# Biosim vs Petlibro

The clearest difference is rating: Petlibro at 4.5 against Biosim's 2.3. Petlibro also leads on update cadence (weekly vs every 5 months) and ratings volume (7.4K vs 3). Biosim's advantage is in-app purchases (none vs 12) and iOS requirement (12.1 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Petlibro sells 11 in-app purchases, starting at $5.99 per month. Biosim asks for nothing beyond the download.

Petlibro holds the better App Store score, 4.5 against 2.3. That said, the two scores are not equally well evidenced: Petlibro has 7.4K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Biosim's written reviews are positive against 13% of Petlibro's.

Biosim ships an update every 5 months, Petlibro weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Biosim | Petlibro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/biosim/id622776961/reviews) | **[4.5 (7.4K ratings)](https://appshunter.io/ios/app/petlibro/id1586120661/reviews)** |
| Number of ratings | 3 | **7.4K** |
| Positive reviews | 0.0% of reviews | **12.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#70** |
| Size | 51 MB | 239 MB |
| Requires iOS | **12.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Touch Bionics, Inc.](https://appshunter.io/developer/622776964) | [Designlibro Inc](https://appshunter.io/developer/1586120663) |

## What reviewers say

### Biosim

[App page](https://appshunter.io/ios/app/biosim/id622776961)

This application allows clinicians to customize prosthetic devices for clients on the go. It offers various grip options, favorite lists, hand health checks, and real-time muscle signal viewing.

**Highlights:** Customize prosthesis on the move, Access 24 quick grips and 12 customizable grips, Create favorite lists and triggers, Activate hand health check, View real-time muscle signals, Apply firmware updates

**In-app purchases:** none


### Petlibro

[App page](https://appshunter.io/ios/app/petlibro/id1586120661)

**Currently charting:** #70 Top Grossing · Lifestyle, #184 Top Free · Lifestyle (US App Store)

Manage your pet's care remotely with smart device connectivity. Monitor well-being, set feeding schedules, and stay connected with live video streaming. Enjoy peace of mind knowing your pet is looked after.

**Highlights:** Remote device control, Real-time monitoring, Streamlined feeding schedules, Customizable voice messages, Live video streaming, Cloud video storage

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Monthly | $5.99 | per month |
| Care Monthly | $5.99 | per month |
| Plus Monthly | $11.99 | per month |
| AI Standard Monthly | $11.99 | per month |
| Care Plus Monthly | $12.99 | per month |
| AI Premium Monthly | $16.99 | per month |
| Standard Yearly | $59.99 | per year |
| Care Yearly | $59.99 | per year |
| Plus Yearly | $119.99 | per year |
| Care Plus Yearly | $129.99 | per year |
| AI Premium Yearly | $169.99 | per year |

**What reviewers like**

- 🚀 Convenient remote feeding
- 📊 Detailed feeding logs
- 🎥 Camera and microphone features
- 🔒 Secure device sharing
- 🐱 Helpful for multi-pet households

**What reviewers complain about**

- 🐛 Connectivity issues and app malfunctions
- 📢 Excessive and inaccurate notifications
- 🔍 Confusing navigation and information architecture
- 💰 Subscription paywall for key features
- 🔄 Lack of multi-device synchronization

**Reported bugs**

- App frequently disconnects from devices
- Notifications not working as expected
- Incorrect water level and consumption reporting
- Difficulty reconnecting devices after firmware updates

**Requested features**

- Ability to customize feeding schedules and portions
- Integration with smart home systems
- Voice message playback without dispensing food
- Small portion dispensing for precise dietary control
- Improved water intake tracking and history


## Frequently asked questions

### Is Biosim free?

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

### Is Petlibro free?

Petlibro is free to download, with in-app purchases available.

### Which has better reviews, Biosim or Petlibro?

Petlibro is rated higher. Biosim averages 2.3 out of 5 from 3 ratings, while Petlibro averages 4.5 from 7.4K ratings.

### Do Biosim or Petlibro have ads?

Neither Biosim nor Petlibro shows ads.

### Which is updated more often, Biosim or Petlibro?

Biosim ships an update every 5 months, and Petlibro weekly. Most recently, Biosim was updated on October 23, 2026 and Petlibro on October 24, 2026.

---

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