# régulateur vs Fast Clock

The clearest difference is review sentiment: régulateur at 75% against Fast Clock's 25%. régulateur also leads on rating (4.6 vs 3.8). Fast Clock's advantage is update cadence (every 2 days vs every 11 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

régulateur holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 75% of régulateur's written reviews are positive against 25% of Fast Clock's.

régulateur ships an update every 11 months, Fast Clock every 2 days. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | régulateur | Fast Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/regulateur/id1550407692/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews) |
| Number of ratings | **12** | 5 |
| Positive reviews | **75.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric Kunz](https://appshunter.io/developer/919557120) | [Kevin Snow](https://appshunter.io/developer/305581830) |

## 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


### Fast Clock

[App page](https://appshunter.io/ios/app/fast-clock/id6448879724)

This application simulates a fast clock for model railroads. It allows for custom logos and maps, and can synchronize with external systems like JMRI or use real-time.

**Highlights:** Model railroad fast clock simulation, Custom logo support, Custom map integration, JMRI time synchronization, Real-time clock option

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

**In-app purchases:** none


## Frequently asked questions

### Is régulateur free?

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

### Is Fast Clock free?

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

### Which has better reviews, régulateur or Fast Clock?

régulateur is rated higher. régulateur averages 4.6 out of 5 from 12 ratings, while Fast Clock averages 3.8 from 5 ratings.

### Do régulateur or Fast Clock have ads?

Neither régulateur nor Fast Clock shows ads.

### Which is updated more often, régulateur or Fast Clock?

régulateur ships an update every 11 months, and Fast Clock every 2 days. Most recently, régulateur was updated on June 4, 2026 and Fast Clock on September 20, 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.*