# EnviroSys vs Preserve

The clearest difference is update cadence: Preserve at every 2 months against EnviroSys's every 7 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.

EnviroSys ships an update every 7 months, Preserve every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | EnviroSys | Preserve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 20 MB | 10 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACQUIRE TECHNOLOGY SOLUTIONS PTY LTD](https://appshunter.io/developer/1348201049) | [QUARTEX SOFTWARE PTY LTD](https://appshunter.io/developer/813467626) |

## What reviewers say

### EnviroSys

[App page](https://appshunter.io/ios/app/envirosys/id1458359910)

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

**In-app purchases:** none


### Preserve

[App page](https://appshunter.io/ios/app/preserve/id6450415313)

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

**In-app purchases:** none


## Frequently asked questions

### Is EnviroSys free?

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

### Is Preserve free?

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

### Do EnviroSys or Preserve have ads?

Neither EnviroSys nor Preserve shows ads.

### Which is updated more often, EnviroSys or Preserve?

EnviroSys ships an update every 7 months, and Preserve every 2 months. Most recently, EnviroSys was updated on November 3, 2026 and Preserve on October 27, 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.*