# CoolGuard vs Message Receipts

The clearest difference is update cadence: Message Receipts at daily against CoolGuard's weekly. CoolGuard's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CoolGuard sells 3 one-off in-app purchases and Message Receipts sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CoolGuard ships an update weekly, Message Receipts daily. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CoolGuard | Message Receipts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coolguard/id6801791826/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 7 MB | 3 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Norbert Pentek](https://appshunter.io/developer/1884922906) | [WNM Live](https://appshunter.io/developer/492698722) |

## 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 |


### Message Receipts

[App page](https://appshunter.io/ios/app/message-receipts/id6802305702)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Screenshots | $9.99 | one-time |


## Frequently asked questions

### Is CoolGuard free?

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

### Is Message Receipts free?

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

### Do CoolGuard or Message Receipts have ads?

Neither CoolGuard nor Message Receipts shows ads.

### Which is updated more often, CoolGuard or Message Receipts?

CoolGuard ships an update weekly, and Message Receipts daily. Most recently, CoolGuard was updated on October 6, 2026 and Message Receipts on October 10, 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.*