# Cool Guard vs Sunstream

The clearest difference is update cadence: Cool Guard at every 2 weeks against Sunstream's monthly. Sunstream's advantage is iOS requirement (16.0 vs 26.2). 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.

Cool Guard ships an update every 2 weeks, Sunstream monthly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cool Guard | Sunstream |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cool-guard-k9-handler-app/id6484260960/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | — |
| Size | 33 MB | 15 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TouchLync, Inc](https://appshunter.io/developer/1740499417) | [Sunstream Corporation](https://appshunter.io/developer/1550850083) |

## What reviewers say

### Cool Guard

[App page](https://appshunter.io/ios/app/cool-guard-k9-handler-app/id6484260960)

Monitor your K9 partner's environmental comfort levels remotely. Receive instant push notifications and view warning or alarm events when heat or cold triggers are met. Allows departments and dispatch to monitor K9 status.

**Highlights:** K9 comfort tracking, Heat and cold trigger alerts, Push notifications, Warning and alarm event display, Department and 911 dispatch monitoring

**In-app purchases:** none


### Sunstream

[App page](https://appshunter.io/ios/app/sunstream-lift/id6738208410)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cool Guard free?

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

### Is Sunstream free?

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

### Do Cool Guard or Sunstream have ads?

Neither Cool Guard nor Sunstream shows ads.

### Which is updated more often, Cool Guard or Sunstream?

Cool Guard ships an update every 2 weeks, and Sunstream monthly. Most recently, Cool Guard was updated on October 30, 2026 and Sunstream 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.*