# Biotandem vs Omnisio

The clearest difference is in-app purchases: Omnisio at none against Biotandem's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Biotandem sells 10 in-app purchases, starting at $4.99 per month. Omnisio asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Biotandem | Omnisio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 48 MB | 77 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IOWorks Corporation](https://appshunter.io/developer/1824146835) | [Oney Ventures](https://appshunter.io/developer/1892327540) |

## What reviewers say

### Biotandem

[App page](https://appshunter.io/ios/app/biotandem/id6748063868)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family (Monthly) | $4.99 | per month |
| Family (Yearly) | $49.99 | per year |
| Pro (Monthly) | $49.99 | per month |
| Pro + Oncology (Monthly) | $69.99 | per month |
| Pro + Cardiovascular (Monthly) | $79.99 | per month |
| Pro + Combo (Monthly) | $89.99 | per month |
| Pro (Yearly) | $499.99 | per year |
| Pro + Oncology (Yearly) | $799.99 | per year |
| Pro + Cardiovascular (Yearly) | $799.99 | per year |
| Pro + Combo (Yearly) | $899.99 | per year |


### Omnisio

[App page](https://appshunter.io/ios/app/omnisio/id6761989901)

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

**In-app purchases:** none


## Frequently asked questions

### Is Biotandem free?

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

### Is Omnisio free?

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

### Do Biotandem or Omnisio have ads?

Neither Biotandem nor Omnisio shows ads.

### Which is updated more often, Biotandem or Omnisio?

Biotandem ships an update every 3 weeks, and Omnisio every 3 weeks. Most recently, Biotandem was updated on October 28, 2026 and Omnisio 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.*