# OCEANUS Connected vs AtomicClock

The clearest difference is review sentiment: AtomicClock at 85% against OCEANUS Connected's 44%. AtomicClock also leads on ratings volume (5.5K vs 119) and update cadence (every 3 weeks vs every 2 months). OCEANUS Connected's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

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

AtomicClock holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: AtomicClock has 5.5K ratings behind it against 119, so its average is the more settled of the two. Written reviews point the same way: 44% of OCEANUS Connected's written reviews are positive against 85% of AtomicClock's.

OCEANUS Connected ships an update every 2 months, AtomicClock every 3 weeks. The most recent releases landed on September 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | OCEANUS Connected | AtomicClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (119 ratings)](https://appshunter.io/ios/app/oceanus-connected/id1179979492/reviews) | **[4.8 (5.5K ratings)](https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049/reviews)** |
| Number of ratings | 119 | **5.5K** |
| Positive reviews | 44.4% of reviews | **84.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 222 MB | 17 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) | [Timo Partl](https://appshunter.io/developer/1387413672) |

## 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


### AtomicClock

[App page](https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049)

This app displays the exact current time synchronized with NTP servers, offering a customizable clock view for precise time checks. It's ideal for setting watches, verifying timestamps, or comparing local and network time.

**Highlights:** Precise time from NTP servers, Customizable clock faces, Select or add time servers, Local and UTC views, 12/24 hour modes, Customizable time format, Acoustic ticking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Version | $6.99 | one-time |

**What reviewers like**

- 🚀 Accurate time
- 👍 Highly customizable
- 🚀 Precise to the second
- 👍 Easy to use
- 👍 Helpful for setting watches

**What reviewers complain about**

- 🐛 Server connection issues
- 🔍 Limited time zone options
- 💰 Ads diminish clock view
- 🔍 Lacks some advanced features
- 🔍 Redundant for some users

**Reported bugs**

- Crashes on certain iOS versions
- Occasional freezing of hands
- Countdown timer sound not working

**Requested features**

- Add GMT/dual time display
- Implement widget support
- Add different second hand sounds
- Allow setting background color to match watch
- Include alarm/timer functionality


## Frequently asked questions

### Is OCEANUS Connected free?

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

### Is AtomicClock free?

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

### Which has better reviews, OCEANUS Connected or AtomicClock?

AtomicClock is rated higher. OCEANUS Connected averages 4.6 out of 5 from 119 ratings, while AtomicClock averages 4.8 from 5.5K ratings.

### Do OCEANUS Connected or AtomicClock have ads?

AtomicClock shows ads; OCEANUS Connected does not.

### Which is updated more often, OCEANUS Connected or AtomicClock?

OCEANUS Connected ships an update every 2 months, and AtomicClock every 3 weeks. Most recently, OCEANUS Connected was updated on September 9, 2026 and AtomicClock on September 29, 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.*