# Twelve O'clock vs TimeWave

Twelve O'clock and TimeWave both sit at 4.4 stars, but that hides the real split: 91% of Twelve O'clock's written reviews are positive against 0% of TimeWave's. Twelve O'clock also leads on ratings volume (83 vs 18). TimeWave's advantage is monetization model (free vs free with in-app purchases) and update cadence (weekly vs every 3 weeks). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Twelve O'clock sells 1 one-off in-app purchase and TimeWave sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Twelve O'clock against 4.4 for TimeWave. Both are backed by a comparable volume of ratings — 83 and 18 respectively. Written reviews are what separate them: 91% of Twelve O'clock's written reviews are positive against 0% of TimeWave's.

Twelve O'clock ships an update every 3 weeks, TimeWave weekly. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Twelve O'clock | TimeWave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (83 ratings)](https://appshunter.io/ios/app/twelve-oclock/id1570977980/reviews) | **[4.4 (18 ratings)](https://appshunter.io/ios/app/timewave-atomic-watch-sync/id6779167516/reviews)** |
| Number of ratings | **83** | 18 |
| Positive reviews | **91.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hieu Pham](https://appshunter.io/developer/1570977982) | [毅 何](https://appshunter.io/developer/1477138542) |

## What reviewers say

### 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


### TimeWave

[App page](https://appshunter.io/ios/app/timewave-atomic-watch-sync/id6779167516)

This app simulates radio-controlled clock signals to help your watch synchronize its time when terrestrial signals are unavailable. It offers guides for popular watch brands and checks environmental conditions before transmission.

**Highlights:** Radio-controlled clock signal simulation, Support for multiple international time signals, Environment pre-check and recommendations, Smart output tuning for various audio paths, Local time mode for overseas watches, Watch-specific synchronization guides, Live signal visualization and sync history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| Lifetime Membership | $3.99 | one-time |


## Frequently asked questions

### Is Twelve O'clock free?

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

### Is TimeWave free?

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

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

TimeWave is rated higher. Twelve O'clock averages 4.4 out of 5 from 83 ratings, while TimeWave averages 4.4 from 18 ratings.

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

Neither Twelve O'clock nor TimeWave shows ads.

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

Twelve O'clock ships an update every 3 weeks, and TimeWave weekly. Most recently, Twelve O'clock was updated on October 21, 2026 and TimeWave 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.*