# Checkmate IRL vs FlatWatch

The clearest difference is in-app purchases: FlatWatch at none against Checkmate IRL's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Checkmate IRL sells 2 in-app purchases, starting at $4.99 per month. FlatWatch asks for nothing beyond the download.

Checkmate IRL ships an update every 9 days, FlatWatch weekly. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Checkmate IRL | FlatWatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/checkmate-irl-chess-clock/id6754397876/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Freemium | — |
| Size | 56 MB | 28 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Lucas Schaubel](https://appshunter.io/developer/1848210840) | [IBRAHIM GAZALOGLU](https://appshunter.io/developer/6794220043) |

## What reviewers say

### Checkmate IRL

[App page](https://appshunter.io/ios/app/checkmate-irl-chess-clock/id6754397876)

This app acts as a digital chess clock that also records game results, tracks player ratings using the Glicko system, and helps you find nearby players and venues. It includes daily puzzles, streaks, and features for organizing clubs and tournaments.

**Highlights:** Digital chess clock with customizable time controls, Saves game results and player statistics, Glicko-based rating system, Daily chess puzzles, Find nearby players and chess venues, Create and manage chess clubs and tournaments, Shareable game result cards

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CheckmateIRL Pro | $4.99 | per month |
| CheckmateIRL Pro | $39.99 | per year |


### FlatWatch

[App page](https://appshunter.io/ios/app/flatwatch/id6794220041)

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

**In-app purchases:** none


## Frequently asked questions

### Is Checkmate IRL free?

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

### Is FlatWatch free?

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

### Do Checkmate IRL or FlatWatch have ads?

Neither Checkmate IRL nor FlatWatch shows ads.

### Which is updated more often, Checkmate IRL or FlatWatch?

Checkmate IRL ships an update every 9 days, and FlatWatch weekly. Most recently, Checkmate IRL was updated on September 13, 2026 and FlatWatch 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.*