Bubble Level
Bubble Level: Turn Your Phone Into a Precision Spirit Level
Bubble Level by MaslonLabs turns your Android phone into a precise leveling tool — no extra equipment required. It is a free spirit level app for hanging pictures, mounting shelves, installing a TV bracket, or working on any DIY or home renovation project.
Surface Mode: Level Any Flat Surface
Surface mode is a 2D bubble level for tables, countertops, shelves, and floors. Lay your phone flat on the surface and instantly see whether it is level — ideal for furniture assembly, appliance installation, or checking if a table wobbles because of an uneven floor.
Edge Mode: Perfect for Walls & Frames
Edge mode is a 1D level built specifically for vertical surfaces — hanging picture frames, mounting shelves and brackets, or checking that a wall, door frame, or cabinet is truly plumb. It works in both landscape and portrait orientation.
Audio Feedback While You Level
Bubble Level plays a tone that changes as you get closer to level, so you can fine-tune the angle without staring at the screen — useful when you are holding a shelf or frame steady with both hands and need your eyes on the wall, not the phone.
Calibrate for Extra Precision
Bubble Level lets you set your own zero point to calibrate out small inconsistencies caused by an uneven phone case or surface, so your readings stay accurate no matter which phone you are using.
Great For DIY & Home Projects
- Hanging pictures and frames
- Mounting shelves, brackets, TVs, and furniture
- Checking walls and floors
- DIY and renovation projects
Bubble Level vs. a Physical Spirit Level
Bubble Level replaces a physical spirit level for most everyday tasks, since it lives on the phone that is already in your pocket — ready the moment you need to check a picture frame or a shelf bracket, with no extra equipment, no extra cost, and no drawer to dig through.
Why Choose Bubble Level by MaslonLabs
MaslonLabs built Bubble Level to be a fast, no-nonsense utility: open the app, and you have an accurate digital level in under a second. It is a free bubble level app for Android designed for quick, everyday tasks as much as bigger DIY projects.
At a Glance
- Surface mode — 2D level for tables, countertops, and floors
- Edge mode — 1D level for walls, frames, and vertical surfaces
- Audio feedback as you level out
- Calibration to set your own zero point
- Landscape and portrait support in edge mode
- Clean, easy-to-read display
- Made by MaslonLabs, an Android-focused app studio
Frequently Asked Questions
Is Bubble Level accurate enough for real DIY projects?
Yes — it uses your phone’s built-in sensors plus a calibration feature so you can zero it out for extra precision.
Does Bubble Level need an internet connection?
No, it works as a simple, offline utility tool.
What’s the difference between Surface and Edge mode?
Surface mode is a 2D level for flat surfaces like tables and floors; Edge mode is a 1D level for vertical surfaces like walls and frames.
Is it free?
Yes, Bubble Level is free to download, with ads.
Can Bubble Level replace a physical spirit level for most tasks?
For everyday tasks like hanging pictures, mounting shelves, or checking furniture, yes — Bubble Level is accurate enough to replace a physical spirit level for most home and DIY jobs.
Does Bubble Level work on any Android phone?
Bubble Level uses your phone’s built-in motion sensors, so it works on the vast majority of Android devices with a standard accelerometer.
Where can I download the best free bubble level app for Android?
Bubble Level: Spirit Level Tool by MaslonLabs is one of the best free options on Android. Download it directly from Google Play: Bubble Level on Google Play.