# CellTrust SL2 — Enterprise Capture > Enterprise mobile communication app with separate business numbers and secure messaging. (iPhone/iPad app by CellTrust Corporation.) - Source: https://appshunter.io/ios/app/celltrust-sl2/id1170300972 (this page in markdown: same URL + `.md`) - Developer: [CellTrust Corporation](https://appshunter.io/developer/516410103) - Category: Business, Productivity - Price: Free - Rating: 3.20/5 from 27 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 130 MB - Languages: American English - Released: 2016-11-02 - Data updated: 2026-07-27 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/celltrust-sl2/id1170300972/reviews.md ## What is CellTrust SL2? CellTrust SL2™ is an enterprise-level application that works by assigning a Mobile Business Number (MBN) to keep personal and business communications separate on a single, Bring Your Own Device (BYOD) handset, enabling communications without using the employee’s personal telephone number. Built on CellTrust’s SecureSMS® and SecureVoice™ technologies, this seamless solution also enables a secure connection for internal communications between SL2 users. This application is vital for enterprise communications that need to meet eDiscovery and compliance requirements. Any names or other personal data displayed are fictional and not based on real individuals. For use under patents: https://www.celltrust.com/SL2patents. ## Key features - 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 ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/celltrust-sl2/id1170300972/reviews.md ### 1/5 — Terrible *2025-09-22* Had to get this app for work got random calls and text every single day even after getting a new number. Thankfully I was able to get rid of it and now I get a message that it’s just going to auto download it onto phone every single day and I have to click cancel. This is on the verge of harassment to try to download onto my phone after I’ve deleted it. This may be the worst app ever created. If it doesn’t go away I’m going to report it to the bbb. No other app does tries to download onto my phone after I’ve deleted it. **Developer response:** We are very sorry to hear you have had such an experience. It sounds like your IT department set up an auto install policy of the SL2 app for your personal or corporate owned mobile phone. Please reach out to them and explain what is happening so they can appropriately adjust the mobile device policy for your phone to balance both yours and the company’s requirements. SL2 is successfully used by thousands of people working in highly regulated industries where recordkeeping of business-related mobile communications is required, and it only tries to keep downloading if your IT department set it up to do so. SL2 does have a feature to block suspicious and unwanted inbound calls or messages on your CellTrust Mobile Business Number to enhance data security and protect staff, so if you decide to give it another try, that may help with those unwanted communications. Hope this helps! ### 1/5 — Horrible! *2025-01-02* Many many problems with this app. Calls are grainy and sound there are dropped calls. When you put someone on hold you sometimes they’re not able to get them back. The message function is worthless. I have to retype the message several times because it erases itself as soon as you touch the screen of your phone to scroll up or scroll down to see what you have written the message disappears. I have to go back and retype it again and trust that I’ve done it correctly because I don’t dare touch it again because it’ll erase it yet again over and over it will erase your message if you touch the screen horrible! I would NEVER use this App if my firm did not require it! **Developer response:** Thank you for letting us know you are experiencing these issues, and we are sorry for any inconvenience you have experienced. Since we have not heard others reporting similar issues, we would appreciate you reaching out to your CellTrust Administrator who can escalate your issues to CellTrust Support so that we can help ensure a better experience for you moving forward. ### 1/5 — App is very inconsistent and unreliable *2023-10-19* I routinely experience delayed message delivery. Today it was an on time message this morning alerting me to three messages which were NOT delivered over the previous two days. I’ve re-installed the app 4 separate times and the bugs remain. **Developer response:** We are sorry for any inconvenience you may have experienced. Please ensure that your app notification settings for CellTrust SL2 are configured to allow notifications for new messages and calls. For further assistance, please reach out to your CellTrust Administrator who can escalate your issue to CellTrust Support. ### 1/5 — Garbage app *2023-05-03* Continue to miss messages, voicemail and calls. Notifications don’t work. You have to constantly check the app and listen to voicemail tk see if you have voicemail messages. Also if you happen to be listening to music and get a text message on CellTrust it pauses the music. It’s the only app that does that. Garbage. Fix the bugs. **Developer response:** We are sorry for any inconvenience