# Sunadokei vs Fill

The clearest difference is ads: Fill at none against Sunadokei's shown. Fill also leads on update cadence (daily vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Sunadokei sells 1 one-off in-app purchase and Fill sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sunadokei ships an update every 2 months, Fill daily. The most recent releases landed on September 10, 2026 and June 20, 2026 respectively.

## The numbers

| Metric | Sunadokei | Fill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Size | 11 MB | 26 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [atsuko imai](https://appshunter.io/developer/1830783417) | [Cheng Hung Lo](https://appshunter.io/developer/1896510744) |

## What reviewers say

### Sunadokei

[App page](https://appshunter.io/ios/app/sunadokei-sand-timer/id6762150420)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

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


### Fill

[App page](https://appshunter.io/ios/app/fill-timer/id6767813234)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Premium Scenes | $1.99 | one-time |
| Bundle Package | $2.99 | one-time |


## Frequently asked questions

### Is Sunadokei free?

Sunadokei is free to download, with in-app purchases available.

### Is Fill free?

Fill is free to download, with in-app purchases available.

### Do Sunadokei or Fill have ads?

Sunadokei shows ads; Fill does not.

### Which is updated more often, Sunadokei or Fill?

Sunadokei ships an update every 2 months, and Fill daily. Most recently, Sunadokei was updated on September 10, 2026 and Fill on June 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*