# Sandglass3 vs Hourglass

The clearest difference is update cadence: Hourglass at every 4 days against Sandglass3's every 8 months. Sandglass3's advantage is iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Sandglass3 ships an update every 8 months, Hourglass every 4 days. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sandglass3 | Hourglass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (11 ratings)](https://appshunter.io/ios/app/sandglass3/id386488183/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 43.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 43 MB | 27 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Keietsu Yasuhara](https://appshunter.io/developer/378538320) | [kenji abe](https://appshunter.io/developer/1461779902) |

## What reviewers say

### Sandglass3

[App page](https://appshunter.io/ios/app/sandglass3/id386488183)

This app simulates a realistic hourglass with customizable timer durations. Users can flip the hourglass by swiping or rotating their device. It offers optional sound alerts and automatic rotation upon completion.

**Highlights:** Realistic hourglass simulation, 1, 3, and 6-minute timers, Swipe to flip hourglass, Rotate device to flip, Chime alert on completion, Automatic rotation option

**Features:** macOS Compatibility

**In-app purchases:** none


### Hourglass

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Sandglass3 free?

Sandglass3 is free to download, with no in-app purchases.

### Is Hourglass free?

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

### Do Sandglass3 or Hourglass have ads?

Both Sandglass3 and Hourglass show ads.

### Which is updated more often, Sandglass3 or Hourglass?

Sandglass3 ships an update every 8 months, and Hourglass every 4 days. Most recently, Sandglass3 was updated on October 23, 2026 and Hourglass on October 19, 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.*