# PreservADE vs Theiserver3

The clearest difference is update cadence: Theiserver3 at every 3 weeks against PreservADE's every 2 months. Theiserver3 also leads on iOS requirement (12.0 vs 15.0). 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.

PreservADE ships an update every 2 months, Theiserver3 every 3 weeks. The most recent releases landed on September 8, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | PreservADE | Theiserver3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 23 MB | 35 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ADEvantage Technology, Inc.](https://appshunter.io/developer/979694968) | [Rob Dayton](https://appshunter.io/developer/377878279) |

## What reviewers say

### PreservADE

[App page](https://appshunter.io/ios/app/preservade/id1394686643)

**In-app purchases:** none


### Theiserver3

[App page](https://appshunter.io/ios/app/theiserver3/id6480457480)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PreservADE free?

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

### Is Theiserver3 free?

Theiserver3 is free to download, with no in-app purchases.

### Do PreservADE or Theiserver3 have ads?

Neither PreservADE nor Theiserver3 shows ads.

### Which is updated more often, PreservADE or Theiserver3?

PreservADE ships an update every 2 months, and Theiserver3 every 3 weeks. Most recently, PreservADE was updated on September 8, 2026 and Theiserver3 on June 5, 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.*