# Chess Clock Blitz vs DuelTempo

The clearest difference is update cadence: Chess Clock Blitz at every 3 days against DuelTempo's every 3 weeks. Chess Clock Blitz also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Chess Clock Blitz sells 2 in-app purchases, starting at $3.99 per month and DuelTempo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Chess Clock Blitz ships an update every 3 days, DuelTempo every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Chess Clock Blitz | DuelTempo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chess-clock-blitz/id6774277034/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 60 MB | 13 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Kamil Podlasek](https://appshunter.io/developer/1608091233) | [Pomisoft OÜ](https://appshunter.io/developer/1865030822) |

## What reviewers say

### Chess Clock Blitz

[App page](https://appshunter.io/ios/app/chess-clock-blitz/id6774277034)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Premium | $29.99 | per year |


### DuelTempo

[App page](https://appshunter.io/ios/app/dueltempo-chess-clock/id6789544055)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DuelTempo Pro — Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Chess Clock Blitz free?

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

### Is DuelTempo free?

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

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

Neither Chess Clock Blitz nor DuelTempo shows ads.

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

Chess Clock Blitz ships an update every 3 days, and DuelTempo every 3 weeks. Most recently, Chess Clock Blitz was updated on October 24, 2026 and DuelTempo on October 24, 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.*