# GTS Test & Replace vs Notilify

The clearest difference is iOS requirement: GTS Test & Replace at 14.0 against Notilify's 16.2. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for GTS Test & Replace against 5.0 for Notilify. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

GTS Test & Replace ships an update every 9 months, Notilify every 5 months. The most recent releases landed on July 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | GTS Test & Replace | Notilify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/gts-test-and-replace/id1136865942/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/notilify/id1668591119/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 6 MB | 11 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Global Technology Systems, Inc.](https://appshunter.io/developer/1136865941) | [Ariel Araya-Madrigal](https://appshunter.io/developer/1623018170) |

## 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


### Notilify

[App page](https://appshunter.io/ios/app/notilify/id1668591119)

This pocket solver tackles common everyday problems like scientific notation, percentages, interest calculations, and various number system conversions. It aims to be a versatile tool for quick problem-solving.

**Highlights:** Scientific notation solver, Percentage calculator, Interest calculations, MLA formatting, Binary and Hexadecimal conversion

**Features:** macOS Compatibility

**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 Notilify free?

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

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

GTS Test & Replace and Notilify are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

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

Neither GTS Test & Replace nor Notilify shows ads.

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

GTS Test & Replace ships an update every 9 months, and Notilify every 5 months. Most recently, GTS Test & Replace was updated on July 10, 2026 and Notilify on June 1, 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.*