Sat vs TR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sat
Transform your iPhone into a satellite phone, extending your reach beyond cellular networks. Experience clear voice calls with reliable connectivity through a satellite hotspot. Requires a Sat-Fi unit and an active airtime plan.
- Satellite phone functionality
- Crystal-clear voice quality
- Seamless connectivity
- Works with Sat-Fi hotspot
- Extends reach beyond cellular
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Sat-Fi Voice turns your iPhone into a satellite phone. Take your iPhone beyond cellular with the world’s most reliable satellite hotspot and enjoy affordable crystal-clear voice quality with seamless connectivity. The App is available for Free to Sat-Fi users with the following requirements: •Sat-Fi Unit •Active Globalstar satellite airtime plan •Sat-Fi App username and password
TR
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This is a Bluetooth low energy (BLE) application for GlobalSat TR-520 configuration. By synchronizing with your TR-520, you can check the FW/APP versions and current settings. Also, you can adjust device settings to fulfill different user scenarios. With this application and TR-520, we believe you will have a better experience. Functions: Basic Information FW version / APP version Cellular settings Device settings Security setting Firmware upgrade Support iOS 11 or above.
Screenshots
Verdict
The clearest difference is update cadence: TR at every 5 days against Sat's every 2 months. Sat's advantage is iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support 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.
Sat ships an update every 2 months, TR every 5 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | Sat | TR |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (6 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 31 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | Globalstar Inc | Globalsat Technology Corporation. |
In-app purchases
Sat
No in-app purchases
TR
No in-app purchases
