# MDS Events vs OnADose

The clearest difference is rating: OnADose at 5.0 against MDS Events's 4.5. OnADose also leads on iOS requirement (11.0 vs 17.0). MDS Events's advantage is ratings volume (104 vs 3). 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.

OnADose holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: MDS Events has 104 ratings behind it against 3, so its average is the more settled of the two.

MDS Events ships an update every 12 months, OnADose every 8 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | MDS Events | OnADose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (104 ratings)](https://appshunter.io/ios/app/mds-events/id1434098838/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/onadose/id1645036878/reviews)** |
| Number of ratings | **104** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 109 MB | 44 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Movement Disorder Society](https://appshunter.io/developer/533955667) | [AbbVie](https://appshunter.io/developer/658342806) |

## What reviewers say

### MDS Events

[App page](https://appshunter.io/ios/app/mds-events/id1434098838)

Access comprehensive information for medical congresses, including sessions, speaker details, and exhibitor listings. Stay updated on the International Congress of Parkinson’s Disease and Movement Disorders® and other regional events.

**Highlights:** Event session access, Speaker information, Exhibitor listings, Regional event updates, Congress networking

**Features:** Apple Wallet

**In-app purchases:** none


### OnADose

[App page](https://appshunter.io/ios/app/onadose/id1645036878)

This educational tool assists US healthcare professionals with onabotulinumtoxinA dosing and reconstitution for conditions like chronic migraine, spasticity, and cervical dystonia. It provides important safety information and indications for approved uses.

**Highlights:** OnabotulinumtoxinA dosing guidance, Reconstitution information, Educational tool for healthcare professionals, Information on chronic migraine, Information on spasticity, Information on cervical dystonia, Important safety information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MDS Events free?

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

### Is OnADose free?

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

### Which has better reviews, MDS Events or OnADose?

OnADose is rated higher. MDS Events averages 4.5 out of 5 from 104 ratings, while OnADose averages 5.0 from 3 ratings.

### Do MDS Events or OnADose have ads?

Neither MDS Events nor OnADose shows ads.

### Which is updated more often, MDS Events or OnADose?

MDS Events ships an update every 12 months, and OnADose every 8 months. Most recently, MDS Events was updated on November 2, 2026 and OnADose on November 4, 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.*