# IC Secure vs Chess Clock

The clearest difference is in-app purchases: IC Secure at none against Chess Clock's 1. IC Secure also leads on device support (3 vs 1) and iOS requirement (14.7 vs 17.0). Chess Clock's advantage is update cadence (every 4 days vs every 2 months). On price and ads there is nothing between them.

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

IC Secure ships an update every 2 months, Chess Clock every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | IC Secure | Chess Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 96 MB | 3 MB |
| Requires iOS | **14.7** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ICRealtime LLC](https://appshunter.io/developer/371266663) | [James Vanderhaak](https://appshunter.io/developer/447016985) |

## What reviewers say

### IC Secure

[App page](https://appshunter.io/ios/app/ic-secure/id6758672669)

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

**In-app purchases:** none


### Chess Clock

[App page](https://appshunter.io/ios/app/chess-clock-knight-timer/id6809773223)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Clock Full Unlock | $5.99 | one-time |


## Frequently asked questions

### Is IC Secure free?

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

### Is Chess Clock free?

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

### Do IC Secure or Chess Clock have ads?

Neither IC Secure nor Chess Clock shows ads.

### Which is updated more often, IC Secure or Chess Clock?

IC Secure ships an update every 2 months, and Chess Clock every 4 days. Most recently, IC Secure was updated on October 25, 2026 and Chess Clock on October 31, 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.*