OCEANUS Connected vs Timegrapher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OCEANUS Connected
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.
- Bluetooth watch connectivity
- Mobile Link functions
- Simplified watch operations
- User data transfer
- Location services for time accuracy
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Important - Please Read Request to Transfer to the CASIO WATCHES App (Support Termination Notification) The functionality of this app will be transferred to the new watch app, CASIO WATCHES. By updating to version 3.0, users of this app will be able to transfer their user data to CASIO WATCHES via this app. While we understand this may be inconvenient for some users, we ask that you transfer your data across, and continue using CASIO WATCHES in place of this app. ●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The OCEANUS Connected app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. http://www.casio-watches.com/oceanus/ We recommend using OCEANUS Connected on the following operating systems. Operation is not guaranteed for any operating system not listed below. Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation. ⋅ iOS 14 or later. Applicable Watches: OCW-G2000, OCW-S4000, OCW-T3000, OCW-T200, OCW-S5000, OCW-P2000, OCW-T4000 *Some watches unavailable in your region may be displayed in the application. This application uses location information to obtain accurate time. For "Location Service" in iPhone privacy settings, please "Always". If it is not "Always", the application will not work properly. Continued use of GPS running in the background can dramatically decrease battery life.
Timegrapher
This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.
- Detect BPH
- Measure Beat rate
- Measure Beat error
- Measure Amplitude
- Set Lift angle
- Real-time sound display
- Accuracy over time display
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What is Timegrapher? Timegrapher measures the accuracy of your mechanical watch. The app uses your device's microphone to detect the ticking of your watch. Features: Detect BPH Measure Beat rate Measure Beat error Measure Amplitude Set Lift angle Display beat noises real time (unlock, impulse and lock sounds) Display accuracy and beat error over time More features will be coming soon.
Screenshots
Verdict
The clearest difference is rating: OCEANUS Connected at 4.7 against Timegrapher's 2.8. OCEANUS Connected also leads on in-app purchases (none vs 1) and update cadence (every 2 months vs every 8 months). Timegrapher's advantage is review sentiment (55% vs 44%). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Timegrapher sells 1 one-off in-app purchase. OCEANUS Connected asks for nothing beyond the download.
OCEANUS Connected holds the better App Store score, 4.7 against 2.8. Both are backed by a comparable volume of ratings — 120 and 44 respectively. Written reviews complicate that: 44% of OCEANUS Connected's written reviews are positive against 55% of Timegrapher'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, Timegrapher every 8 months. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.
| Parameter | OCEANUS Connected | Timegrapher |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (120 ratings) — better | 2.8 (44 ratings) |
| Positive reviews | 44.4% of reviews | 55.0% of reviews — better |
| Number of ratings | 120 — better | 44 |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 222 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | Attila Lelko |
Customer experience
OCEANUS Connected
Timegrapher
Bugs and requests
OCEANUS Connected
Not enough reviews yet to summarise bugs or requests.
Timegrapher
Reported bugs
9 issues- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups
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- App magnetizes watch
- Does not work after paying for premium
- Amplitude reported as 360
- Inconsistent measurements
Requested features
5 requests- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version
In-app purchases
OCEANUS Connected
No in-app purchases
Timegrapher
- Unlock full$5.99
Questions
Is OCEANUS Connected free?
Is Timegrapher free?
Which has better reviews, OCEANUS Connected or Timegrapher?
Do OCEANUS Connected or Timegrapher have ads?
Which is updated more often, OCEANUS Connected or Timegrapher?
Other comparisons
