# Biotandem vs Emergency Map

The clearest difference is in-app purchases: Emergency Map at none against Biotandem's 10. Biotandem's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Biotandem ships an update every 3 weeks, Emergency Map every 6 weeks. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Biotandem | Emergency Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 48 MB | 44 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [IOWorks Corporation](https://appshunter.io/developer/1824146835) | [XENA VISION LLC](https://appshunter.io/developer/1842545561) |

## 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 |


### Emergency Map

[App page](https://appshunter.io/ios/app/emergency-map/id6753179384)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Biotandem free?

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

### Is Emergency Map free?

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

### Do Biotandem or Emergency Map have ads?

Neither Biotandem nor Emergency Map shows ads.

### Which is updated more often, Biotandem or Emergency Map?

Biotandem ships an update every 3 weeks, and Emergency Map every 6 weeks. Most recently, Biotandem was updated on September 7, 2026 and Emergency Map on September 9, 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.*