# ISPOR vs MSD One

The clearest difference is rating: MSD One at 4.4 against ISPOR's 3.0. MSD One also leads on ads (none vs shown) and update cadence (every 6 months vs every 28 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MSD One holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

ISPOR ships an update every 28 months, MSD One every 6 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ISPOR | MSD One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/ispor/id6447532773/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/msd-one/id6474043630/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 28 months | **Every 6 months** |
| Monetization | Ad-supported | **Free** |
| Size | 50 MB | 122 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +17 |
| Developer | [INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS & OUTCOMES RESEARCH, INC](https://appshunter.io/developer/1459179099) | [Merck Sharp & Dohme LLC](https://appshunter.io/developer/718617686) |

## What reviewers say

### ISPOR

[App page](https://appshunter.io/ios/app/ispor/id6447532773)

Enhance your event experience with real-time updates on agendas, speakers, and exhibitors. Personalize your schedule, connect with attendees, and discover solution providers. Stay informed with the latest news and updates.

**Highlights:** Personalized agenda creation, Speaker and exhibitor details, Attendee networking and messaging, Poster and abstract review, Real-time event updates, Twitter feed integration

**In-app purchases:** none


### MSD One

[App page](https://appshunter.io/ios/app/msd-one/id6474043630)

Enhance hybrid and in-person events with interactive features. Attendees receive personalized agendas, travel updates, and venue info. Facilitate audience engagement through Q&A, polls, and a secure social media wall.

**Highlights:** Personalized agendas, Real-time travel updates, Moderated Q&A panel, Slide saving with annotations, Audience polling and gamification, Private social media wall

**In-app purchases:** none


## Frequently asked questions

### Is ISPOR free?

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

### Is MSD One free?

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

### Which has better reviews, ISPOR or MSD One?

MSD One is rated higher. ISPOR averages 3.0 out of 5 from 2 ratings, while MSD One averages 4.4 from 7 ratings.

### Do ISPOR or MSD One have ads?

ISPOR shows ads; MSD One does not.

### Which is updated more often, ISPOR or MSD One?

ISPOR ships an update every 28 months, and MSD One every 6 months. Most recently, ISPOR was updated on October 30, 2026 and MSD One on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*