# Suming vs Blitz Chess Clock

The clearest difference is in-app purchases: Suming at none against Blitz Chess Clock's 3. Suming also leads on update cadence (every 2 weeks vs every 3 months). Blitz Chess Clock's advantage is ads (none vs shown) and iOS requirement (16.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Blitz Chess Clock sells 3 one-off in-app purchases. Suming asks for nothing beyond the download.

Suming ships an update every 2 weeks, Blitz Chess Clock every 3 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Suming | Blitz Chess Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (6 ratings)](https://appshunter.io/ios/app/blitz-chess-clock/id6450015123/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 81 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Toshko Neykov](https://appshunter.io/developer/813018060) | [Niklas Baudy](https://appshunter.io/developer/1543597939) |

## What reviewers say

### Suming

[App page](https://appshunter.io/ios/app/suming/id963492619)

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

**In-app purchases:** none


### Blitz Chess Clock

[App page](https://appshunter.io/ios/app/blitz-chess-clock/id6450015123)

This application functions as a versatile timer for playing chess and other board games. It supports various time control modes, allows for custom time settings per player, and offers theme customization for the timer interface.

**Highlights:** Multiple chess time control modes, Customizable time settings per player, User-created time modes, Customizable watch themes, Supports games like Go

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Themes | $1.99 | one-time |
| Remove ads | $2.99 | one-time |
| Premium - Unlock everything | $3.99 | one-time |


## Frequently asked questions

### Is Suming free?

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

### Is Blitz Chess Clock free?

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

### Do Suming or Blitz Chess Clock have ads?

Suming shows ads; Blitz Chess Clock does not.

### Which is updated more often, Suming or Blitz Chess Clock?

Suming ships an update every 2 weeks, and Blitz Chess Clock every 3 months. Most recently, Suming was updated on October 9, 2026 and Blitz Chess Clock on October 7, 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.*