# régulateur vs Twelve O'clock

The clearest difference is in-app purchases: régulateur at none against Twelve O'clock's 1. Twelve O'clock's advantage is update cadence (every 3 weeks vs every 11 months) and review sentiment (91% vs 75%). On price, rating, ads and device support there is nothing between them.

Both are free to download. Twelve O'clock sells 1 one-off in-app purchase. régulateur asks for nothing beyond the download.

régulateur holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Twelve O'clock has 82 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 75% of régulateur's written reviews are positive against 91% of Twelve O'clock's, so the app with the better star average is not the one people write more warmly about.

régulateur ships an update every 11 months, Twelve O'clock every 3 weeks. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | régulateur | Twelve O'clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/regulateur/id1550407692/reviews)** | [4.4 (82 ratings)](https://appshunter.io/ios/app/twelve-oclock/id1570977980/reviews) |
| Number of ratings | 12 | **82** |
| Positive reviews | 75.0% of reviews | **91.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 46 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Kunz](https://appshunter.io/developer/919557120) | [Hieu Pham](https://appshunter.io/developer/1570977982) |

## 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


### Twelve O'clock

[App page](https://appshunter.io/ios/app/twelve-oclock/id1570977980)

Easily track the accuracy of your mechanical watches over time. Manually log checkpoints to calculate seconds per day and visualize performance with charts. Manage your watch collection with photos and learn more about horology.

**Highlights:** Manage watch collection, Add/edit/remove watches, Include watch photos, Track watch accuracy, Calculate seconds per day, View accuracy charts, Horology content

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twelve Plus | $1.99 | one-time |

**What reviewers like**

- 👍 Intuitive and simple user interface
- 💰 Excellent value at $0.99 one-time purchase
- 🎯 Accurate watch accuracy tracking
- ⏱️ Flexible checkpoint timing (0, 15, 30, 45 seconds)
- 📊 Clear data visualization and graphs

**What reviewers complain about**

- 🐛 App freezes and crashes frequently
- 💾 Data loss after updates
- ⚠️ Free version severely limited (5 checkpoints only)
- 🔔 Silent mode prevents beeping sounds
- 🎯 Requires learning curve for some users

**Reported bugs**

- App freezes at loading requiring phone restart
- Data deletion after app updates
- Data loss on app crash
- Graph display glitches after checkpoints
- Photo checkpoint feature returns 'old photo not supported' error

**Requested features**

- iCloud/cloud synchronization across devices
- Notifications or reminders for checkpoints
- Current time button on checkpoint screen
- Larger buttons for 15/30/45 second marks
- Power reserve tracking


## Frequently asked questions

### Is régulateur free?

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

### Is Twelve O'clock free?

Twelve O'clock is free to download, with in-app purchases available.

### Which has better reviews, régulateur or Twelve O'clock?

régulateur is rated higher. régulateur averages 4.6 out of 5 from 12 ratings, while Twelve O'clock averages 4.4 from 82 ratings.

### Do régulateur or Twelve O'clock have ads?

Neither régulateur nor Twelve O'clock shows ads.

### Which is updated more often, régulateur or Twelve O'clock?

régulateur ships an update every 11 months, and Twelve O'clock every 3 weeks. Most recently, régulateur was updated on October 2, 2026 and Twelve O'clock on October 12, 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.*