GDS CATS vs SecureVOIP
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
GDS CATS
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The GDS CATS app allows you to communicate with your central station or dispatch center that is running the GDS Security Response software. Use this app for a monitored lone worker solution. Please note that your central station or dispatch provider must be running the GDS Security Response software for this app to work. Please confirm with them that they are compatible before installing this app.
SecureVOIP
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SecureVOIP allows users to move away from traditional 'fixed' lines or handsets to their existing smartphone device without losing any of the rich features they have come to expect from your existing phone system. By utilising our Cloud PBX features. businesses or individuals can now rid themselves of their inflexible, expensive handsets or fixed phone systems and move all or even just some of their lines onto existing mobile phones at no extra cost. All you need is: - An iPhone or iPad handset - An internet connection - A headset for best audio quality - A VOIP account and phone number Benefits: - Easy to use - Free of charge - Quick and Simple Installation - Control all your call settings from right inside the App - Rich Cloud PBX features - High Definition Video Calling and Conferencing - Secure - supports TLS and SRTP - Opus codec support for dynamic adaptive call quality - High Definition Wideband Voice (Opus & G.722) and Video (H.264) - Conferencing, 3 way calling and call transfers - Mute, Speakerphone, Integration with existing contact lists - Push notification support for background operation - Internal Contact Presence and BLF support - Group/Cloud contact directory
Screenshots
Verdict
The clearest difference is iOS requirement: SecureVOIP at 13.0 against GDS CATS's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GDS CATS ships an update every 24 months, SecureVOIP every 21 months. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.
| Parameter | GDS CATS | SecureVOIP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 24 months | Every 21 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 1 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Stewart | Ray Jackson |
In-app purchases
GDS CATS
No in-app purchases
SecureVOIP
No in-app purchases









