# ChronoLog vs Pocket Docket

The clearest difference is update cadence: ChronoLog at every 3 weeks against Pocket Docket's every 6 weeks. ChronoLog also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ChronoLog sells 2 one-off in-app purchases and Pocket Docket sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ChronoLog ships an update every 3 weeks, Pocket Docket every 6 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ChronoLog | Pocket Docket |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (233 ratings)](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510/reviews)** | — |
| Number of ratings | **233** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Paid | — |
| Size | 50 MB | 3 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tyler wood](https://appshunter.io/developer/1698739777) | [Lucas Azzopardi](https://appshunter.io/developer/1016502678) |

## What reviewers say

### ChronoLog

[App page](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510)

This app provides professional-grade tools to track the accuracy of mechanical watches. It offers audio timegraphing, photo offset measurement, and tap timing, along with detailed analytics and atomic time synchronization for collectors and enthusiasts.

**Highlights:** Audio timegrapher for rate, beat error, and amplitude, Photo offset measurement against atomic time, Tap timing for quick offset logging, Track accuracy trends over time, Atomic time synchronization, Detailed performance graphs and analytics, Manage and organize watch collection

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | one-time |
| Premium | $6.99 | one-time |


### Pocket Docket

[App page](https://appshunter.io/ios/app/pocket-docket-time-tracker/id6785915346)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $9.99 | one-time |


## Frequently asked questions

### Is ChronoLog free?

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

### Is Pocket Docket free?

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

### Do ChronoLog or Pocket Docket have ads?

Neither ChronoLog nor Pocket Docket shows ads.

### Which is updated more often, ChronoLog or Pocket Docket?

ChronoLog ships an update every 3 weeks, and Pocket Docket every 6 weeks. Most recently, ChronoLog was updated on October 30, 2026 and Pocket Docket on October 28, 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.*