CellTrust SL2 vs RocketVox Next
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CellTrust SL2
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.
- 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
Read full descriptionHide full description
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.
RocketVox Next
This business communication app offers a powerful desk phone replacement with features like team status, real-time chat, call history, and voicemail. It also supports SMS, MMS, RCS messaging, and instant call forwarding to other devices.
- Ultra High Performance Phone
- Team Status Directory
- Real-time Team Chat
- Call History with Tags & Notes
- Real-time Queue Monitoring
- Company & Individual Contacts
- SMS, MMS, RCS Messaging
- Instant Call Forwarding
Read full descriptionHide full description
Welcome to RocketVox Next! Our amazing new app, a powerful, easy to use desk phone replacement or companion to our next level business phone system experience, featuring: - New Ultra High Performance Phone - Directory: See Team Status at a glance - Channels: Chat and Share with your Team in Realtime - History: Infinite scrolling with Tags + Notes plus listen to recordings - Queues: Realtime monitoring including easy agent login - Contacts: Company, individual, or shared contacts with call tracking - Voicemail: Quick play features and instant archiving - Fax: Converts all popular document types - Messaging: Supports SMS,MMS, and RCS standards with delivery confirmation, automatic replies and automatic messages to missed callers - Snap: Instantly send calls to other devices, including desktop phones - Passwordless, no hassle multi-factor authentication for easy deployment The official app for our award winning business phone service. Since 2005 RocketVox has been a leading VoIP cloud service provider with the best features, the lowest prices, 99.999% uptime and fanatical customer support, we love our customers!
Screenshots
Verdict
The clearest difference is rating: RocketVox Next at 5.0 against CellTrust SL2's 3.2. RocketVox Next also leads on update cadence (every 8 days vs every 2 months). CellTrust SL2's advantage is ratings volume (27 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RocketVox Next 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 3, so its average is the more settled of the two.
CellTrust SL2 ships an update every 2 months, RocketVox Next every 8 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | CellTrust SL2 | RocketVox Next |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (27 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 27 — better | 3 |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 130 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | CellTrust Corporation | HeavyLogic |
Customer experience
CellTrust SL2
RocketVox Next
In-app purchases
CellTrust SL2
No in-app purchases
RocketVox Next
No in-app purchases
Questions
Is CellTrust SL2 free?
Is RocketVox Next free?
Which has better reviews, CellTrust SL2 or RocketVox Next?
Do CellTrust SL2 or RocketVox Next have ads?
Which is updated more often, CellTrust SL2 or RocketVox Next?
Other comparisons















