# CoolGuard vs Crager

The clearest difference is in-app purchases: Crager at none against CoolGuard's 3. Crager also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CoolGuard sells 3 one-off in-app purchases. Crager asks for nothing beyond the download.

CoolGuard ships an update weekly, Crager every 2 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CoolGuard | Crager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/coolguard/id6801791826/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | — |
| Size | 7 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Norbert Pentek](https://appshunter.io/developer/1884922906) | [Uladzislau Hliavitski](https://appshunter.io/developer/6813164718) |

## What reviewers say

### CoolGuard

[App page](https://appshunter.io/ios/app/coolguard/id6801791826)

This app monitors your phone's temperature, providing real-time heat levels and alerts to prevent performance issues and battery aging. It also functions as a customizable night clock with alarms and displays local weather information.

**Highlights:** Live heat level monitoring, Heat trend and log with map, Customizable alerts and cooling tips, Night clock with sleep mode, Multiple alarms with system integration, Outdoor weather display, Lock screen and Dynamic Island widgets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $0.99 | one-time |
| Medium tip | $2.99 | one-time |
| Large tip | $9.99 | one-time |


### Crager

[App page](https://appshunter.io/ios/app/crager/id6816206082)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CoolGuard free?

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

### Is Crager free?

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

### Do CoolGuard or Crager have ads?

Neither CoolGuard nor Crager shows ads.

### Which is updated more often, CoolGuard or Crager?

CoolGuard ships an update weekly, and Crager every 2 days. Most recently, CoolGuard was updated on October 23, 2026 and Crager on October 24, 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.*