# CellTrust SL2 for Microsoft vs Secure Contacts

The clearest difference is ratings volume: CellTrust SL2 for Microsoft at 4 against Secure Contacts's 1. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for CellTrust SL2 for Microsoft against 5.0 for Secure Contacts. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

CellTrust SL2 for Microsoft ships an update every 3 months, Secure Contacts every 6 weeks. The most recent releases landed on September 26, 2026 and July 26, 2026 respectively.

## The numbers

| Metric | CellTrust SL2 for Microsoft | Secure Contacts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/secure-contacts/id1617596880/reviews) |
| Number of ratings | **4** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 146 MB | 43 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CellTrust Corporation](https://appshunter.io/developer/516410103) | [Provectus Software GmbH](https://appshunter.io/developer/1717423073) |

## 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


### Secure Contacts

[App page](https://appshunter.io/ios/app/secure-contacts/id1617596880)

Manage business contacts centrally and compliantly without manual maintenance. Consolidate contacts from Outlook, Teams, and CRM systems in a secure environment, avoiding unwanted synchronization with third-party providers.

**Highlights:** GDPR-compliant contact storage, Microsoft 365 integration, Teams calls and chats, Caller identification and blocking, Duplicate detection and merging, Secure contact sharing, Vacation mode

**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 Secure Contacts free?

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

### Which has better reviews, CellTrust SL2 for Microsoft or Secure Contacts?

CellTrust SL2 for Microsoft and Secure Contacts are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do CellTrust SL2 for Microsoft or Secure Contacts have ads?

Neither CellTrust SL2 for Microsoft nor Secure Contacts shows ads.

### Which is updated more often, CellTrust SL2 for Microsoft or Secure Contacts?

CellTrust SL2 for Microsoft ships an update every 3 months, and Secure Contacts every 6 weeks. Most recently, CellTrust SL2 for Microsoft was updated on September 26, 2026 and Secure Contacts on July 26, 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.*