# OGS Notify vs ChessRiddle

The clearest difference is price: ChessRiddle at Free against OGS Notify's $0.99. ChessRiddle also leads on in-app purchases (none vs 2) and update cadence (every 6 weeks vs every 7 months). OGS Notify's advantage is iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

ChessRiddle is free to download; OGS Notify costs $0.99 up front. OGS Notify sells 2 one-off in-app purchases. ChessRiddle asks for nothing beyond the download.

OGS Notify ships an update every 7 months, ChessRiddle every 6 weeks. Both last shipped on October 13, 2026.

## The numbers

| Metric | OGS Notify | ChessRiddle |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.5 (6 ratings)](https://appshunter.io/ios/app/ogs-notify/id1236957859/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 9 MB | 98 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gunther Cronenberg](https://appshunter.io/developer/1202290979) | [Felix Andreas Beck](https://appshunter.io/developer/1879081669) |

## What reviewers say

### OGS Notify

[App page](https://appshunter.io/ios/app/ogs-notify/id1236957859)

Receive instant notifications for your Go games on online-go.com. This app helps you avoid timing out by alerting you to new moves, paused games, and the stone removal phase. It provides a quick overview of your current games and displays updated rankings.

**Highlights:** Push notifications for game moves, Today widget for game overview, Alerts for paused games and stone removal, Displays updated ranking system, Opens games in preferred browser

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Green tea for Gunther | $2.99 | one-time |
| Burrito for Gunther | $7.99 | one-time |


### ChessRiddle

[App page](https://appshunter.io/ios/app/chessriddle-chess-trainer/id6759503028)

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

**In-app purchases:** none


## Frequently asked questions

### Is OGS Notify free?

OGS Notify costs $0.99, and also offers in-app purchases.

### Is ChessRiddle free?

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

### Do OGS Notify or ChessRiddle have ads?

Neither OGS Notify nor ChessRiddle shows ads.

### Which is updated more often, OGS Notify or ChessRiddle?

OGS Notify ships an update every 7 months, and ChessRiddle every 6 weeks. Most recently, OGS Notify was updated on October 13, 2026 and ChessRiddle on October 13, 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.*