# PET vs Abby Tracker

The clearest difference is update cadence: Abby Tracker at every 8 days against PET's monthly. PET's advantage is iOS requirement (13.0 vs 15.1). 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.

PET ships an update monthly, Abby Tracker every 8 days. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PET | Abby Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Size | 46 MB | 32 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [金芳 郭](https://appshunter.io/developer/1701870847) | [START.IT](https://appshunter.io/developer/1107920806) |

## What reviewers say

### PET

[App page](https://appshunter.io/ios/app/pet-diary/id6743213111)

**In-app purchases:** none


### Abby Tracker

[App page](https://appshunter.io/ios/app/abby-tracker/id6756555159)

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

**In-app purchases:** none


## Frequently asked questions

### Is PET free?

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

### Is Abby Tracker free?

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

### Do PET or Abby Tracker have ads?

Neither PET nor Abby Tracker shows ads.

### Which is updated more often, PET or Abby Tracker?

PET ships an update monthly, and Abby Tracker every 8 days. Most recently, PET was updated on October 5, 2026 and Abby Tracker on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*