# C4Timekeeper vs Tenku

The clearest difference is in-app purchases: Tenku at none against C4Timekeeper's 3. Tenku also leads on update cadence (every 3 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. C4Timekeeper sells 3 one-off in-app purchases. Tenku asks for nothing beyond the download.

C4Timekeeper ships an update every 2 months, Tenku every 3 days. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | C4Timekeeper | Tenku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 10 MB | 38 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Filippo Gozza](https://appshunter.io/developer/954580932) | [Juan Abanto](https://appshunter.io/developer/1508245606) |

## What reviewers say

### C4Timekeeper

[App page](https://appshunter.io/ios/app/c4timekeeper/id1003021684)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version for one month | $4.99 | one-time |
| Full version for 6 months | $8.99 | one-time |
| Full version for one year | $13.99 | one-time |


### Tenku

[App page](https://appshunter.io/ios/app/tenku/id6753092450)

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

**In-app purchases:** none


## Frequently asked questions

### Is C4Timekeeper free?

C4Timekeeper is free to download, with in-app purchases available.

### Is Tenku free?

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

### Do C4Timekeeper or Tenku have ads?

Neither C4Timekeeper nor Tenku shows ads.

### Which is updated more often, C4Timekeeper or Tenku?

C4Timekeeper ships an update every 2 months, and Tenku every 3 days. Most recently, C4Timekeeper was updated on September 21, 2026 and Tenku on September 9, 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.*