Comparison

TetraClock vs Retrotick

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

Head to head
About

TetraClock

Features
Read full description

'TetraClock' is a clock app that represents the time by stacking seven types of single-sided tetromino-shaped blocks as they fall. The differences from the paid version are as follows: ・Contains ads ・No Watch App [How to Use] Tap the screen: Open the settings screen. Long press the screen: Stack the blocks again. [Main Features] - Switch between 12/24-hour display - Toggle seconds display ON/OFF - Monotone display - Fill in ON/OFF - Change outline color - Change transition animations - Change falling speed - Change background color [Notices] Due to the animation effect used for changing numbers, there may be a discrepancy between the displayed time and the actual time. Please do not use the displayed time as a basis for important decisions.

About

Retrotick

This app transforms your iPhone or iPad into a visually appealing split-flap clock, mimicking the mechanical flip of classic station displays. Enjoy authentic animations, customizable themes, and widgets for your Home and Lock Screens, all designed with a modern aesthetic.

Highlights
  • Authentic split-flap animation
  • Liquid Glass design
  • Home and Lock Screen widgets
  • Live Activities and Dynamic Island support
  • 12/24 hour format with optional seconds
  • Multiple digit fonts
  • Gallery of premium themes
Features
Read full description

Retrotick turns your iPhone and iPad into a beautiful split-flap clock, the satisfying mechanical flip of a classic station and bedside display, rebuilt for iOS with Apple's Liquid Glass design. Set it on your nightstand, your desk, or your Home and Lock Screens and watch the digits flip on every tick. FEATURES • Authentic split-flap animation that flips on every second • Liquid Glass design with clear, black, and white backdrops • Home Screen and Lock Screen widgets in multiple sizes • Live Activities and Dynamic Island to keep the time glanceable while you use other apps • 12- or 24-hour time, with optional seconds • Multiple digit fonts to match your style • A gallery of themes, from minimal to bold, with a free set to start • A countdown timer with a split-flap duration picker that rings through silent and Focus • Optional flip sound and haptics for the mechanical tick THEMES Unlock premium themes your way. Buy any theme once and keep it forever, or subscribe to Retrotick Plus to unlock every theme while your subscription is active. Preview any theme before you decide, and your purchases stay with your Apple ID. DESIGNED FOR iOS Built in SwiftUI for iOS 26, Retrotick looks right on every device size and adapts to portrait and landscape automatically. No accounts. No ads. No tracking. Just a gorgeous clock. Retrotick Plus is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. Terms of Use: https://makekamac.github.io/retrotick/terms/ Privacy Policy: https://makekamac.github.io/retrotick/privacy/

Screenshots

TetraClock3 screens
Retrotick3 screens

Verdict

The call

The clearest difference is in-app purchases: TetraClock at none against Retrotick's 7. TetraClock also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (14.0 vs 26.0). Retrotick's advantage is ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Retrotick sells 7 one-off in-app purchases. TetraClock asks for nothing beyond the download.

UpkeepUpdate frequency

TetraClock ships an update every 2 days, Retrotick every 3 weeks. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

Scorecard4 real differences · 6 level
TetraClock versus Retrotick: the parameters behind the verdict, then further details
ParameterTetraClockRetrotick
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better26.0
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperLegal Prompt Inc.Ekam Singh

In-app purchases

None

TetraClock

No in-app purchases

7 purchases

Retrotick

One-time7
  • Sunset Ember$1.99
  • Neon Dusk$1.99
  • Aurora$1.99
Show 4 more
  • Liquid Glass$1.99
  • Retro LCD$1.99
  • Synthwave$2.99
  • Gold Luxe$2.99

Questions

Is TetraClock free?
TetraClock is free to download, with no in-app purchases.
Is Retrotick free?
Retrotick is free to download, with in-app purchases available.
Do TetraClock or Retrotick have ads?
TetraClock shows ads; Retrotick does not.
Which is updated more often, TetraClock or Retrotick?
TetraClock ships an update every 2 days, and Retrotick every 3 weeks. Most recently, TetraClock was updated on September 17, 2026 and Retrotick on September 13, 2026.

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