# STAR vs Biotandem

The clearest difference is in-app purchases: STAR at none against Biotandem's 10. STAR also leads on iOS requirement (13.6 vs 15.1). Biotandem's advantage is update cadence (every 3 weeks vs every 44 months). On price, 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. STAR asks for nothing beyond the download.

STAR ships an update every 44 months, Biotandem every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | STAR | Biotandem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/star-riser-covi-ehealth/id1550296965/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 44 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 298 MB | 48 MB |
| Requires iOS | **13.6** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [STAR-RISER GmbH Business Solutions](https://appshunter.io/developer/1550296967) | [IOWorks Corporation](https://appshunter.io/developer/1824146835) |

## What reviewers say

### STAR

[App page](https://appshunter.io/ios/app/star-riser-covi-ehealth/id1550296965)

This app leverages blockchain and AI for secure health data management, offering NFT-backed certificates for data provenance and IP protection. It integrates with SAP systems and provides an enterprise metaverse for collaboration and operations, aiming for rapid deployment and measurable efficiency gains.

**Highlights:** Blockchain-powered data provenance, NFT certificates for IP protection, AI-driven analytics, SAP-native integration, Enterprise metaverse access, EU GDPR and ISO 27001 alignment

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is STAR free?

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

### Is Biotandem free?

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

### Do STAR or Biotandem have ads?

Neither STAR nor Biotandem shows ads.

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

STAR ships an update every 44 months, and Biotandem every 3 weeks. Most recently, STAR was updated on November 3, 2026 and Biotandem on November 8, 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.*