Comparison

Fullscreen Clock vs UltraBoard

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

Head to head
About

Fullscreen Clock

Transform your device into a stylish flip clock that doubles as a productivity tool. Enhance your workspace with aesthetic widgets and utilize the integrated focus timer for improved concentration during study or work sessions.

Highlights
  • Iconic flip clock animation
  • Deep focus timer (Pomodoro/custom)
  • Stunning home screen widgets
  • Elegant and minimalist interface
  • Extensive customization options
  • Versatile timers and stopwatch
  • Floating clock for iPadOS
Features
Read full description

It's not just a clock. It's a statement piece. Transform your device into a stunning Flip Clock, the perfect centerpiece for your desk setup. More than just aesthetics, it's a powerful tool designed to help you focus, study, and seize every second. BEAUTY MEETS PRODUCTIVITY We believe your most personal device deserves more than a boring clock. Fullscreen Clock combines minimalist design with powerful productivity features to create an experience that is both beautiful and functional. ICONIC FLIP CLOCK: Enjoy the satisfying, classic animation of a retro flip clock, reborn with a modern, clean design. It's the ultimate accessory for your Gong-stagram study sessions and aesthetic workspace photos. DEEP FOCUS TIMER: Crush your goals with our integrated focus timer. Use the Pomodoro Technique or set custom sessions to improve concentration during study, work, or meditation. STUNNING WIDGETS: Your clock shouldn't be trapped inside an app. Add our beautifully designed widgets to your Home Screen for an instant, stylish time check. FEATURES YOU'LL LOVE: Elegant & Minimalist Interface: A clean, distraction-free design that puts the focus on time. Extensive Customization: Personalize your clock with different themes, sizes, and even your own background photos. Versatile Timers & Stopwatch: From a simple countdown to a precision stopwatch, we have all your timing needs covered. Floating Clock (iPadOS): Keep track of time with a clock that floats above your other apps – perfect for multitasking.

About

UltraBoard

Create and organize digital notes and boards using your Apple Pencil, stylus, or finger. Customize line color and width, and save your creations into categorized folders. This app offers a subscription for enhanced features.

Highlights
  • Digital whiteboard and blackboard
  • Apple Pencil, stylus, and finger input
  • Customizable line color and width
  • Save and categorize notes/boards
  • Folder organization
Features
Read full description

This is WhiteBoard & BlackBoard, ChalkBoard App. Please touch the screen with Apple Pencil, stylus pen or your finger. - For iPad: Apple Pencil, stylus pen and your finger - For iPhone: Stylus pen & your finger *You can change the line color with buttons and the line width with slider. *You can save and categorize(make folder for) each note/board. Auto-renewal Subscription: *UltraBoard offers an auto-renewal subscription of $8.99/month. *Payment will be charged to iTunes Account at confirmation of purchase. *Subscription automatically renews unless auto-renewal is turned off at least 24-hours before the end of the current period. *Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. *Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. *Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. *Current subscription may not be canceled during an active subscription period. *You have also cancel your subscription at following web address: https://support.apple.com/en-us/HT202039 Privacy Policy : http://www.lisfee.com/privacy-policy.html Terms and Conditions : http://www.lisfee.com/about-rule.html

Screenshots

Fullscreen Clock4 screens
UltraBoard1 screens

Verdict

The call

The clearest difference is monetization model: Fullscreen Clock at free with in-app purchases against UltraBoard's subscription. Fullscreen Clock also leads on rating (4.7 vs 4.5) and ratings volume (2.2K vs 190). UltraBoard's advantage is update cadence (every 2 days vs every 9 days) and iOS requirement (11.0 vs 15.0). On price, review sentiment, 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

Both are free to download. Fullscreen Clock sells 1 one-off in-app purchase and UltraBoard sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fullscreen Clock holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Fullscreen Clock has 2.2K ratings behind it against 190, so its average is the more settled of the two. Written reviews complicate that: 76% of Fullscreen Clock's written reviews are positive against 80% of UltraBoard's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Fullscreen Clock ships an update every 9 days, UltraBoard every 2 days. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
Fullscreen Clock versus UltraBoard: the parameters behind the verdict, then further details
ParameterFullscreen ClockUltraBoard
PriceFreeFree
Rating4.7 (2.2K ratings) — better4.5 (190 ratings)
Positive reviews76.0% of reviews80.0% of reviews — better
Number of ratings2.2K — better190
Update frequencyEvery 9 daysEvery 2 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size18 MB73 MB
Age rating4+4+
DeveloperShenzhen Gude Aipu Technology Co., LtdLisfee, Inc.

Customer experience

Fullscreen Clock

All ratings2,201 ratings
Positive93.3%
Neutral2.7%
Negative4.0%
Written reviews246 reviews
Positive76.0%
Neutral8.5%
Negative15.4%

UltraBoard

All ratings190 ratings
Positive86.8%
Neutral6.3%
Negative6.8%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

Fullscreen Clock

Reported bugs

4 issues
  • Widget doesn't adjust for DST
  • Clock resets when exiting app
  • Hangs up on some devices
  • Ads cover the clock

Requested features

5 requests
  • Add color customization
  • Integrate date display
  • Add 12-hour time format with AM/PM
  • Improve countdown timer functionality
  • Add stopwatch widget

UltraBoard

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Fullscreen Clock

One-time1
  • VIP$2.99
1 purchases

UltraBoard

Subscriptions1
  • Gold Plan$8.991 Month

Questions

Is Fullscreen Clock free?
Fullscreen Clock is free to download, with in-app purchases available.
Is UltraBoard free?
UltraBoard is free to download, with in-app purchases available.
Which has better reviews, Fullscreen Clock or UltraBoard?
Fullscreen Clock is rated higher. Fullscreen Clock averages 4.7 out of 5 from 2.2K ratings, while UltraBoard averages 4.5 from 190 ratings.
Do Fullscreen Clock or UltraBoard have ads?
Both Fullscreen Clock and UltraBoard show ads.
Which is updated more often, Fullscreen Clock or UltraBoard?
Fullscreen Clock ships an update every 9 days, and UltraBoard every 2 days. Most recently, Fullscreen Clock was updated on October 18, 2026 and UltraBoard on October 14, 2026.

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