# RBHH Alumni vs MAINSTREAM Community

The clearest difference is iOS requirement: RBHH Alumni at 13.4 against MAINSTREAM Community's 15.1. 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.

RBHH Alumni ships an update every 5 months, MAINSTREAM Community every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | RBHH Alumni | MAINSTREAM Community |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Size | 63 MB | 76 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Royal Brompton & Harefield NHS Foundation Trust](https://appshunter.io/developer/878181800) | [The Eventful Group Pty Ltd](https://appshunter.io/developer/901759129) |

## What reviewers say

### RBHH Alumni

[App page](https://appshunter.io/ios/app/rbhh-alumni/id1571150414)

**Features:** macOS Compatibility

**In-app purchases:** none


### MAINSTREAM Community

[App page](https://appshunter.io/ios/app/mainstream-community/id6449767731)

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

**In-app purchases:** none


## Frequently asked questions

### Is RBHH Alumni free?

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

### Is MAINSTREAM Community free?

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

### Do RBHH Alumni or MAINSTREAM Community have ads?

Neither RBHH Alumni nor MAINSTREAM Community shows ads.

### Which is updated more often, RBHH Alumni or MAINSTREAM Community?

RBHH Alumni ships an update every 5 months, and MAINSTREAM Community every 3 months. Most recently, RBHH Alumni was updated on November 3, 2026 and MAINSTREAM Community on November 3, 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.*