# Pet Zero vs UPET

The clearest difference is rating: Pet Zero at 4.8 against UPET's 2.8. Pet Zero also leads on ratings volume (3.5K vs 12). UPET's advantage is update cadence (every 6 weeks vs every 7 months). On price, review sentiment, 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.

Pet Zero holds the better App Store score, 4.8 against 2.8. That said, the two scores are not equally well evidenced: Pet Zero has 3.5K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 51% of Pet Zero's written reviews are positive against 46% of UPET's.

Pet Zero ships an update every 7 months, UPET every 6 weeks. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pet Zero | UPET |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.5K ratings)](https://appshunter.io/ios/app/pet-zero/id1507536028/reviews)** | [2.8 (12 ratings)](https://appshunter.io/ios/app/upet-na/id6445803692/reviews) |
| Number of ratings | **3.5K** | 12 |
| Positive reviews | **51.0% of reviews** | 46.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 189 MB | 183 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [泽明 任](https://appshunter.io/developer/1270084552) | [UBTECH ROBOTICS CORP](https://appshunter.io/developer/975970176) |

## What reviewers say

### Pet Zero

[App page](https://appshunter.io/ios/app/pet-zero/id1507536028)

This app facilitates communication and remote management of pets through smart feeders. It allows for timed and manual feeding, real-time video monitoring, two-way audio, and notifications for low food levels.

**Highlights:** Timed pet feeding, Remote manual feeding, Low food notifications, Real-time video monitoring, Two-way audio communication, Feeding record tracking

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable and consistent
- 🔒 Secure connection
- 👍 Easy to use app
- 👍 Convenient for pet owners
- 👍 Helpful for managing pet's diet

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Notifications not working
- 🐛 Frequent sign-outs
- 🐛 Inconsistent feeding
- 🐛 Difficulty updating network information

**Reported bugs**

- Feeding schedule not saving
- Login button not working
- Portion size issues for larger pets
- Feeding history not recorded during sign-outs

**Requested features**

- Vacation mode to pause feeding
- Delay option for multiple feeders
- AM/PM time selection
- Siri Shortcuts integration
- Confirmation for manual feeding


### UPET

[App page](https://appshunter.io/ios/app/upet-na/id6445803692)

This app works with a smart cat litter box to monitor your cat's health and habits. It offers multi-cat identification, detailed health data management, and customizable smart settings for your litter box.

**Highlights:** Multi-cat identification, Health data management, Customized smart settings, Remote operation visualization, Real-time status viewing, AI intelligent recognition

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

**In-app purchases:** none


## Frequently asked questions

### Is Pet Zero free?

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

### Is UPET free?

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

### Which has better reviews, Pet Zero or UPET?

Pet Zero is rated higher. Pet Zero averages 4.8 out of 5 from 3.5K ratings, while UPET averages 2.8 from 12 ratings.

### Do Pet Zero or UPET have ads?

Neither Pet Zero nor UPET shows ads.

### Which is updated more often, Pet Zero or UPET?

Pet Zero ships an update every 7 months, and UPET every 6 weeks. Most recently, Pet Zero was updated on September 20, 2026 and UPET on September 17, 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.*