CASIO WATCH+ vs Twelve O'clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CASIO WATCH+
Connect your compatible CASIO watch to your iPhone via Bluetooth to unlock enhanced Mobile Link functions. This application simplifies watch operations by allowing you to control them from your phone screen, enriching your overall experience.
- Bluetooth v4.0 connectivity
- Mobile Link functions
- Simplified watch operations
- iPhone integration
- Remote control via phone screen
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●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 CASIO WATCH+ app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900 http://www.edifice-watches.com/bs/ Applicable Watches: EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900, SHB-100, SHB-200 *Some watches unavailable in your region may be displayed in the application. Continued use of GPS running in the background can dramatically decrease battery life.
Twelve O'clock
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.
- Manage watch collection
- Add/edit/remove watches
- Include watch photos
- Track watch accuracy
- Calculate seconds per day
- View accuracy charts
- Horology content
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Twelve O’clock is an app that helps track your watch accuracy easily in a realistic way. I can’t stress this enough: it’s “tracking”, not measuring instantaneous accuracy like a timegrapher device. It’s a manual and oldschool job but it brings so much fun. It reminds me of the old days when I had to synchronize my watch to the clock on the TV at 7pm every day. With Twelve O'clock you can: ** MANAGE YOUR WATCH COLLECTION * Add, edit, remove any item in a list of your watch collection * Include a nice wristshot of each watch ** KNOW YOUR WATCH ACCURACY * Simply add some checkpoints and let the app calculate the accuracy in *second per day* * A nice chart of the accuracy over the time ** LEARN MORE ABOUT HOROLOGY * Curated content for watch lovers (like me)
Screenshots
Verdict
The clearest difference is review sentiment: Twelve O'clock at 91% against CASIO WATCH+'s 18%. Twelve O'clock also leads on rating (4.4 vs 2.9). CASIO WATCH+'s advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On price, ratings volume, update cadence and ads 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. Twelve O'clock sells 1 one-off in-app purchase. CASIO WATCH+ asks for nothing beyond the download.
Twelve O'clock holds the better App Store score, 4.4 against 2.9. Both are backed by a comparable volume of ratings — 44 and 83 respectively. Written reviews point the same way: 18% of CASIO WATCH+'s written reviews are positive against 91% of Twelve O'clock's.
CASIO WATCH+ ships an update monthly, Twelve O'clock every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | CASIO WATCH+ | Twelve O'clock |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (44 ratings) | 4.4 (83 ratings) — better |
| Positive reviews | 17.7% of reviews | 91.1% of reviews — better |
| Number of ratings | 44 | 83 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 69 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | Hieu Pham |
Customer experience
CASIO WATCH+
Twelve O'clock
User reviews
CASIO WATCH+
From 44 App Store ratingsWhat we love
- 👍 Works well with iPhone 6/6s
- 👍 Easy to use interface
- 👍 Able to sync watch settings
- 👍 Helpful support for clearing pairing info
Room to improve
- 🐛 Connectivity issues with newer iPhones
- 🐛 App crashes frequently
- 🐛 Fails to connect to watch
- 🐛 Unreliable Bluetooth connection
- 🐛 Time/date sync problems
Twelve O'clock
From 83 App Store ratingsWhat we love
- 👍 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
Room to improve
- 🐛 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
Bugs and requests
CASIO WATCH+
Reported bugs
4 issues- Compatibility issues with iOS updates
- Pairing problems with iPhone 6/6s/7
- Sync failures and connection drops
- Watch settings not transferring properly
Requested features
4 requests- Show watch battery status
- Add more world time cities
- Improve phone finder functionality
- Allow more control over alarms/timers
Twelve O'clock
Reported bugs
11 issues- 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
Show 6 moreShow fewer
- Beeping only works when phone not in silent mode
- Sort function not working
- Screenshot sharing produces blank page
- Calculation errors showing ~150 second variance
- Checkpoint history doesn't display correctly
- Swiping left to delete checkpoints not intuitive
Requested features
18 requests- 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
Show 13 moreShow fewer
- Wear frequency tracking
- Average accuracy by watch position
- Widget support
- Atomic clock built into app
- Regulator clock layout for time setting
- In-app feedback option (instead of Twitter)
- Automatic time reading from watch photos
- 12-hour time format option
- Sort function improvements
- Year display in checkpoint history
- Chrono24 account integration
- Regular article updates
- Export to Excel/CSV
In-app purchases
CASIO WATCH+
No in-app purchases
Twelve O'clock
- Twelve Plus$1.99
Questions
Is CASIO WATCH+ free?
Is Twelve O'clock free?
Which has better reviews, CASIO WATCH+ or Twelve O'clock?
Do CASIO WATCH+ or Twelve O'clock have ads?
Which is updated more often, CASIO WATCH+ or Twelve O'clock?
Other comparisons
