ISS iGuard vs SAT Messenger
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ISS iGuard
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ISS iGuard is a revolution in 24 hour personal security protection. Whether you are a shift worker, out on the town, working in a dangerous location or area, or want to know that your family is safe, then ISS iGuard is for you. Simply download the App onto your smart phone, follow the prompts and you are ready to go. When you need the protection of ISS iGuard you login to the App and you are then being monitored. If you are concerned for your safety then simply shake the phone and ISS iGuard will do the rest. You emergency contacts will be sent an SMS of your present location and your emergency escalation requirements will be activated. Video and Audio of your situation is sent to the ISS iGuard cloud and on to your contacts. If you have made a mistake you can cancel your emergency by keying in your PIN and your contacts will be updated. ISS iGuard cab also look after your business requirements monitoring and protecting your employee offering a complete business solution and compiles with BS8484 OH&S standards. Users can login to the ISS iGuard portal via the website to manage their account, update their profile and view alerts. Businesses can monitor the safety of their employees directly to existing computer systems with internet access. ISS iGuard is a total personal solution for you. Continued use of GPS running in the background can dramatically decrease battery life.
SAT Messenger
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Satellite Messenger is a personal satellite communication and location-tracking device app.It provides global satellite coverage in all regions except the North and South Poles. The app supports two-way satellite text messaging, one-touch SOS emergency alerts, location sharing, weather updates, and route tracking, making it a reliable companion for outdoor adventures and remote travel.
Screenshots
Verdict
The clearest difference is update cadence: SAT Messenger at every 2 weeks against ISS iGuard's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ISS iGuard ships an update every 4 months, SAT Messenger every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | ISS iGuard | SAT Messenger |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 2 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 14.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 95 MB | 51 MB |
| Age rating | 4+ | 17+ |
| Developer | Infratec Security Systems | phwy |
In-app purchases
ISS iGuard
No in-app purchases
SAT Messenger
No in-app purchases









