ClockArt vs Birthday List
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClockArt
This app presents a unique, abstract visualization of time using slowly rotating clock hands. Explore different hours by sliding your finger, with the clock returning to the current time upon release. It offers widgets and customizable layouts for a playful, artistic approach to timekeeping.
- Abstract clock hand visualization
- Interactive time exploration
- Home screen and StandBy widgets
- Circular and rectangular layouts
- Highlight relevant clock hands
- Haptic feedback
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This is a screen full of slowly rotating clock hands which, at a first glance, look randomly distributed. However, they are cleverly arranged such that for every full hour some of the hands line up to display the hour's digit. You may slide your finger down or up on the screen to move the time forward or backward to explore the other digits. The clock automatically switches back to the current time when you release the finger. Inspired by an installation of Christiaan Postma. FEATURES: - Home screen and StandBy widgets - Circular and classic (rectangular) layout of the clock hands - An option to highlight the relevant clock hands for easier reading of the time - Haptic feedback Don't expect it to be a useful clock. Just play around with the clock hands and have fun!
Birthday List
Organize your contacts' birthdays with this app. It highlights upcoming or recent birthdays within a 7-day window, making it easy to remember special dates. Keep track of important celebrations effortlessly.
- Birthday list from contacts
- Highlights birthdays within 7 days
- Upcoming birthday alerts
- Past birthday tracking
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List up the birth day list from Contacts who has birthday data. The day will be drawn in red which birth day will be or was with in 7 days.
Screenshots
Verdict
The clearest difference is rating: ClockArt at 5.0 against Birthday List's 2.5. ClockArt also leads on in-app purchases (none vs 1) and ads (none vs shown). Birthday List's advantage is update cadence (every 3 months vs every 33 months) and ratings volume (6 vs 1). On price, review sentiment 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. Birthday List sells 1 one-off in-app purchase. ClockArt asks for nothing beyond the download.
ClockArt holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Birthday List has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of ClockArt's written reviews are positive against 49% of Birthday List's.
ClockArt ships an update every 33 months, Birthday List every 3 months. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.
| Parameter | ClockArt | Birthday List |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.5 (6 ratings) |
| Positive reviews | 56.3% of reviews — better | 49.2% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 33 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | David Bannach | Shuji Fukumoto |
Customer experience
ClockArt
Birthday List
User reviews
ClockArt
From 1 App Store ratingsWhat we love
- 🎨 Unique artistic and creative concept
- 💰 Free application
- ✨ Visually interesting and engaging once understood
- 🎯 Well-developed and bug-free implementation
- 🧠 Intellectually stimulating puzzle to figure out
Room to improve
- 😕 Confusing and unclear purpose for many users
- ❌ Not practical as a functional clock
- ⏳ Steep learning curve to understand mechanics
- 🎭 Purely novelty with limited long-term utility
- 📱 Only shows hour, not minutes
Birthday List
From 6 App Store ratingsWhat we love
- 👍 Simple and intuitive user interface
- 🆓 Free app with no cost
- 📱 Syncs with existing contact information
- 🖼️ Displays contact photos alongside birthdays
- 📅 Organized monthly birthday list view
Room to improve
- 🐛 Crashes on iOS updates and new OS versions
- ❌ Cannot manually add birthdays directly in app
- 🔤 Language/localization issues (Japanese characters)
- 📊 Age calculation displays current age, not upcoming age
- 🚫 Blank cards/display issues on newer iOS versions
Bugs and requests
ClockArt
Reported bugs
3 issues- Sticks reset when finger is removed from screen
- Inconsistent display of current hour in some cases
- Small or buried display of time indicator at certain hours
Requested features
5 requests- Minute hand functionality with color differentiation
- More color options and customization
- Clear instructions or tutorial on how to use the app
- Additional settings and display options
- Better minute-level time accuracy
Birthday List
Reported bugs
12 issues- App crashes on launch after iOS updates
- Blank cards displaying no birthday information
- Birthday dates showing one day off from actual date
- App freezes and becomes unresponsive
- Contact photos erased after app updates
Show 7 moreShow fewer
- Groups not displaying or syncing properly
- Age calculation off by one year
- App won't open on iOS 6 and newer versions
- Spelling errors in month names (January, June)
- App not recognizing all contacts from address book
- Slow loading with 'looking for birthday' message
- Incompatibility with iCloud sync
Requested features
13 requests- Ability to manually add birthdays without contacts
- Push notifications and reminders for upcoming birthdays
- Customizable reminder timing (e.g., 2 weeks before)
- Group/category management for organizing contacts
- Anniversary tracking in addition to birthdays
Show 8 moreShow fewer
- App icon badge showing number of upcoming birthdays
- Start app view at current month instead of January
- Integration with social media (Facebook) for birthday sync
- Edit and modify birthdays within the app
- Show age person will be turning, not current age
- Add to calendar integration
- Customizable photo sizes and display options
- Support for children and non-contacts in birthday list
In-app purchases
ClockArt
No in-app purchases
Birthday List
- AD free$0.99
