# OCEANUS Connected vs Twelve O'clock

The clearest difference is review sentiment: Twelve O'clock at 91% against OCEANUS Connected's 44%. Twelve O'clock also leads on update cadence (every 3 weeks vs every 2 months). OCEANUS Connected's advantage is in-app purchases (none vs 1) and rating (4.6 vs 4.4). On price, ratings volume, ads and device support there is nothing between them.

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

OCEANUS Connected holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 119 and 82 respectively. Written reviews complicate that: 44% of OCEANUS Connected'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.

OCEANUS Connected ships an update every 2 months, Twelve O'clock every 3 weeks. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | OCEANUS Connected | Twelve O'clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (119 ratings)](https://appshunter.io/ios/app/oceanus-connected/id1179979492/reviews)** | [4.4 (82 ratings)](https://appshunter.io/ios/app/twelve-oclock/id1570977980/reviews) |
| Number of ratings | **119** | 82 |
| Positive reviews | 44.4% of reviews | **91.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 222 MB | 46 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [Hieu Pham](https://appshunter.io/developer/1570977982) |

## What reviewers say

### OCEANUS Connected

[App page](https://appshunter.io/ios/app/oceanus-connected/id1179979492)

This app connects your Bluetooth-enabled CASIO watch to your iPhone, enabling various Mobile Link functions. It simplifies watch operations and allows data transfer to the new CASIO WATCHES app. Requires iOS 14 or later and 'Always' location service permission.

**Highlights:** Bluetooth watch connectivity, Mobile Link functions, Simplified watch operations, User data transfer, Location services for time accuracy

**Features:** Vision Pro support

**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 OCEANUS Connected free?

OCEANUS Connected 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, OCEANUS Connected or Twelve O'clock?

OCEANUS Connected is rated higher. OCEANUS Connected averages 4.6 out of 5 from 119 ratings, while Twelve O'clock averages 4.4 from 82 ratings.

### Do OCEANUS Connected or Twelve O'clock have ads?

Neither OCEANUS Connected nor Twelve O'clock shows ads.

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

OCEANUS Connected ships an update every 2 months, and Twelve O'clock every 3 weeks. Most recently, OCEANUS Connected was updated on October 2, 2026 and Twelve O'clock on September 26, 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.*