# NSPE vs INMM

The clearest difference is rating: NSPE at 5.0 against INMM's 4.7. INMM's advantage is ratings volume (3 vs 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.

NSPE holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

NSPE ships an update every 3 months, INMM every 2 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | NSPE | INMM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nspe/id6748648326/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/inmm/id6749855665/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 87 MB | 102 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [National Society of Professional Engineers](https://appshunter.io/developer/1361119901) | [Institute of Nuclear Materials Management](https://appshunter.io/developer/783678557) |

## What reviewers say

### NSPE

[App page](https://appshunter.io/ios/app/nspe/id6748648326)

Access conference schedules, presentations, and speaker details. Take notes directly on slides, posters, and exhibitor information. Connect with attendees and colleagues through in-app messaging, tweeting, and emailing.

**Highlights:** View conference schedule, Access presentations and speaker details, Take notes on slides, Draw directly on presentation slides, In-app messaging, Share information via tweeting and emailing

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

**In-app purchases:** none


### INMM

[App page](https://appshunter.io/ios/app/inmm/id6749855665)

Access conference schedules, speaker details, and presentation slides. Take notes directly on slides and share information with colleagues through in-app messaging.

**Highlights:** View conference schedules, Access speaker details, Review presentation slides, Take notes on presentations, Draw directly on slides, In-app messaging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NSPE free?

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

### Is INMM free?

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

### Which has better reviews, NSPE or INMM?

NSPE is rated higher. NSPE averages 5.0 out of 5 from 1 ratings, while INMM averages 4.7 from 3 ratings.

### Do NSPE or INMM have ads?

Neither NSPE nor INMM shows ads.

### Which is updated more often, NSPE or INMM?

NSPE ships an update every 3 months, and INMM every 2 months. Most recently, NSPE was updated on October 9, 2026 and INMM on October 9, 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.*