# Oil Timer vs Fill

The clearest difference is in-app purchases: Oil Timer at none against Fill's 3. Fill's advantage is update cadence (daily vs every 7 months) and device support. On price and iOS requirement there is nothing between them.

Both are free to download. Fill sells 3 one-off in-app purchases. Oil Timer asks for nothing beyond the download.

Oil Timer ships an update every 7 months, Fill daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Oil Timer | Fill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 7 months | **Daily** |
| Size | 53 MB | 25 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Focaccia, Inc.](https://appshunter.io/developer/1689143851) | [Cheng Hung Lo](https://appshunter.io/developer/1896510744) |

## What reviewers say

### Oil Timer

[App page](https://appshunter.io/ios/app/oil-timer-focus-and-relax/id6760693832)

**In-app purchases:** none


### Fill

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

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

**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 Oil Timer free?

Oil Timer is free to download, with no in-app purchases.

### Is Fill free?

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

### Which is updated more often, Oil Timer or Fill?

Oil Timer ships an update every 7 months, and Fill daily. Most recently, Oil Timer was updated on October 24, 2026 and Fill on October 24, 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.*