# MPI Events vs PTSI Events

The clearest difference is update cadence: MPI Events at every 3 months against PTSI Events's every 6 months. PTSI Events's advantage is iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

MPI Events ships an update every 3 months, PTSI Events every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | MPI Events | PTSI Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/mpi-events/id1624111668/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | — |
| Size | 82 MB | 66 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Meeting Professionals International](https://appshunter.io/developer/490275635) | [Mosaic Learning, Inc.](https://appshunter.io/developer/518404678) |

## What reviewers say

### MPI Events

[App page](https://appshunter.io/ios/app/mpi-events/id1624111668)

Stay informed about the latest events from a leading global event agency. Discover innovative meeting designs and networking formats to enhance your professional success.

**Highlights:** Event updates, Innovative meeting design, Networking formats, Technology integration, Best practices

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

**In-app purchases:** none


### PTSI Events

[App page](https://appshunter.io/ios/app/ptsi-events/id6444631283)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MPI Events free?

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

### Is PTSI Events free?

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

### Do MPI Events or PTSI Events have ads?

Neither MPI Events nor PTSI Events shows ads.

### Which is updated more often, MPI Events or PTSI Events?

MPI Events ships an update every 3 months, and PTSI Events every 6 months. Most recently, MPI Events was updated on November 3, 2026 and PTSI Events 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.*