# CellTrust SL2 vs Cloudbrink

The clearest difference is rating: Cloudbrink at 5.0 against CellTrust SL2's 3.2. CellTrust SL2's advantage is ratings volume (27 vs 4). 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.

Cloudbrink holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: CellTrust SL2 has 27 ratings behind it against 4, so its average is the more settled of the two.

CellTrust SL2 ships an update every 2 months, Cloudbrink every 4 months. The most recent releases landed on September 11, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | CellTrust SL2 | Cloudbrink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (27 ratings)](https://appshunter.io/ios/app/celltrust-sl2/id1170300972/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cloudbrink/id6447561283/reviews)** |
| Number of ratings | **27** | 4 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 130 MB | 40 MB |
| Requires iOS | 15.6 | **14.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CellTrust Corporation](https://appshunter.io/developer/516410103) | [Cloudbrink Inc](https://appshunter.io/developer/1681767981) |

## What reviewers say

### CellTrust SL2

[App page](https://appshunter.io/ios/app/celltrust-sl2/id1170300972)

This app provides a dedicated business number for your mobile device, separating personal and professional communications. It utilizes secure technologies for internal messaging and voice calls, ensuring compliance and eDiscovery readiness for enterprises.

**Highlights:** Assign dedicated Mobile Business Number (MBN), Separate personal and business communications, SecureSMS® and SecureVoice™ technologies, Secure internal communications, eDiscovery and compliance support, BYOD handset compatibility

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

**In-app purchases:** none


### Cloudbrink

[App page](https://appshunter.io/ios/app/cloudbrink/id6447561283)

This software-only platform offers high-performance, zero-trust access to business applications for remote users. It combines application performance with robust security, ensuring authenticated access based on user and device identity. The solution leverages advanced protocols and a distributed network to significantly boost performance for remote workers.

**Highlights:** High-performance zero-trust access, Software-only solution, Application performance enhancement, User and device authentication, Role-based access controls, Software-defined WAN, Cost reduction

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CellTrust SL2 free?

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

### Is Cloudbrink free?

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

### Which has better reviews, CellTrust SL2 or Cloudbrink?

Cloudbrink is rated higher. CellTrust SL2 averages 3.2 out of 5 from 27 ratings, while Cloudbrink averages 5.0 from 4 ratings.

### Do CellTrust SL2 or Cloudbrink have ads?

Neither CellTrust SL2 nor Cloudbrink shows ads.

### Which is updated more often, CellTrust SL2 or Cloudbrink?

CellTrust SL2 ships an update every 2 months, and Cloudbrink every 4 months. Most recently, CellTrust SL2 was updated on September 11, 2026 and Cloudbrink on September 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.*