Comparison

Watch Tracker vs OCEANUS Connected

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Watch Tracker

Easily track your wristwatch's accuracy against an atomic clock. This app measures and records time differences, displaying detailed graphs of your watch's performance. It's designed to be more accurate and simpler than traditional methods.

Highlights
  • Tracks wristwatch accuracy
  • Synchronizes with atomic clock
  • Measures and records time differences
  • Displays data graphs
  • Tracks multiple watches
  • Exports data to CSV
Features
Read full description

Watch Tracker is a revolutionary app for tracking the accuracy of a wristwatch. It's dramatically easier and more accurate than any previous method. Just tap a button when the time on your watch matches the time displayed by the app, and Watch Tracker does the rest. It synchronizes with an atomic clock, measures and records the difference, and displays graphs of all the data points you've recorded. - Uses best-fit analysis to accurately calculate how many seconds your watch gains or loses per day - Displays graphs of rates and variance - Can track multiple watches simultaneously - Saves data in CSV files that can be opened with any spreadsheet software Watch Tracker is made by the developer of tChess (the chess app that was featured in Apple's "Learn" commercial for the iPad) and Learn Chess (the Apple Staff Favorite e-book).

About

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.

Highlights
  • Bluetooth watch connectivity
  • Mobile Link functions
  • Simplified watch operations
  • User data transfer
  • Location services for time accuracy
Features
Read full description

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.

Screenshots

Watch Tracker4 screens
OCEANUS Connected2 screens

Verdict

The call

Watch Tracker and OCEANUS Connected both sit at 4.7 stars, but that hides the real split: 91% of Watch Tracker's written reviews are positive against 44% of OCEANUS Connected's. OCEANUS Connected's advantage is price (Free vs $4.99) and update cadence (every 2 months vs every 6 months). On rating, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

OCEANUS Connected is free to download; Watch Tracker costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Watch Tracker against 4.6 for OCEANUS Connected. Both are backed by a comparable volume of ratings — 322 and 119 respectively. Written reviews are what separate them: 91% of Watch Tracker's written reviews are positive against 44% of OCEANUS Connected's.

UpkeepUpdate frequency

Watch Tracker ships an update every 6 months, OCEANUS Connected every 2 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
Watch Tracker versus OCEANUS Connected: the parameters behind the verdict, then further details
ParameterWatch TrackerOCEANUS Connected
Price$4.99Free — better
Rating4.7 (322 ratings) — better4.6 (119 ratings)
Positive reviews91.2% of reviews — better44.4% of reviews
Number of ratings322 — better119
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS26.011.0 — better
Further details — not scored
Size1 MB222 MB
Age rating4+4+
DeveloperTom KerriganCASIO COMPUTER CO., LTD.

Customer experience

Watch Tracker

All ratings322 ratings
Positive93.2%
Neutral0.9%
Negative5.9%
Written reviews205 reviews
Positive91.2%
Neutral2.9%
Negative5.9%

OCEANUS Connected

All ratings119 ratings
Positive91.6%
Neutral2.5%
Negative5.9%
Written reviews45 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

Bugs and requests

Watch Tracker

Reported bugs

2 issues
  • Crashes when trying to add photos
  • Inconsistent time tracking results

Requested features

4 requests
  • Add more positional variance options
  • Implement cloud sync for data
  • Add more customization options
  • Improve support for newer iOS versions

OCEANUS Connected

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Watch Tracker

No in-app purchases

None

OCEANUS Connected

No in-app purchases

Questions

Is Watch Tracker free?
Watch Tracker costs $4.99, with no in-app purchases.
Is OCEANUS Connected free?
OCEANUS Connected is free to download, with no in-app purchases.
Which has better reviews, Watch Tracker or OCEANUS Connected?
Watch Tracker is rated higher. Watch Tracker averages 4.7 out of 5 from 322 ratings, while OCEANUS Connected averages 4.6 from 119 ratings.
Do Watch Tracker or OCEANUS Connected have ads?
Neither Watch Tracker nor OCEANUS Connected shows ads.
Which is updated more often, Watch Tracker or OCEANUS Connected?
Watch Tracker ships an update every 6 months, and OCEANUS Connected every 2 months. Most recently, Watch Tracker was updated on October 1, 2026 and OCEANUS Connected on October 2, 2026.

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