# GATTBrowser

> BLE device scanner and communicator with Renesas product support. (iPhone/iPad app by Renesas Electronics.)

- Source: https://appshunter.io/ios/app/gattbrowser/id1163057977 (this page in markdown: same URL + `.md`)
- Developer: [Renesas Electronics](https://appshunter.io/developer/1073878075)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.60/5 from 194 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 9 MB
- Languages: American English
- Released: 2016-10-14
- Data updated: 2026-08-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/gattbrowser/id1163057977/reviews.md

## What is GATTBrowser?

GATTBrowser is the best generic application to scan nearby Bluetooth Low Energy devices and communicate with them. It also provides specific features to communicate with the Renesas Bluetooth Low Energy products.

[Features]
- Scans nearby Bluetooth Low Energy devices
- Displays the Advertising data
- Displays the Received Signal Strength Indication (RSSI)
- Connects to Renesas Bluetooth Low Energy Products as well as other Bluetooth Low Energy devices
- Displays the Services and Characteristics information
- Communicates with Bluetooth Low Energy devices
- Supports Renesas specific Services and Characteristics
- Allows you to register names for custom Service/Characteristic 128 bit UUIDs
- Allows you to edit and/or delete the registerd names for the custom Service/Characteristic 128 bit UUIDs

[Note]
- Supported on iOS Version 12 or later
- Tested on iPhone 6, iPhone 8, iPhone SE (2nd generation) and iPad Air (3rd generation)

Refer to the following about Renesas Bluetooth Low Energy products:
https://www.renesas.com/application/key-technology/bluetooth-low-energy
https://www.renesas.com/products/interface-connectivity/wireless-communications/bluetooth-low-energy

Refer to the following about GATTBrowser User's Manual (R21AN0017):
https://www.renesas.com/document/apn/gattbrowser-ios-smartphone-application-instruction-manual-rev112

## Key features

- Scan nearby BLE devices
- Display advertising data and RSSI
- Connect to BLE devices
- View services and characteristics
- Support for Renesas BLE products
- Register custom UUID names

## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/gattbrowser/id1163057977/reviews.md

### 5/5 — Log

*2026-02-14, version 1.1.6*

Entry

### 5/5 — Great information, but

*2025-11-02, version 1.1.6*

It very well could be a setting on my iPhone, but I can’t read any values unless I screenshot and zoom in. Everything is written in white.

### 1/5 — Not working well

*2025-01-25*

Trying to register UUID returns invalid UUID no matter what I enter in. BT device details are in white font which is super hard to read

### 1/5 — Unusable

*2024-12-29, version 1.1.6*

White text on a light blue background. You can’t read any of the data in the app. I double checked the screenshots in the App Store and you can even see it there if you’re looking for it- otherwise it just looks like there’s no text

### 5/5 — Amazing!

*2024-10-06, version 1.1.6*

Amazing, in-depth BTLE debugging app. Thank you very much!

### 4/5 — Please change font color

*2024-09-01, version 1.1.6*

Everything that comes up for me she has no data but what does come up? I can’t see anyways I was hoping that there is a setting where I could change it or invert colors or something but if you can just change the font color that would be great!

### 4/5 — Dark mode & live feed

*2023-12-27, version 1.1.6*

This is just a awesome app i found on app store. But it has some issues like when dark mode is on text are not visible!! It will be better if there is a separate window/tab for notified characteristics data feed.

### 4/5 — Stable.  Top 2 in features.

*2022-12-13, version 1.1.5*

Apps in the BLE scanning category are notoriously buggy.  This is one of only two iOS BLE apps that I can rely on to work when I need it.  I am not saying there are only two apps that are useable, but only two with this level of features and polish.  Thanks for a good product at the right price point:-)

### 5/5 — (๑•́₋•̩̥̀๑)

*2020-05-11, version 1.1.4*

P

### 2/5 — Sorting animation is horrible!

*2019-08-17, version 1.1.4*

Sorting animation is horrible!

## Frequently asked questions about GATTBrowser

### What does GATTBrowser do?

GATTBrowser is a utility application designed to scan for nearby Bluetooth Low Energy (BLE) devices and facilitate communication with them. It allows users to view device advertising data, signal strength, and connect to various BLE devices, including specific Renesas products.

### What are the key features of GATTBrowser?

Key features include scanning for BLE devices, displaying advertising data and RSSI, connecting to both generic BLE devices and Renesas BLE products, viewing services and characteristics, and the ability to register custom names for 128-bit UUIDs.

