Comparison

RetroGlass vs Sunadokei

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

Head to head
About

RetroGlass

Features
Read full description

RetroGlass turns time into a tiny piece of living art. A neon, pixel-perfect hourglass drains grain by grain on your screen, in real time. Flip it over to start, tap to pause, and let the falling sand pull your attention back to the present. No noise. No clutter. Just a calm, glowing timer that makes minutes feel good. FEATURES - Real pixel-sand physics: every grain falls on a wall-clock-accurate timer - Flip-to-start with a satisfying, tactile turn - Tap to pause and resume, double-tap to reset - Loop mode: the glass flips and restarts forever, with a turn counter - Optional on-screen countdown - Preset durations (1, 5, 10 minutes) plus your own custom lengths - Gorgeous neon color themes and an ambient glow that reacts as it runs - Designed for iPhone and iPad PERFECT FOR - Focus sessions, Pomodoro and deep work - Studying, writing and reading sprints - Tea, coffee and cooking timers - Breathing, meditation and winding down for sleep - A beautiful ambient centerpiece on your desk RetroGlass Premium (one-time purchase, no subscription) unlocks every color theme and unlimited custom durations. Buy once, keep forever. Turn time into art. Flip the glass and breathe.

About

Sunadokei

Features
Read full description

Sunadokei is a sand timer you can read at a glance. Pick a time and the falling sand shows how much is left, whether it is a study block, a short break, a workout set or something on the stove. When you would rather not watch numbers, switch to a sand-only view. • Nine hourglass shapes, all free. Start with four free seasonal sand colors. • Presets for 1, 3, 5, 10, 25 or 60 minutes, or set your own time. Pause and resume anytime. • Sand-only view while you focus. Add a short note when a timer finishes. • History and accumulated sand show the time you have put in. Home Screen widget included. Free with ads: a banner on the main screen and full-screen ads that may appear after finished timers. Sunadokei Pro is a one-time purchase, not a subscription: 10 more sand colors and no ads. See the purchase screen for the current price. Privacy Policy: https://kazusa703.github.io/privacy.html Terms of Use: https://kazusa703.github.io/terms.html Support: https://kazusa703.github.io/support.html

Screenshots

RetroGlass4 screens
Sunadokei3 screens

Verdict

The call

The clearest difference is ads: RetroGlass at none against Sunadokei's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. RetroGlass sells 1 one-off in-app purchase and Sunadokei sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
RetroGlass versus Sunadokei: the parameters behind the verdict, then further details
ParameterRetroGlassSunadokei
PriceFreeFree
Update frequency—Every 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS18.517.0 — better
Further details — not scored
Size2 MB12 MB
Age rating4+4+
DeveloperMeweyatsuko imai

In-app purchases

1 purchases

RetroGlass

One-time1
  • Premium$0.99
1 purchases

Sunadokei

One-time1
  • Sunadokei Pro$2.99

Questions

Is RetroGlass free?
RetroGlass is free to download, with in-app purchases available.
Is Sunadokei free?
Sunadokei is free to download, with in-app purchases available.
Do RetroGlass or Sunadokei have ads?
Sunadokei shows ads; RetroGlass does not.

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