# ACOI Events vs SFRBM

The clearest difference is update cadence: ACOI Events at monthly against SFRBM's every 12 months. ACOI Events also leads on ratings volume (67 vs 4). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.9 for ACOI Events against 5.0 for SFRBM. That said, the two scores are not equally well evidenced: ACOI Events has 67 ratings behind it against 4, so its average is the more settled of the two.

ACOI Events ships an update monthly, SFRBM every 12 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ACOI Events | SFRBM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (67 ratings)](https://appshunter.io/ios/app/acoi-events/id6692608799/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sfrbm/id6737702847/reviews)** |
| Number of ratings | **67** | 4 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | Free |
| Size | 84 MB | 81 MB |
| Requires iOS | 15.5 | **14** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [American College of Osteopathic Internists](https://appshunter.io/developer/567593502) | [Society for Redox Biology and Medicine (SfRBM)](https://appshunter.io/developer/1276640169) |

## What reviewers say

### ACOI Events

[App page](https://appshunter.io/ios/app/acoi-events/id6692608799)

This app provides attendees of the ACOI Event with access to presentations, speaker information, and exhibitor details. Users can take notes directly on slides, draw on content, and communicate with other attendees via in-app messaging, tweeting, and emailing.

**Highlights:** View abstracts and presentations, Access speaker and exhibitor details, Take notes on presentation slides, Draw directly on slides, In-app messaging with attendees, Share information via tweet and email

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

**In-app purchases:** none


### SFRBM

[App page](https://appshunter.io/ios/app/sfrbm/id6737702847)

Access meeting schedules, presentations, and exhibitor details for Society for Redox Biology and Medicine events. Take notes directly on slides and engage with attendees through in-app messaging.

**Highlights:** View meeting schedules, Access presentations and posters, Detailed exhibitor and speaker information, Take notes on slides, Draw directly on presentation slides, In-app messaging with attendees, Attendee message board

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACOI Events free?

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

### Is SFRBM free?

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

### Which has better reviews, ACOI Events or SFRBM?

SFRBM is rated higher. ACOI Events averages 4.9 out of 5 from 67 ratings, while SFRBM averages 5.0 from 4 ratings.

### Do ACOI Events or SFRBM have ads?

Neither ACOI Events nor SFRBM shows ads.

### Which is updated more often, ACOI Events or SFRBM?

ACOI Events ships an update monthly, and SFRBM every 12 months. Most recently, ACOI Events was updated on November 4, 2026 and SFRBM on October 30, 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.*