# System Guard vs M2M by SFS

The clearest difference is in-app purchases: M2M by SFS at none against System Guard's 1. M2M by SFS also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). System Guard's advantage is update cadence (every 10 days vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. System Guard sells 1 one-off in-app purchase. M2M by SFS asks for nothing beyond the download.

System Guard ships an update every 10 days, M2M by SFS every 5 weeks. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | System Guard | M2M by SFS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (978 ratings)](https://appshunter.io/ios/app/system-guard/id1210477137/reviews)** | — |
| Number of ratings | **978** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 37 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RBT Digital LLC](https://appshunter.io/developer/1208547221) | [SFS Gruppe](https://appshunter.io/developer/552361799) |

## What reviewers say

### System Guard

[App page](https://appshunter.io/ios/app/system-guard/id1210477137)

Gain deep insights into your iPhone, iPad, or Apple Watch. Monitor device health, storage, battery, and network status with clear explanations and historical data. Perform hardware diagnostics and optimize your device's performance.

**Highlights:** Device status overview, Detailed battery health and history, Comprehensive hardware specifications, Storage management and optimization, Network analysis and speed tests, Hardware diagnostic tests, Home/Lock Screen widgets and Siri integration

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| System Guard Pro | $2.99 | one-time |


### M2M by SFS

[App page](https://appshunter.io/ios/app/m2m-by-sfs/id1336525644)

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

**In-app purchases:** none


## Frequently asked questions

### Is System Guard free?

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

### Is M2M by SFS free?

M2M by SFS is free to download, with no in-app purchases.

### Do System Guard or M2M by SFS have ads?

System Guard shows ads; M2M by SFS does not.

### Which is updated more often, System Guard or M2M by SFS?

System Guard ships an update every 10 days, and M2M by SFS every 5 weeks. Most recently, System Guard was updated on October 24, 2026 and M2M by SFS on October 3, 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.*