# AIRS vs System Lock

The clearest difference is in-app purchases: AIRS at none against System Lock's 4. AIRS also leads on iOS requirement (15.6 vs 17.0). System Lock's advantage is update cadence (every 6 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. System Lock sells 4 in-app purchases, starting at $4.99 per 7 days. AIRS asks for nothing beyond the download.

AIRS ships an update every 6 months, System Lock every 6 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AIRS | System Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/airs-resilience-training/id6473331828/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 941 MB | 89 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Perceptronics Solutions, Inc](https://appshunter.io/developer/569511302) | [Mark Angelo Atienza](https://appshunter.io/developer/1896323065) |

## What reviewers say

### AIRS

[App page](https://appshunter.io/ios/app/airs-resilience-training/id6473331828)

Learn evidence-based strategies to manage stress, improve decision-making, and enhance relationships. This app uses neuroscience and interactive games to help you perform better under pressure and recover faster from stressful experiences.

**Highlights:** Evidence-based resilience strategies, Interactive games for stress management, Neuroscience-informed techniques, Stress preparation and recovery training, Improved decision-making under pressure

**Features:** macOS Compatibility

**In-app purchases:** none


### System Lock

[App page](https://appshunter.io/ios/app/system-lock-level-up-focus/id6766763868)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| System Lock Pro | $4.99 | per 7 days |
| System Lock Pro | $9.99 | per month |
| System Lock Pro | $19.99 | per year |
| System Lock Pro | $49.99 | per year |


## Frequently asked questions

### Is AIRS free?

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

### Is System Lock free?

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

### Do AIRS or System Lock have ads?

Neither AIRS nor System Lock shows ads.

### Which is updated more often, AIRS or System Lock?

AIRS ships an update every 6 months, and System Lock every 6 days. Most recently, AIRS was updated on November 4, 2026 and System Lock on October 31, 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.*