# Open vs Tempus

The clearest difference is in-app purchases: Open at none against Tempus's 2. Open also leads on iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Tempus sells 2 in-app purchases, starting at $3.99 per month. Open asks for nothing beyond the download.

## The numbers

| Metric | Open | Tempus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 37 MB | 17 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Ryan Crabbe](https://appshunter.io/developer/1843293744) | [Sofronie Albu](https://appshunter.io/developer/1895824197) |

## What reviewers say

### Open

[App page](https://appshunter.io/ios/app/open-habit/id6757945751)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tempus

[App page](https://appshunter.io/ios/app/tempus-habit-tracker/id6764538304)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tempus Pro | $3.99 | per month |
| Tempus Pro | $24.99 | per year |


## Frequently asked questions

### Is Open free?

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

### Is Tempus free?

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

### Do Open or Tempus have ads?

Neither Open nor Tempus shows ads.

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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.*