# Eventrill vs Chess Clock Blitz

The clearest difference is in-app purchases: Eventrill at none against Chess Clock Blitz's 2. Chess Clock Blitz's advantage is update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chess Clock Blitz sells 2 in-app purchases, starting at $3.99 per month. Eventrill asks for nothing beyond the download.

Eventrill ships an update monthly, Chess Clock Blitz every 3 days. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Eventrill | Chess Clock Blitz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 22 MB | 60 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [builder access](https://appshunter.io/developer/1077634071) | [Kamil Podlasek](https://appshunter.io/developer/1608091233) |

## What reviewers say

### Eventrill

[App page](https://appshunter.io/ios/app/eventrill/id6737863104)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Eventrill free?

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

### Is Chess Clock Blitz free?

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

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

Neither Eventrill nor Chess Clock Blitz shows ads.

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

Eventrill ships an update monthly, and Chess Clock Blitz every 3 days. Most recently, Eventrill was updated on October 2, 2026 and Chess Clock Blitz on September 30, 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.*