Hourglass vs Fill
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Hourglass
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This is an approximately 3-minute hourglass that uses physics simulation to recreate realistic movements. You can enjoy watching the grains of sand smoothly fall under natural gravity while keeping track of time. With a simple and intuitive design, it's an ideal tool for meditation or improving focus. When the gyroscope sensor is enabled, the movement of the sand adjusts in real-time according to the tilt of your device. Each session offers a different atmosphere, allowing you to relax and experience the comforting analog feel within a digital space.
Fill
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Fill-Timer isn't just a countdown it makes time something you can actually see. Start a timer and watch the hourglass slowly fill up. Seasonal particles drift across your screen. When time's up, a gentle chime brings you back. Simple. Intentional. Calming. Timer โข Intuitive dial interface โ spin to set your time in seconds โข Animated hourglass โ sand grains fall and pile up as time passes โข Push notification when timer ends, even when the app is in the background โข Multiple alert sounds to choose from Seasonal Themes โข Spring: soft cherry blossom petals โข Summer: clear raindrops sliding down โข Autumn: drifting maple leaves and pumpkin season โข Winter: pure white snowflakes Premium Themes Unlock exclusive themes including Candy Cane, Soccer, Carnation, Colour Ball and more. Go ad-free and make Fill-Timer your own personal time space. Life Clock Enter your birthday and see how many seasons you have left. Not to create anxiety โ but to remind you to savour them. Available in English, Traditional Chinese, Simplified Chinese, Japanese, Korean, French and Spanish.
Screenshots
Verdict
The clearest difference is in-app purchases: Hourglass at none against Fill's 3. Fill's advantage is ads (none vs shown) and update cadence (daily vs every 4 days). On price, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Fill sells 3 one-off in-app purchases. Hourglass asks for nothing beyond the download.
Hourglass ships an update every 4 days, Fill daily. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.
| Parameter | Hourglass | Fill |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | Daily โ better |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 โ better | 16.6 |
| Further details โ not scored | ||
| Size | 33 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | kenji abe | Cheng Hung Lo |
In-app purchases
Hourglass
No in-app purchases
Fill
- Remove Ads$1.99
- Premium Scenes$1.99
- Bundle Package$2.99









