# CellTrust SL2 for Microsoft vs Pb Event Hub

CellTrust SL2 for Microsoft and Pb Event Hub are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CellTrust SL2 for Microsoft ships an update every 3 months, Pb Event Hub every 4 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CellTrust SL2 for Microsoft | Pb Event Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 146 MB | 65 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CellTrust Corporation](https://appshunter.io/developer/516410103) | [Pb Ltd](https://appshunter.io/developer/1384436945) |

## What reviewers say

### 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


### Pb Event Hub

[App page](https://appshunter.io/ios/app/pb-event-hub/id6444013547)

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

**In-app purchases:** none


## Frequently asked questions

### Is CellTrust SL2 for Microsoft free?

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

### Is Pb Event Hub free?

Pb Event Hub is free to download, with no in-app purchases.

### Do CellTrust SL2 for Microsoft or Pb Event Hub have ads?

Neither CellTrust SL2 for Microsoft nor Pb Event Hub shows ads.

### Which is updated more often, CellTrust SL2 for Microsoft or Pb Event Hub?

CellTrust SL2 for Microsoft ships an update every 3 months, and Pb Event Hub every 4 months. Most recently, CellTrust SL2 for Microsoft was updated on October 12, 2026 and Pb Event Hub on October 25, 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.*