# DigitalHourglass vs Hourglass

The clearest difference is update cadence: Hourglass at every 4 days against DigitalHourglass's every 4 months. 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.

DigitalHourglass ships an update every 4 months, Hourglass every 4 days. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DigitalHourglass | Hourglass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 5 MB | 27 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Takahashi](https://appshunter.io/developer/1713880270) | [kenji abe](https://appshunter.io/developer/1461779902) |

## What reviewers say

### DigitalHourglass

[App page](https://appshunter.io/ios/app/digitalhourglass/id6642703958)

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

**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 DigitalHourglass free?

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

### Is Hourglass free?

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

### Do DigitalHourglass or Hourglass have ads?

Both DigitalHourglass and Hourglass show ads.

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

DigitalHourglass ships an update every 4 months, and Hourglass every 4 days. Most recently, DigitalHourglass was updated on October 16, 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.*