# CoolMonitor vs sysdiagnose

The clearest difference is update cadence: sysdiagnose at every 3 days against CoolMonitor's every 3 weeks. 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.

CoolMonitor ships an update every 3 weeks, sysdiagnose every 3 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | CoolMonitor | sysdiagnose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/sysdiagnose/id6795409832/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 12 MB | 47 MB |
| Requires iOS | **16.1** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Zhangsan Software Co., Ltd., Enshi Prefecture, Hubei Province](https://appshunter.io/developer/1838713545) | [成都二耶科技有限公司](https://appshunter.io/developer/1763409898) |

## What reviewers say

### CoolMonitor

[App page](https://appshunter.io/ios/app/coolmonitor/id6792966365)

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

**In-app purchases:** none


### sysdiagnose

[App page](https://appshunter.io/ios/app/sysdiagnose/id6795409832)

This utility app parses complex iOS diagnostic files into easy-to-understand reports directly on your device. It offers a full checkup flow, structured insights into device health, and the ability to compare trends over time. Share reports as images, PDF, or JSON.

**Highlights:** Local parsing of sysdiagnose archives, Structured device health reports, On-device benchmark and scoring, Compare health and battery trends, Shareable PDF and JSON reports, Home Screen widgets for quick access, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is CoolMonitor free?

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

### Is sysdiagnose free?

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

### Do CoolMonitor or sysdiagnose have ads?

Neither CoolMonitor nor sysdiagnose shows ads.

### Which is updated more often, CoolMonitor or sysdiagnose?

CoolMonitor ships an update every 3 weeks, and sysdiagnose every 3 days. Most recently, CoolMonitor was updated on October 29, 2026 and sysdiagnose 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.*