# OCEANUS Connected vs ChronoLog

OCEANUS Connected and ChronoLog both sit at 4.7 stars, but that hides the real split: 85% of ChronoLog's written reviews are positive against 43% of OCEANUS Connected's. ChronoLog also leads on update cadence (every 3 weeks vs every 2 months). OCEANUS Connected's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ChronoLog sells 2 one-off in-app purchases. OCEANUS Connected asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for OCEANUS Connected against 4.6 for ChronoLog. Both are backed by a comparable volume of ratings — 120 and 236 respectively. Written reviews are what separate them: 43% of OCEANUS Connected's written reviews are positive against 85% of ChronoLog's.

OCEANUS Connected ships an update every 2 months, ChronoLog every 3 weeks. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | OCEANUS Connected | ChronoLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (120 ratings)](https://appshunter.io/ios/app/oceanus-connected/id1179979492/reviews)** | [4.6 (236 ratings)](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510/reviews) |
| Number of ratings | 120 | **236** |
| Positive reviews | 43.5% of reviews | **85.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 222 MB | 50 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) | [tyler wood](https://appshunter.io/developer/1698739777) |

## 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


### ChronoLog

[App page](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510)

This app provides professional-grade tools to track the accuracy of mechanical watches. It offers audio timegraphing, photo offset measurement, and tap timing, along with detailed analytics and atomic time synchronization for collectors and enthusiasts.

**Highlights:** Audio timegrapher for rate, beat error, and amplitude, Photo offset measurement against atomic time, Tap timing for quick offset logging, Track accuracy trends over time, Atomic time synchronization, Detailed performance graphs and analytics, Manage and organize watch collection

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | one-time |
| Premium | $6.99 | one-time |


## Frequently asked questions

### Is OCEANUS Connected free?

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

### Is ChronoLog free?

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

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

OCEANUS Connected is rated higher. OCEANUS Connected averages 4.7 out of 5 from 120 ratings, while ChronoLog averages 4.6 from 236 ratings.

### Do OCEANUS Connected or ChronoLog have ads?

Neither OCEANUS Connected nor ChronoLog shows ads.

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

OCEANUS Connected ships an update every 2 months, and ChronoLog every 3 weeks. Most recently, OCEANUS Connected was updated on November 5, 2026 and ChronoLog on November 3, 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.*