against ChessBased's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ChessBased sells 1 one-off in-app purchase and ChessFlow sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ChessBased ships an update monthly, ChessFlow every 2 days. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ChessBased | ChessFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 86 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ENVISIONAIRY LLC](https://appshunter.io/developer/1605281065) | [Giorgio Donnoli](https://appshunter.io/developer/6777981338) |

## What reviewers say

### ChessBased

[App page](https://appshunter.io/ios/app/chessbased-stockfish-19/id6773557320)

Analyze chess openings with millions of games and advanced engine evaluations. Prepare like a grandmaster with a seamless interface, win-loss statistics, and move-by-move exploration. Save your favorite lines for later study on your iPhone or iPad.

**Highlights:** Millions of games database, Stockfish 18 engine evaluations, Win-loss statistics, Move-by-move exploration, Save favorite lines, Seamless UI

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessBased: Stockfish 18 | $4.99 | one-time |


### ChessFlow

[App page](https://appshunter.io/ios/app/chessflow/id6777981336)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessFlow Virtual | $4.99 | per month |
| ChessFlow Premium | $8.99 | per month |
| ChessFlow Virtual | $29.99 | per year |
| ChessFlow Premium | $49.99 | per year |


## Frequently asked questions

### Is ChessBased free?

ChessBased is free to download, with in-app purchases available.

### Is ChessFlow free?

ChessFlow is free to download, with in-app purchases available.

### Do ChessBased or ChessFlow have ads?

Neither ChessBased nor ChessFlow shows ads.

### Which is updated more often, ChessBased or ChessFlow?

ChessBased ships an update monthly, and ChessFlow every 2 days. Most recently, ChessBased was updated on September 13, 2026 and ChessFlow on September 19, 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.*