# SII Events App vs CellTrust SL2 for Microsoft

The clearest difference is rating: CellTrust SL2 for Microsoft at 5.0 against SII Events App's 4.0. SII Events App's advantage is update cadence (monthly vs every 3 months). On price, ratings volume, 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.

CellTrust SL2 for Microsoft holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

SII Events App ships an update monthly, CellTrust SL2 for Microsoft every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | SII Events App | CellTrust SL2 for Microsoft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/sii-events-app/id1073872345/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513/reviews)** |
| Number of ratings | 3 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 56 MB | 146 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Securities Industry Financial Market Association](https://appshunter.io/developer/494144916) | [CellTrust Corporation](https://appshunter.io/developer/516410103) |

## What reviewers say

### SII Events App

[App page](https://appshunter.io/ios/app/sii-events-app/id1073872345)

This app enhances the experience for registered participants of a specific executive education event. It offers interactive features and engagement tools for event owners and attendees. Access requires registration and a valid activation code.

**Highlights:** Event interactivity, Participant engagement tools, Access to curriculum, Networking opportunities, Health app data integration

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

**In-app purchases:** none


### CellTrust SL2 for Microsoft

[App page](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513)

This app provides a secure mobility solution for businesses, integrating with Microsoft Intune to manage devices and mobile communications. It ensures regulatory compliance, captures business communications for archiving, and offers secure messaging and voice features.

**Highlights:** Device and application management, Secure mobile communication, Regulatory compliance, Automatic communication archiving, Secure mobile voice and messaging, Integration with Microsoft 365

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

**In-app purchases:** none


## Frequently asked questions

### Is SII Events App free?

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

### Is CellTrust SL2 for Microsoft free?

CellTrust SL2 for Microsoft is free to download, with no in-app purchases.

### Which has better reviews, SII Events App or CellTrust SL2 for Microsoft?

CellTrust SL2 for Microsoft is rated higher. SII Events App averages 4.0 out of 5 from 3 ratings, while CellTrust SL2 for Microsoft averages 5.0 from 4 ratings.

### Do SII Events App or CellTrust SL2 for Microsoft have ads?

Neither SII Events App nor CellTrust SL2 for Microsoft shows ads.

### Which is updated more often, SII Events App or CellTrust SL2 for Microsoft?

SII Events App ships an update monthly, and CellTrust SL2 for Microsoft every 3 months. Most recently, SII Events App was updated on November 2, 2026 and CellTrust SL2 for Microsoft on November 2, 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.*