# Tunnel vs CellTrust SL2 for Microsoft

The clearest difference is rating: CellTrust SL2 for Microsoft at 5.0 against Tunnel's 3.1. Tunnel's advantage is ratings volume (77 vs 4) and iOS requirement (15.0 vs 17.6). 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.

CellTrust SL2 for Microsoft holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Tunnel has 77 ratings behind it against 4, so its average is the more settled of the two.

Tunnel ships an update every 2 months, CellTrust SL2 for Microsoft every 3 months. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Tunnel | CellTrust SL2 for Microsoft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (77 ratings)](https://appshunter.io/ios/app/tunnel-workspace-one/id1125174855/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513/reviews)** |
| Number of ratings | **77** | 4 |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 54 MB | 146 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AirWatch, LLC](https://appshunter.io/developer/338761999) | [CellTrust Corporation](https://appshunter.io/developer/516410103) |

## What reviewers say

### Tunnel

[App page](https://appshunter.io/ios/app/tunnel-workspace-one/id1125174855)

This app provides secure access to corporate resources for your work-managed applications. It offers on-demand connectivity, activating automatically when needed and disconnecting afterward. The app prioritizes user privacy by only connecting work-related apps and sites, keeping personal data separate.

**Highlights:** Secure corporate resource access, On-demand app connectivity, Privacy-focused design, Connects internal and public apps, Separates work and personal space

**Features:** 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 Tunnel free?

Tunnel 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, Tunnel or CellTrust SL2 for Microsoft?

CellTrust SL2 for Microsoft is rated higher. Tunnel averages 3.1 out of 5 from 77 ratings, while CellTrust SL2 for Microsoft averages 5.0 from 4 ratings.

### Do Tunnel or CellTrust SL2 for Microsoft have ads?

Neither Tunnel nor CellTrust SL2 for Microsoft shows ads.

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

Tunnel ships an update every 2 months, and CellTrust SL2 for Microsoft every 3 months. Most recently, Tunnel was updated on October 27, 2026 and CellTrust SL2 for Microsoft on October 12, 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.*