# PetLink ACO vs E

The clearest difference is rating: E at 5.0 against PetLink ACO's 1.8. PetLink ACO's advantage is ratings volume (28 vs 2). 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.

E holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: PetLink ACO has 28 ratings behind it against 2, so its average is the more settled of the two.

PetLink ACO ships an update every 9 days, E weekly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PetLink ACO | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (28 ratings)](https://appshunter.io/ios/app/petlink-aco/id1557148500/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/e-collar-training-hub/id6759734810/reviews)** |
| Number of ratings | **28** | 2 |
| Positive reviews | 11.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free | Free |
| Size | 67 MB | 45 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Datamars SA](https://appshunter.io/developer/899066582) | [Matthew Patrick](https://appshunter.io/developer/1880411034) |

## 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


### E

[App page](https://appshunter.io/ios/app/e-collar-training-hub/id6759734810)

This app provides comprehensive support for E-Collar dog training devices. It offers an AI assistant for training guidance and troubleshooting, digital product manuals, and advanced tools for professional trainers to manage clients and track sessions.

**Highlights:** AI Training Assistant, Product Support & Troubleshooting, Digital Product Manuals, Session Logger, Client Management, Dog Profiles, Training Reports

**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 E free?

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

### Which has better reviews, PetLink ACO or E?

E is rated higher. PetLink ACO averages 1.8 out of 5 from 28 ratings, while E averages 5.0 from 2 ratings.

### Do PetLink ACO or E have ads?

Neither PetLink ACO nor E shows ads.

### Which is updated more often, PetLink ACO or E?

PetLink ACO ships an update every 9 days, and E weekly. Most recently, PetLink ACO was updated on October 15, 2026 and E on October 14, 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.*