# Sunadokei: Sand Timer — Tilt to flow, flip to start

> Tilt to flow, flip to start (iPhone/iPad app by atsuko imai.)

- Source: https://appshunter.io/ios/app/sunadokei-sand-timer/id6762150420 (this page in markdown: same URL + `.md`)
- Developer: [atsuko imai](https://appshunter.io/developer/1830783417)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 11 MB
- Languages: American English, Arabic, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French (France), German (Germany) and 21 more
- Released: 2026-04-14
- Data updated: 2026-06-25
- User reviews in markdown: https://appshunter.io/ios/app/sunadokei-sand-timer/id6762150420/reviews.md

## What is Sunadokei?

Tilt your phone and watch the sand flow with gravity.
Flip it over to start the timer.

Sunadokei is a timer app that lets you feel time.

Instead of a digital countdown, you see sand grains falling one by one, giving you an intuitive sense of how much time remains. Powered by SpriteKit physics and CoreMotion tilt detection, it delivers the tactile feel of a real hourglass.

Realistic Sand Physics
Tilt your phone and sand flows with gravity. Shake sideways and it ripples.

One-Tap Quick Start
1, 3, 5, 10, 25, or 60-minute presets. Custom durations also available.

Time-of-Day Backgrounds
Morning orange, midday sky blue, evening sunset, nighttime indigo.

Seasonal Sand Colors
Cherry blossom in spring, aqua in summer, amber in autumn, silver in winter.

Focus Tracking
Today's focus time, daily streak, weekly chart. Visualize your total sand.

Sunadokei Pro (one-time)
14 sand colors / 4 frames / 3 glass textures / unlimited presets / no ads

Widget Support
Place a mini hourglass on your home screen.

Pause & Resume
Pause and resume any timer at any time.

Privacy Policy: https://kazusa703.github.io/privacy.html
Terms of Use: https://kazusa703.github.io/terms.html
Support: https://kazusa703.github.io/support.html

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Sunadokei Pro | $2.99 | one-time |



## Version history (last 2 releases)

### 1.2.0 — 2026-06-09

Many more hourglass styles to make it your own.
- 8 frames × 7 glass finishes = 56 combinations for your personal hourglass
- Rebuilt glass reflections and refraction, with more realistic sand grain
- The “sand you’ve poured” beach now looks like real layered sand
- The onboarding hourglass now matches the main screen
- New option to change the sand color automatically with the seasons
- Various refinements and stability improvements
Your own hourglass, for a quieter moment.

### 1.0 — 2026-04-14

No release notes.

## More apps by atsuko imai

- [キーワードメモー忘れる、を価値に変える](https://appshunter.io/ios/app/id6749497390)
- [aikotoba3](https://appshunter.io/ios/app/aikotoba3/id6757985811)
- [PersonalRhythm](https://appshunter.io/ios/app/personalrhythm/id6758055088)
- [Kyokun — Lessons from Mistakes](https://appshunter.io/ios/app/kyokun-lessons-from-mistakes/id6758373650)
- [Tapku - Tap Counter](https://appshunter.io/ios/app/tapku-tap-counter/id6758854299)
- [Soko - Place-Based Tasks](https://appshunter.io/ios/app/soko-place-based-tasks/id6758879585)

All apps by atsuko imai: https://appshunter.io/developer/1830783417

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*