Every Bluetooth thermometer and hygrometer in one app, whatever the brand

Name: Dewline
Author: Growing Peas

See the temperature and humidity of every room, fridge and greenhouse in one place. Dewline shows every nearby sensor live, side by side, with no pairing and no hub, and it opens instantly.

Get it on Google Play Android 12 and later · free for every sensor live

Four sensor tiles, living room, bedroom, fridge and greenhouse, each with temperature, humidity, battery and a 24-hour sparkline; the fridge is flagged in red, and a cellar out of range shows its last value, heard 2 hours ago. — Every sensor at a glance, a fridge over its limit, and a greenhouse with its dew point.

The fridge sensor at 41.7 °F with a warning sign beside the temperature, its humidity, battery and dew point, and a 24-hour chart with the lowest, average and highest value. — Every sensor at a glance, a fridge over its limit, and a greenhouse with its dew point.

If you have sensors from several brands, and one app for each

Thermometers and hygrometers from different makers each come with their own app. Dewline mixes brands on one screen, so you no longer need one app per sensor. It reads what your sensors already broadcast, so nothing is ever connected to them or reconfigured.

It works with Inkbird, Govee, ThermoPro, ThermoBeacon, Qingping, SensorPush and Shelly BLU (BTHome) sensors, and Xiaomi sensors running ATC or pvvx firmware. Encrypted Xiaomi sensors are not supported. Dewline is a separate app and not affiliated with Inkbird, Govee, ThermoPro, ThermoBeacon, Qingping, SensorPush, Shelly, BTHome or Xiaomi.

What it does

Shows every nearby Bluetooth thermometer and hygrometer live, with no pairing and no hub.
Dew point for every sensor that reports humidity.
Remembers sensors out of range, with their last value and when they were heard.
Charts with the lowest, average and highest value, and a 24-hour sparkline on every tile.
Alerts above or below the limits you set, sensor by sensor.
Celsius or Fahrenheit, and a home screen widget with the sensors you choose and a trend arrow.

What is free, and what one purchase adds

Free: every sensor live, the last 24 hours with statistics, dew point, alerts while the app is open, names and units.

Pro, one purchase that stays yours: alarms with the screen off, so the phone rings when the freezer warms up or the cellar gets damp; a year of history with week, month and year charts; the change over 24 hours and the pace over the week; CSV export of every reading. Google Play shows the price in your own currency. No subscription, no ads, no account.

Who makes it

I do: one person, on my own, under the name Growing Peas. Mail goes to [email protected] and I answer it myself. There is no account and no cloud: the history stays on your phone, and the app only listens to Bluetooth broadcasts and never asks for your location. The privacy policy says so in full.