you may have experienced. Please ensure that your app notification settings for CellTrust SL2 are configured to allow notifications for new messages and calls. For further assistance, please reach out to your CellTrust Administrator who can escalate your issue to CellTrust Support. ### 5/5 — Love it..great company! *2017-04-19* I love the how simple it is to use, the support and the peace of mind of secure texting and voice. ## Frequently asked questions about CellTrust SL2 ### What is CellTrust SL2 used for? CellTrust SL2 is used to assign a Mobile Business Number (MBN) to your device, keeping personal and business communications separate. It enables secure internal messaging and voice calls, crucial for enterprise compliance and eDiscovery. ### Does CellTrust SL2 work on personal devices? Yes, CellTrust SL2 is designed to work on Bring Your Own Device (BYOD) handsets, allowing employees to use their personal phones for business communications without revealing their personal number. ### What security features does CellTrust SL2 offer? CellTrust SL2 is built on CellTrust’s SecureSMS® and SecureVoice™ technologies, ensuring secure internal communications between SL2 users. This is vital for enterprises requiring secure communication channels. ### Is CellTrust SL2 suitable for compliance requirements? Yes, the application is vital for enterprise communications that need to meet eDiscovery and compliance requirements. It provides a secure and traceable communication method for businesses. ### What devices support CellTrust SL2? CellTrust SL2 is supported on iPhone, iPad, and iPod devices. It is designed for mobile enterprise use across Apple's iOS ecosystem. ### How often is CellTrust SL2 updated? The latest version of CellTrust SL2 is 7.51.2, last updated on March 25, 2026. This indicates a commitment to regular updates and maintenance for the application. ### What is the user rating for CellTrust SL2? CellTrust SL2 has a user rating of 3.2 stars from 27 ratings. This suggests a mixed user reception, with some users finding value and others experiencing issues. ### Does CellTrust SL2 have ads? No, CellTrust SL2 does not contain advertisements. As a free enterprise application, it focuses on providing core communication features without ad interruptions. ## Version history (last 5 releases) ### 7.57.2 — 2026-07-24 -Performance, stability, and usability improvements ### 7.53.2 — 2026-05-26 -WhatsApp Calling Support – Users can send a WhatsApp calling template for inbound calls -Emoji Reactions - React to messages on SL2 channel -Reply to Specific Messages - Reply to individual messages in chat -Email Notification Overrides - User-level controls for unread message notifications -Contact Sorting - New sorting options for contacts and groups by date -Performance, stability, and usability improvements ### 7.51.2 — 2026-03-25 -Performance, stability, and usability improvements ### 7.49.2 — 2026-03-02 -Liquid Glass support -Improved call accuracy and international number handling -Search call history and voicemails by phone number -Groups and contacts update more reliably in real time -Added landscape support for dialpad and in‑call screens -Performance, stability, and usability improvements ### 7.47.2 — 2025-12-09 -Accessibility: ADA/WCAG compliance audit (Serious issues addressed). -SDK Updates: Linphone SDK (v5.4.36). -UI/UX Enhancements: Dark Mode support, Light Mode for call screens, Conversation edit mode improvements, Haptic Touch for Tab Bar, Push token fix. -Voice & Call Features: CallLog improvements (MBN handling), Voicemail offline access, international call prefix (011), hide Voice-only MBN option. -Other Functionalities: Upgrade MSAL library, add Call & Message History to contact profiles, location description in Info Plist. ## Apps similar to CellTrust SL2 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Artlogic](https://appshunter.io/ios/app/artlogic/id1667609500) | 5.0 (2) | Free | Business | | [Usiminas - Extranet Mobile](https://appshunter.io/ios/app/usiminas-extranet-mobile/id1662385060) | — | Free | Business | | [Virtual Number for WA Business](https://appshunter.io/ios/app/virtual-number-for-wa-business/id1663338780) | 4.3 (247) | Free | Business | | [AAWA Meetings](https://appshunter.io/ios/app/aawa-meetings/id6444048080) | — | Free | Business | | [Humu](https://appshunter.io/ios/app/humu/id6443742620) | 3.0 (2) | Free | Business | | [CRGO](https://appshunter.io/ios/app/crgo/id6443815000) | — | Free | Business | ## More apps by CellTrust Corporation - [CellTrust SL2 for BlackBerry](https://appshunter.io/ios/app/celltrust-sl2-for-blackberry/id1170302161) - [CellTrust SL2 for Microsoft](https://appshunter.io/ios/app/celltrust-sl2-for-microsoft/id1442087513) - [CellTrust SL2 for Ivanti](https://appshunter.io/ios/app/celltrust-sl2-for-ivanti/id1532258251) All apps by CellTrust Corporation: https://appshunter.io/developer/516410103 ## Related topics [celltrust sl2](https://appshunter.io/ios/topics/celltrust-sl2) · [celltrust sl2 for microsoft](https://appshunter.io/ios/topics/celltrust-sl2-for-microsoft) · [bmobilego](https://appshunter.io/ios/topics/bmobilego) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*