# régulateur vs ChronoLog

The clearest difference is in-app purchases: régulateur at none against ChronoLog's 2. ChronoLog's advantage is update cadence (every 3 weeks vs every 11 months) and ratings volume (204 vs 12). On price, rating, ads and device support there is nothing between them.

Both are free to download. ChronoLog sells 2 one-off in-app purchases. régulateur asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for régulateur against 4.6 for ChronoLog. That said, the two scores are not equally well evidenced: ChronoLog has 204 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 75% of régulateur's written reviews are positive against 85% of ChronoLog's.

régulateur ships an update every 11 months, ChronoLog every 3 weeks. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | régulateur | ChronoLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (12 ratings)](https://appshunter.io/ios/app/regulateur/id1550407692/reviews) | **[4.6 (204 ratings)](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510/reviews)** |
| Number of ratings | 12 | **204** |
| Positive reviews | 75.0% of reviews | **84.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 1 MB | 49 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Kunz](https://appshunter.io/developer/919557120) | [tyler wood](https://appshunter.io/developer/1698739777) |

## What reviewers say

### régulateur

[App page](https://appshunter.io/ios/app/regulateur/id1550407692)

This utility app assists with setting watches and clocks. It displays a second time zone, current moon phase, and detailed perpetual calendar information including the leap year cycle.

**Highlights:** Second time zone display, Current moon phase, Perpetual calendar details, Leap year cycle information, Watch and clock setting assistance

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is régulateur free?

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

### Is ChronoLog free?

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

### Which has better reviews, régulateur or ChronoLog?

ChronoLog is rated higher. régulateur averages 4.6 out of 5 from 12 ratings, while ChronoLog averages 4.6 from 204 ratings.

### Do régulateur or ChronoLog have ads?

Neither régulateur nor ChronoLog shows ads.

### Which is updated more often, régulateur or ChronoLog?

régulateur ships an update every 11 months, and ChronoLog every 3 weeks. Most recently, régulateur was updated on October 2, 2026 and ChronoLog on October 17, 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.*