# TR-520

> TR-520 (iPhone/iPad app by Globalsat Technology Corporation..)

- Source: https://appshunter.io/ios/app/tr-520/id6449723121 (this page in markdown: same URL + `.md`)
- Developer: [Globalsat Technology Corporation.](https://appshunter.io/developer/624997558)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 17+
- Requires: iOS 11.0 · 3 MB
- Languages: English
- Released: 2023-11-08
- Data updated: 2026-06-10
- User reviews in markdown: https://appshunter.io/ios/app/tr-520/id6449723121/reviews.md

## What is TR?

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.


## Version history (last 2 releases)

### 1.1 — 2023-11-14

BUG FIX

### 1.0 — 2023-11-09

No release notes.

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## More apps by Globalsat Technology Corporation.

- [ezfinder mobile](https://appshunter.io/ios/app/ezfinder-mobile/id1050024908)
- [GW-Sport](https://appshunter.io/ios/app/gw-sport/id1194374217)
- [LT-20](https://appshunter.io/ios/app/lt-20/id1492856834)
- [ST-20](https://appshunter.io/ios/app/st-20/id1494673055)
- [LT-520](https://appshunter.io/ios/app/lt-520/id1550725680)
- [NT-20](https://appshunter.io/ios/app/nt-20/id1554013654)

All apps by Globalsat Technology Corporation.: https://appshunter.io/developer/624997558

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*