# Document Portability vs ThemeDay

The clearest difference is in-app purchases: Document Portability at none against ThemeDay's 3. Document Portability also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). ThemeDay's advantage is update cadence (fortnightly vs every 4 months). On price and ads there is nothing between them.

Both are free to download. ThemeDay sells 3 in-app purchases, starting at $1.99 per 7 days. Document Portability asks for nothing beyond the download.

Document Portability ships an update every 4 months, ThemeDay fortnightly. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Document Portability | ThemeDay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 7 MB | 128 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | +4 | 9+ |
| Developer | [Primosoft Inc](https://appshunter.io/developer/638687289) | [APP TEAM](https://appshunter.io/developer/1892958531) |

## What reviewers say

### Document Portability

[App page](https://appshunter.io/ios/app/document-portability/id1632727176)

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

**In-app purchases:** none


### ThemeDay

[App page](https://appshunter.io/ios/app/themeday-theme-changer/id6762252126)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $6.99 | per month |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Document Portability free?

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

### Is ThemeDay free?

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

### Do Document Portability or ThemeDay have ads?

Both Document Portability and ThemeDay show ads.

### Which is updated more often, Document Portability or ThemeDay?

Document Portability ships an update every 4 months, and ThemeDay fortnightly. Most recently, Document Portability was updated on September 19, 2026 and ThemeDay on September 22, 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.*