# Trial Ops vs O

The clearest difference is device support: O at 3 against Trial Ops's 1. 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.

Trial Ops ships an update monthly, O every 4 weeks. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Trial Ops | O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Size | 21 MB | 28 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Zhejiang Taimei Medical Technology Co., Ltd.](https://appshunter.io/developer/728095123) | [铨融 (苏州)医药科技开发有限公司](https://appshunter.io/developer/1253822764) |

## What reviewers say

### Trial Ops

[App page](https://appshunter.io/ios/app/trial-ops/id917139758)

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

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-trial-plus/id1423521217)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trial Ops free?

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

### Is O free?

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

### Do Trial Ops or O have ads?

Neither Trial Ops nor O shows ads.

### Which is updated more often, Trial Ops or O?

Trial Ops ships an update monthly, and O every 4 weeks. Most recently, Trial Ops was updated on October 14, 2026 and O on October 12, 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.*