### Is GATTBrowser free to use?

Yes, based on the provided information, GATTBrowser is a free application. There are no mentions of in-app purchases or advertisements, indicating it is available at no cost to the user.

### What devices is GATTBrowser compatible with?

GATTBrowser is supported on iOS Version 12 or later. It has been tested on devices such as iPhone 6, iPhone 8, iPhone SE (2nd generation), and iPad Air (3rd generation).

### Who would benefit from using GATTBrowser?

This app is beneficial for developers, engineers, and hobbyists working with Bluetooth Low Energy technology. It is particularly useful for those who need to test, debug, or interact with BLE devices, especially if they are using Renesas Bluetooth Low Energy products.

## Version history (last 5 releases)

### 1.1.6 — 2022-12-16

- Added Support for more Renesas specific Services and Characteristics
- Added Support for Apple specific Services and Characteristics
- Miscellaneous bug fixes
       - Fixed an issue in the Service and Characteristic list display where the RSSI was not updating
       - Fixed an issue in the Service and Characteristic list display where the display breaks down when connected to some devices
       - Added support for 4.0 inch iPhones (e.g. iPhone SE (1st Generation))

### 1.1.5 — 2022-12-12

- Added the Register UUID feature. This Feature allows you to register names for custom UUIDs
- Added the Edit Saved UUIDs feature. This feature allows you to edit and/or delete the UUIDs registered using the Register UUID feature
- Miscellaneous design updates

### 1.1.4 — 2018-02-15

This app has been updated by Apple to display the Apple Watch app icon.

■ The following corrections were made.
- Time stamp display is not displayed correctly when "24-Hour Time" of "Date & time" settings of iOS terminal is OFF.
- There is a case that the data can not be confirmed by forcibly displaying the whole and outputting small when the Transmission / Reception data once is long. The abbreviated display to the right end is displayed, and the whole data is dialog displayed by tapping the history.
- This application may be hardened when Notification / Indication reception frequency is high.
- On the Scan screen of the Advertise device, if you pinch-in after displaying multiple Advertise data, this application may harden.

■  Improved convenience as shown below.
- Characteristic Notation of the number of data in Transmission / Reception data displayed on the operation screen.
- Service UUID is displayed after Service name.

### 1.1.3 — 2018-01-08

We improved the following convenience.
- When returning to the scan screen after connecting to the BLE device, the scan result is discarded and rescan is performed.
- A BLE device that could not detect advertisement for 5 seconds on the scan screen hides the antenna display and RSSI value so that the tap of the connection button becomes invalid.
- In the scan screen, when a non-connectable is detected with advertisement information from a BLE device, a × mark icon indicating connection failure is displayed.
- Improve the response of the connection button on the scan screen.
- On the operation screen after connecting to the BLE device, the Disconnect button displayed at the upper right will switch to Connect after disconnecting.
- Characteristic Displayed the notification window at the bottom of the screen when Notification or Indication is received outside the operation screen.

We fixed the following bugs.
- Fixed a phenomenon in which the antenna mark displayed in the upper navigation bar of the scan screen spreads horizontally in a specific version of iOS.
- Fixed a phenomenon that the information of the RSSI value of all BLE devices is not updated when switching the application to the foreground after about 10 seconds after changing the application while switching the application while displaying the scanning screen.

### 1.1.2 — 2017-07-04

This version has corresponded to the notation of UUID of Scan Response Data newly added to Renesas Beacon stack.

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## More apps by Renesas Electronics

- [Renesas SmartTags](https://appshunter.io/ios/app/renesas-smarttags/id852966612)
- [Renesas SUOTA](https://appshunter.io/ios/app/renesas-suota/id953141262)
- [Renesas SmartConfig](https://appshunter.io/ios/app/renesas-smartconfig/id1504849136)
- [Renesas SmartConsole](https://appshunter.io/ios/app/renesas-smartconsole/id1504850346)
- [Renesas Bluetooth LE Puck](https://appshunter.io/ios/app/renesas-bluetooth-le-puck/id1548966011)

All apps by Renesas Electronics: https://appshunter.io/developer/1073878075

## Related topics

[gattbrowser](https://appshunter.io/ios/topics/gattbrowser) · [renesas electronics](https://appshunter.io/ios/topics/renesas-electronics) · [bzbgear](https://appshunter.io/ios/topics/bzbgear)

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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 2026-08-07.*