# GTS Test & Replace vs MistAI

The clearest difference is review sentiment: GTS Test & Replace at 100% against MistAI's 25%. GTS Test & Replace also leads on rating (5.0 vs 4.1) and iOS requirement (14.0 vs 17.0). MistAI's advantage is update cadence (every 2 months vs every 9 months) and ratings volume (15 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GTS Test & Replace holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: MistAI has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of GTS Test & Replace's written reviews are positive against 25% of MistAI's.

GTS Test & Replace ships an update every 9 months, MistAI every 2 months. The most recent releases landed on July 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | GTS Test & Replace | MistAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gts-test-and-replace/id1136865942/reviews)** | [4.1 (15 ratings)](https://appshunter.io/ios/app/mistai/id1215196902/reviews) |
| Number of ratings | 1 | **15** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 6 MB | 67 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Global Technology Systems, Inc.](https://appshunter.io/developer/1136865941) | [Mist Systems](https://appshunter.io/developer/1083282110) |

## What reviewers say

### GTS Test & Replace

[App page](https://appshunter.io/ios/app/gts-test-and-replace/id1136865942)

This application works with a specific hardware tester to quickly assess the health of batteries. It helps businesses identify and manage underperforming batteries to improve operations. Customization options are available to suit specific business needs.

**Highlights:** Battery health testing, Identifies underperforming batteries, Customizable services, Pairs with GTS CP tester, Business battery management

**Features:** macOS Compatibility

**In-app purchases:** none


### MistAI

[App page](https://appshunter.io/ios/app/mistai/id1215196902)

This app simplifies the installation and on-boarding of Juniper network devices, including switches, routers, and access points. It offers secure login, device claiming, inventory management, and detailed site and device information for administrators and installers.

**Highlights:** Secure login with Mist account, Claim devices using codes or QR scans, Search and manage device inventory, View site and device information, Map view for Access Points, Device status and details

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

**In-app purchases:** none


## Frequently asked questions

### Is GTS Test & Replace free?

GTS Test & Replace is free to download, with no in-app purchases.

### Is MistAI free?

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

### Which has better reviews, GTS Test & Replace or MistAI?

GTS Test & Replace is rated higher. GTS Test & Replace averages 5.0 out of 5 from 1 ratings, while MistAI averages 4.1 from 15 ratings.

### Do GTS Test & Replace or MistAI have ads?

Neither GTS Test & Replace nor MistAI shows ads.

### Which is updated more often, GTS Test & Replace or MistAI?

GTS Test & Replace ships an update every 9 months, and MistAI every 2 months. Most recently, GTS Test & Replace was updated on July 10, 2026 and MistAI on September 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.*