# Hourglass vs Oil Timer

The clearest difference is update cadence: Hourglass at every 4 days against Oil Timer's every 7 months. Hourglass also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hourglass ships an update every 4 days, Oil Timer every 7 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Hourglass | Oil Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | **Every 4 days** | Every 7 months |
| Size | 27 MB | 53 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [kenji abe](https://appshunter.io/developer/1461779902) | [Focaccia, Inc.](https://appshunter.io/developer/1689143851) |

## What reviewers say

### Hourglass

[App page](https://appshunter.io/ios/app/hourglass-physics-simulation/id6670490622)

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

**In-app purchases:** none


### Oil Timer

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

**In-app purchases:** none


## Frequently asked questions

### Is Hourglass free?

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

### Is Oil Timer free?

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

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

Hourglass ships an update every 4 days, and Oil Timer every 7 months. Most recently, Hourglass was updated on November 4, 2026 and Oil Timer on October 31, 2026.

---

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