# PetLink ACO vs MS Notifier

The clearest difference is iOS requirement: PetLink ACO at 15.6 against MS Notifier's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

PetLink ACO ships an update every 9 days, MS Notifier weekly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | PetLink ACO | MS Notifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (28 ratings)](https://appshunter.io/ios/app/petlink-aco/id1557148500/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 11.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free | — |
| Size | 67 MB | 37 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Datamars SA](https://appshunter.io/developer/899066582) | [NUBIT SOFTWARE (PRIVATE) LIMITED](https://appshunter.io/developer/1705674432) |

## What reviewers say

### PetLink ACO

[App page](https://appshunter.io/ios/app/petlink-aco/id1557148500)

This app enables US animal professionals to quickly look up owner details for lost pets using microchip numbers. It facilitates submitting found pet reports and provides access to pet photos and medical information for faster reunification.

**Highlights:** Microchip number lookup via keypad or voice, Camera capture of microchip reader display, Search across PetLink, Backtrack, and AAHA databases, Submit found pet reports in 4 clicks, View pet photos and medical details, Facilitates pet-owner reunification

**Features:** Vision Pro support

**In-app purchases:** none


### MS Notifier

[App page](https://appshunter.io/ios/app/ms-notifier/id6764826083)

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

**In-app purchases:** none


## Frequently asked questions

### Is PetLink ACO free?

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

### Is MS Notifier free?

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

### Do PetLink ACO or MS Notifier have ads?

Neither PetLink ACO nor MS Notifier shows ads.

### Which is updated more often, PetLink ACO or MS Notifier?

PetLink ACO ships an update every 9 days, and MS Notifier weekly. Most recently, PetLink ACO was updated on October 7, 2026 and MS Notifier on October 5, 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.*