# ChronoMaster vs C4Timekeeper

The clearest difference is price: C4Timekeeper at Free against ChronoMaster's $64.99. C4Timekeeper also leads on update cadence (every 2 months vs every 9 months). ChronoMaster's advantage is in-app purchases (none vs 3) and iOS requirement (9 vs 16.0). On ads and device support there is nothing between them.

C4Timekeeper is free to download; ChronoMaster costs $64.99 up front. C4Timekeeper sells 3 one-off in-app purchases. ChronoMaster asks for nothing beyond the download.

ChronoMaster ships an update every 9 months, C4Timekeeper every 2 months. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ChronoMaster | C4Timekeeper |
| --- | --- | --- |
| Price | $64.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 4 MB | 10 MB |
| Requires iOS | **9** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [BrandsOnSpeed GmbH](https://appshunter.io/developer/431537613) | [Filippo Gozza](https://appshunter.io/developer/954580932) |

## What reviewers say

### ChronoMaster

[App page](https://appshunter.io/ios/app/chronomaster/id431537610)

This app is designed for classic car rally pilots and co-pilots to precisely navigate complex special stages. It offers 1/100s second accuracy for timing and distance, with a graphical interface to manage interlaced stages, average speed controls, and countdown timers.

**Highlights:** 1/100s second precision timing, Graphical interface for complex stages, Acoustic countdown timer, Automatic average speed calculation, Transfer stage data from roadbook, Bilingual interface (English/German)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ChronoMaster free?

ChronoMaster costs $64.99, with no in-app purchases.

### Is C4Timekeeper free?

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

### Do ChronoMaster or C4Timekeeper have ads?

Neither ChronoMaster nor C4Timekeeper shows ads.

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

ChronoMaster ships an update every 9 months, and C4Timekeeper every 2 months. Most recently, ChronoMaster was updated on September 26, 2026 and C4Timekeeper on October 8, 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.*