The bubble level app you can calibrate on any table
Loodis turns your Android phone into a spirit level, angle meter and plumb line. Lay it flat, stand it on its edge or hold it against the wall – Loodis knows which way it is used and shows the right level.
Everything a level should do – and a bit more
Surface level
A round bullseye for tables, appliances and floors. Shows both directions at once and which edge to raise.How to level a washing machine with your phone →Edge level
Stand the phone on its long side for shelves and frames, like a classic spirit level tube.How to level a shelf with your phone →Plumb against the wall
Hold the phone to a wall, door frame or post to see how far it leans from vertical.How to hang a picture straight →Calibrate without a level table
Loodis cancels the tilt of the table by turning the phone around on the same spot. Any table will do.Calibrate your phone level on any table →How many millimetres to raise
See the slope in %, mm per metre or 1:x and how much to raise one end of a shelf of any length.Slope in percent, mm per metre and 1:x →Camera level
A true level line over the camera picture – check walls, posts and stairs from a distance and save photos with the line.Camera level: a true line over the picture →Accurate because it is calibrated – on any table
Every phone sensor is a little off, and a case or camera bump tilts the phone further. Most level apps ask you to calibrate on a surface that is already level – which is exactly what you don't have.
Loodis measures the phone screen down, turns it around on the same spot and measures again. The tilt of the table cancels out, the error of the phone stays – and is removed. Spoken instructions guide you through four short steps.
Green when it is level
Loodis shows the reading as a large number and says what to do: raise the left edge, raise the top edge. When it is level, the phone vibrates – and with Pro the whole screen turns green, so you can see it from across the room or from outside a camper.
The sound guide (Pro) beeps faster on one side and slower on the other, like a laser level receiver, so you can adjust without looking at the screen.
Hold the reading – see it in millimetres
Lay the phone on the shelf, worktop or pipe and press Hold. The held reading shows the tilt in every unit and how many millimetres the real object is off level – for example 9/16 in / 4 ft. With Pro you set the length of the object right in the held view.
Take a screenshot and send it to a builder, landlord or customer – the Loodis name and the time are on it, so everyone knows what was measured.
Free and Pro
The level, plumb line, hold and full calibration are free for good. Pro is a single in-app purchase – no subscription. Every Pro feature can be tried three times for free.
| Feature | Free | Pro |
|---|---|---|
| Surface, edge and plumb level in degrees | ✓Yes | ✓Yes |
| Calibration on any table (screen down and back) | ✓Yes | ✓Yes |
| Hold the reading with time | ✓Yes | ✓Yes |
| Vibration when level, tolerance you choose | ✓Yes | ✓Yes |
| Camera level with photos | 3 free tries | ✓Yes |
| Slope in %, mm/m and 1:x, raise by millimetres | 3 free tries | ✓Yes |
| Zero on any surface | 3 free tries | ✓Yes |
| Full-screen green when level | 3 free tries | ✓Yes |
| Sound guide | 3 free tries | ✓Yes |
| Side and upright calibration, corner guide | — | ✓Yes |
Guides
How to level a shelf with your phone
Hang a shelf level and see how many millimetres to raise one end.→How to level a washing machine with your phone
Stop a washing machine shaking: level it with your phone in five minutes.→How to level a camper with your phone
Level a camper or caravan side to side and front to back – green when done.→How to hang a picture straight
Hang pictures and mirrors straight and check door frames for plumb.→How accurate is a phone level?
What limits a phone level, how calibration helps and a 30-second test.→Questions
Is Loodis free?
Yes. The bubble level, edge level, plumb line, hold and calibration are free, with no ads and no account. Loodis Pro is an optional one-time purchase, and every Pro feature can be tried three times for free.
How accurate is a phone level?
Loodis shows the tilt to 0.1°. How close it gets depends on the sensor of your phone; calibration removes its fixed error. For furniture, shelves, appliances and pictures it is more than enough. Read more about accuracy.
Do I need a level surface to calibrate?
No. Loodis turns the phone around on the same spot during calibration, so the tilt of the table cancels out. Any stable table works.
Does Loodis work on tablets and in other languages?
Yes. Loodis works on Android phones and tablets and speaks 18 languages, including English, German, Spanish, French, Portuguese, Italian, Polish, Japanese and Korean.
Measure it with Loodis
Bubble level for Android. Calibrate on any table, read the tilt in degrees and try every Pro feature three times for free.