# STABILITY LABORATORY vs Legacy Env Lab

The clearest difference is update cadence: Legacy Env Lab at every 3 weeks against STABILITY LABORATORY's every 3 months. STABILITY LABORATORY's advantage is iOS requirement (13.0 vs 15.1). 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.

STABILITY LABORATORY ships an update every 3 months, Legacy Env Lab every 3 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | STABILITY LABORATORY | Legacy Env Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 47 MB | 24 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ESTABLISHMENT NAGM-AD-DIN AL-TUSMIM FOR INFORMATION TECHNOLOGY](https://appshunter.io/developer/1507017588) | [Legacy Environmental Laboratory, LLC](https://appshunter.io/developer/1809398913) |

## What reviewers say

### STABILITY LABORATORY

[App page](https://appshunter.io/ios/app/stability-laboratory/id6502569167)

**Features:** macOS Compatibility

**In-app purchases:** none


### Legacy Env Lab

[App page](https://appshunter.io/ios/app/legacy-env-lab/id6744825726)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STABILITY LABORATORY free?

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

### Is Legacy Env Lab free?

Legacy Env Lab is free to download, with no in-app purchases.

### Do STABILITY LABORATORY or Legacy Env Lab have ads?

Neither STABILITY LABORATORY nor Legacy Env Lab shows ads.

### Which is updated more often, STABILITY LABORATORY or Legacy Env Lab?

STABILITY LABORATORY ships an update every 3 months, and Legacy Env Lab every 3 weeks. Most recently, STABILITY LABORATORY was updated on October 16, 2026 and Legacy Env Lab on October 12, 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.*