# BluetoothLE RTK

> BluetoothLE RTK (iPhone/iPad app by Navisys Technology Corp..)

- Source: https://appshunter.io/ios/app/bluetoothle-rtk/id1599429026 (this page in markdown: same URL + `.md`)
- Developer: [Navisys Technology Corp.](https://appshunter.io/developer/954176603)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.4 · 13 MB
- Languages: English
- Released: 2023-02-15
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/bluetoothle-rtk/id1599429026/reviews.md

## What is BluetoothLE RTK?

1. Support GR-9029/GR-9028 Bluetooth LE GNSS receiver
2. App receive correction data from reference station and forward to receiver.
3. Receiver calculate the data and decide it's precision position, then send GGA to App  
4.Finally App  draw the position in map.

App is a utility tool for testing the receiver.
a.Relative position measurement
GR-9029 have a button in it.
User press the button ,then App will draw a pin in map.
When user press again , the App draw a new pin and show the distance between two pin  (If "distance measurement" function is enable)
b. Absolute  position measurement.
Receiver is placed on a known position. User can compare the known position with the coordinate show in map.
c.Benchmark with other receiver
App support "Log" function , it can record entire path .
User can compare the path with others and check the deviation


## Version history (last 5 releases)

### 2.6 — 2024-05-03

1. add ARP/PCO Setting
2.Measurement improve(Geodesic/Ground distance)

### 2.5 — 2024-01-03

1. Modify  keyboard type of  textfields (like "Latitude","Longitude", "Height").

### 2.4 — 2023-12-28

1. Adjust timing for resend CMD.

### 2.3 — 2023-12-27

1. Support CMD to  "setting GR9028 as  GNSS  reference station with  assigned latitude/longitude/height".
PS:only  for GR-9028 with new firmware.

### 2.2 — 2023-12-14

1.define "imported file type" for  KML file.
Fixed the issue "can not view kml files when use Document Picker".

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [ALIGN RTK-1](https://appshunter.io/ios/app/align-rtk-1/id6480390141) | — | Free | Utilities |
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| [Photogram.pro](https://appshunter.io/ios/app/photogrampro/id6444218162) | — | Free | Utilities |
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## More apps by Navisys Technology Corp.

- [helpYou24](https://appshunter.io/ios/app/helpyou24/id954176604)
- [esgps](https://appshunter.io/ios/app/esgps/id1063635923)
- [ego2up](https://appshunter.io/ios/app/ego2up/id1140422620)

All apps by Navisys Technology Corp.: https://appshunter.io/developer/954176603

## Related topics

[bluetoothle rtk](https://appshunter.io/ios/topics/bluetoothle-rtk)

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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 2026-05-14.*