# MARLIN Study vs OpenVet

The clearest difference is update cadence: OpenVet at every 5 days against MARLIN Study's every 6 weeks. MARLIN Study's advantage is iOS requirement (12.0 vs 16.2). 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.

MARLIN Study ships an update every 6 weeks, OpenVet every 5 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MARLIN Study | OpenVet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/openvet/id6789998855/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 149 MB | 3 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Hello Thread](https://appshunter.io/developer/996237890) | [OpenVet Inc.](https://appshunter.io/developer/6789998857) |

## What reviewers say

### MARLIN Study

[App page](https://appshunter.io/ios/app/marlin-study/id6503040793)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenVet

[App page](https://appshunter.io/ios/app/openvet/id6789998855)

This AI-powered tool assists veterinarians and veterinary students with clinical decision-making by providing quick access to patient records, drug information, and diagnostic guidance. It helps manage cases, look up drug monographs, and answer urgent questions, all within a unified workspace.

**Highlights:** AI clinical decision support, Patient record integration, Veterinary drug reference, Weight-based dose calculations, Emergency & Critical Care room, Voice dictation

**In-app purchases:** none


## Frequently asked questions

### Is MARLIN Study free?

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

### Is OpenVet free?

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

### Do MARLIN Study or OpenVet have ads?

Neither MARLIN Study nor OpenVet shows ads.

### Which is updated more often, MARLIN Study or OpenVet?

MARLIN Study ships an update every 6 weeks, and OpenVet every 5 days. Most recently, MARLIN Study was updated on October 18, 2026 and OpenVet on October 25, 2026.

---

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