# Clock for Chess vs Powerful BMS

The clearest difference is in-app purchases: Powerful BMS at none against Clock for Chess's 1. Powerful BMS also leads on iOS requirement (15.6 vs 17.0). Clock for Chess's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Clock for Chess sells 1 one-off in-app purchase. Powerful BMS asks for nothing beyond the download.

Clock for Chess ships an update every 2 weeks, Powerful BMS every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Clock for Chess | Powerful BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 3 MB | 23 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kornel Miszczak](https://appshunter.io/developer/1542512370) | [Shenzhen Amoeba New Energy Co., Ltd.](https://appshunter.io/developer/978609032) |

## What reviewers say

### Clock for Chess

[App page](https://appshunter.io/ios/app/clock-for-chess/id6469359426)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $2.99 | one-time |


### Powerful BMS

[App page](https://appshunter.io/ios/app/powerful-bms-bussiness/id6471482461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Clock for Chess free?

Clock for Chess is free to download, with in-app purchases available.

### Is Powerful BMS free?

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

### Do Clock for Chess or Powerful BMS have ads?

Neither Clock for Chess nor Powerful BMS shows ads.

### Which is updated more often, Clock for Chess or Powerful BMS?

Clock for Chess ships an update every 2 weeks, and Powerful BMS every 2 months. Most recently, Clock for Chess was updated on November 3, 2026 and Powerful BMS on October 27, 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.*