Monmouth Telecom vs CellTrust SL2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monmouth Telecom
Make and receive business calls from your mobile device, appearing as if you are in the office. Protect your personal number by displaying your corporate caller ID for outbound calls. Easily manage call forwarding with a single tap.
- Place and receive office calls on mobile
- Mask personal phone number
- Display corporate caller ID
- Enable/disable call forwarding
- Seamless office-to-mobile transition
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Break the chain to your desk! With this app you can place and receive calls on your cell phone as if you were sitting in the office. Your coworkers and clients will not know the difference if you are on the road or at your desk. With a single tap you can enable and disable call forwarding to your cell phone. Protect your personal cell phone number Often we are away from our office but need to place a work related phone call to a client. However, we do not want the client to learn our personal cell phone number. With this app the corporate caller id of your choice will appear when you place outbound calls. https://monmouth.com/privacy_policy
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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: Monmouth Telecom at 60% against CellTrust SL2's 20%. Monmouth Telecom also leads on rating (3.5 vs 3.2) and update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases 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.
Monmouth Telecom holds the better App Store score, 3.5 against 3.2. Both are backed by a comparable volume of ratings — 12 and 27 respectively. Written reviews point the same way: 60% of Monmouth Telecom's written reviews are positive against 20% of CellTrust SL2's.
Monmouth Telecom ships an update every 3 weeks, CellTrust SL2 every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Monmouth Telecom | CellTrust SL2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (12 ratings) — better | 3.2 (27 ratings) |
| Positive reviews | 60.0% of reviews — better | 20.0% of reviews |
| Number of ratings | 12 | 27 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 66 MB | 130 MB |
| Age rating | 4+ | 4+ |
| Developer | Monmouth Telecom | CellTrust Corporation |
Customer experience
Monmouth Telecom
CellTrust SL2
In-app purchases
Monmouth Telecom
No in-app purchases
CellTrust SL2
No in-app purchases
Questions
Is Monmouth Telecom free?
Is CellTrust SL2 free?
Which has better reviews, Monmouth Telecom or CellTrust SL2?
Do Monmouth Telecom or CellTrust SL2 have ads?
Which is updated more often, Monmouth Telecom or CellTrust SL2?
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