Sunadokei vs Hourglass The Sand Timer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Sunadokei
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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
Hourglass The Sand Timer
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Watch real falling sand count your time. Hourglass simulates thousands of grains, and every grain is metered by the clock - the top bulb runs empty at the exact moment your timer ends, for any duration from 5 seconds to 24 hours. Hold it like the real thing. Gravity mode is on from the first launch: tilt your phone and the piles lean, slip and avalanche exactly like real sand - while the timer stays perfectly on time at any angle. ⢠Gravity mode: tilt your phone and the sand leans and avalanches like the real thing ⢠Beautiful glass hourglass with seven sand themes ⢠No buttons needed: turn your phone over to start the glass, and turn it over again when it runs out - just like the real thing ⢠Alarm-grade alerts, even after a reboot ⢠Zen mode: hide the digits, let the sand tell the time ⢠Timers library: save the durations you use most and build multi-phase sequences like Pomodoro or interval workouts that advance on their own ⢠Works offline, no account needed - your timers and settings stay on your device. ⢠Free with a small banner ad. One purchase removes it forever and unlocks every sand color.
Screenshots
Verdict
The clearest difference is in-app purchases: Hourglass The Sand Timer at none against Sunadokei's 1. Hourglass The Sand Timer also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads 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
Both are free to download. Sunadokei sells 1 one-off in-app purchase. Hourglass The Sand Timer asks for nothing beyond the download.
Sunadokei ships an update every 5 weeks, Hourglass The Sand Timer every 3 weeks. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.
| Parameter | Sunadokei | Hourglass The Sand Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 3 weeks ā better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No ā better |
| Devices | iPhone | iPhone, iPad, iPod ā better |
| Requires iOS | 17.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 12 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | atsuko imai | Michal Dobrzanski |
In-app purchases
Sunadokei
- Sunadokei Pro$2.99
Hourglass The Sand Timer
No in-app purchases
Questions
Is Sunadokei free?
Is Hourglass The Sand Timer free?
Do Sunadokei or Hourglass The Sand Timer have ads?
Which is updated more often, Sunadokei or Hourglass The Sand Timer?
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