# System Guard vs ThermoHammer

The clearest difference is in-app purchases: ThermoHammer at none against System Guard's 1. ThermoHammer also leads on ads (none vs shown) and update cadence (every 3 days vs weekly). On price, device support and iOS requirement there is nothing between them.

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

System Guard ships an update weekly, ThermoHammer every 3 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | System Guard | ThermoHammer |
| --- | --- | --- |
| 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 | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 188 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RBT Digital LLC](https://appshunter.io/developer/1208547221) | [Gogita Kupatadze](https://appshunter.io/developer/1729061372) |

## 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 |


### ThermoHammer

[App page](https://appshunter.io/ios/app/thermohammer/id6791439615)

**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 ThermoHammer free?

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

### Do System Guard or ThermoHammer have ads?

System Guard shows ads; ThermoHammer does not.

### Which is updated more often, System Guard or ThermoHammer?

System Guard ships an update weekly, and ThermoHammer every 3 days. Most recently, System Guard was updated on October 29, 2026 and ThermoHammer on October 29, 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.*