Available on iOS & Android

Connect Any Bluetooth Thermometer

Monitor temperature from any Bluetooth thermometer — BLE or Classic — right on your phone. Live readings, real-time graphs, and developer tools.

Get it on Google Play

Download on the App Store

Bluetooth Thermometer home screen showing 36.6°C reading with live graph

10K+

Downloads

BLE + Classic

Bluetooth Support

2 Modes

Consumer & Developer

0

Cloud Dependencies

Features

Everything You Need, Nothing You Don't

A powerful thermometer app that works with any Bluetooth device. No accounts, no cloud, no lock-in.

Live Temperature Display

Large, beautiful gauge with real-time readings. See current, min, average, and max temperatures at a glance.

Real-Time Charts

Watch temperature trends unfold with a live-updating graph. Track patterns over time as your device streams data.

Serial Monitor

View raw data from your device in hex, ASCII, and decimal. Essential for debugging DIY hardware projects.

Fully Customisable

Light and dark themes, Celsius and Fahrenheit, Consumer and Developer modes. Make the app work the way you want.

Two Modes

Built for Everyone

Whether you're monitoring BBQ temperatures or debugging your Arduino project, there's a mode for you.

Consumer Mode

Simple & Beautiful

A polished temperature display with everything you need, nothing you don't.

Large live temperature gauge
Real-time temperature chart
Auto-detection of BLE thermometers
One-tap Bluetooth connection
Light and dark themes

Developer Mode

Debug & Explore

Full access to raw Bluetooth data for hardware prototyping and testing.

Serial monitor (hex, ASCII, decimal)
BLE service & characteristic explorer
Raw data viewer for debugging
Arduino, ESP32, HC-05 & HC-06 support
Standard 0x1809 BLE Health profile

App Preview

See It in Action

A clean, dark interface designed for readability — whether at the BBQ or the workbench.

Home

Navigation

Settings

Alerts

Multi-Device

Compatibility

Works With Any Device

Unlike brand-locked apps, we connect to any Bluetooth thermometer that sends temperature data.

BLE Health Thermometers

Standard 0x1809 profile devices

Classic Bluetooth Serial

HC-05, HC-06, and similar modules

Arduino

Any Arduino with Bluetooth module

ESP32

WiFi + Bluetooth combo boards

AT-09 / HM-10 BLE

Popular BLE serial modules

DIY Projects

Any device sending text-based readings

Built for Makers

By a Developer,
For Developers

Originally created to test a DIY Arduino thermometer, this app grew into a universal Bluetooth temperature tool. Connect your custom hardware and see exactly what data it's sending.

Perfect for prototyping IoT temperature sensors, testing BLE devices, or just monitoring the BBQ from the couch.

Build your own thermometer

          // Arduino + HC-05 example

          #include <SoftwareSerial.h>

          SoftwareSerial BT(10, 11);

          float temp;

          void setup() {

            BT.begin(9600);

          }

          void loop() {

            temp = readSensor();

            BT.print(temp, 2);

            BT.print("\r\n");

            delay(1000);

          }

Start Monitoring
Temperature Today

Free to download. No account required. No cloud dependency. Your data stays on your device.