Webview+BLE application IOS/Android

Budget: 22000 UAH Deadline: 10 days

Hello,
Time estimate: ~2 weeks (10-12 working days)
Days 1-3: Setting up WebView and displaying the interface.
Days 4-7: Implementing BLE (scanning, connecting, Android/iOS permissions).
Days 8-10: Connecting Web and BLE (integrating commands).
Days 11-12: Testing (handling connection drops) and final assembly.

Stack: Flutter (iOS + Android from a single codebase, possibly writing a module in native).
WebView: Using flutter_inappwebview. This allows injecting JavaScript handlers.
Your web interface calls window.flutter_inappwebview.callHandler('sendCommand', data), Flutter intercepts this, sends the command to the device via BLE, and returns the result back to JS.
BLE (Bluetooth): Using proven libraries to work with GATT characteristics.

I know the nuances of working with BLE on Android (the need for BLUETOOTH_SCAN, ACCESS_FINE_LOCATION permissions for older versions) and iOS (NSBluetoothAlwaysUsageDescription).

I will implement a command queue so that data is not lost when buttons are pressed quickly in the web interface.

I have experience in developing mobile applications that interact with hardware (IoT). I understand the difference between Write with Response and Write without Response, as well as how to correctly handle device disconnections.

Question: Do you already have documentation on GATT (UUIDs of services and characteristics)? I can review it and provide an accurate time estimate.

I am ready to start working.

Best regards, Kateryna Expand

Budget: 27000 UAH Deadline: 5 days

Is it possible to create an effective mobile application for device management without Wi-Fi? Yes, and I am ready to help you with this! Based on my experience in developing cross-platform applications, I can ensure seamless operation of WebView and BLE technologies, combining them through JS-to-Native bridges for direct interaction with your device. Using modern frameworks such as React Native, I will develop a solution that meets your requirements and provides users with ease and reliability in operation. Let's discuss the best solutions for your project!

Budget: 21991 UAH Deadline: 15 days

Hello

I am ready to get started. The task is clear and normal for a production MVP.

I will create a cross-platform application for iOS 14+ and Android 7+ where the main interface opens inside a WebView, and device control works via BLE even without Wi-Fi.

I suggest using the Capacitor or React Native stack. If you already have a web interface and it is important to quickly and accurately integrate it with a JS ↔ native bridge, then Capacitor is usually the fastest and most stable option.

What I will do in terms of functionality:
An application with a WebView that loads your URL or local build, with support for cookies, JS, and responsive design.
A BLE module that scans, connects to the required device, pairs if necessary, and exchanges data through your GATT characteristics.
A JS to Native bridge so that the web interface can call functions like connect, scan, sendCommand, readStatus, and receive responses back in JS in the form of promises or events.
Error and status handling so that it is always clear in the web interface what is happening: no Bluetooth, no permissions, device not found, connection lost, timeout.

As a result, you will receive:
An application that works as a shell over your web UI and additionally provides standalone BLE control.
Compiled builds and source code.
A short documentation on the bridge and examples of calls from JS.

To estimate the timeline and start immediately, please send:
BLE specification, GATT services, characteristics, and command format.
What logic is in the web, what specific actions should go to BLE.
Is the web interface a URL or will you provide a build that needs to be placed locally?
Is a background connection needed or is it sufficient to work only when the application is open?

I can start immediately after receiving the BLE documentation and access to the web interface. Expand

Budget: 26990 UAH Deadline: 29 days

Good day!
My name is Valentin, and I represent Arctic Web Agency. We are a team of experienced web developers who specialize in creating modern and effective web solutions for businesses. I can provide examples of our similar work in personal messages. We are ready to take your project to work!

Sincerely,
Arctic Web Team
Freelancehunt

Budget: 27000 UAH Deadline: 4 days

Hello. I am ready to complete this project and have extensive experience in developing various applications.

Budget: 1999 UAH Deadline: 1 day

Hello! I am ready to implement your device management application. I have experience working with BLE and integrating web interfaces into mobile applications. I will use Flutter or React Native for stable communication with the device. I will set up command transmission from your web interface to the native BLE module via JavaScriptChannel to ensure seamless control. I will implement correct scanning, connection, and data exchange according to your GATT protocol, taking into account the specifics of permissions on Android and iOS.

Can we discuss the details of your BLE protocol and command structure? My portfolio: Freelancehunt

Budget: 27000 UAH Deadline: 30 days

Good day. I am ready to help you with the creation of an application (Flutter). Write to me, I will be glad to cooperate.

Budget: 12345 UAH Deadline: 1 day

Hello, I have experience in implementing various applications on Flutter/React Native. I would be happy to help you!