One install replaces a bag of basics
Bubble, linear, plumb, slope, and reference angle — all built in, all free.
Five precision tools.
One app.
Free.
ProLevel turns your phone into a complete leveling toolkit — bubble level, linear level, plumb bob, slope calculator, and reference angle matching. No subscriptions. No account.
Get ProLevel on Google Play
5
Precision Tools
Free
No subscription
0
Accounts required
$0.99
Remove ads (optional)
Why ProLevel
Built like a real tool.
No subscription. No account. No catch.
Core tools are always free. The only optional purchase is a one-time $0.99 to remove the banner ad.
Motion sensors only. Nothing else.
No camera, no location, no account. Preferences stay on your device.
Works outdoors, with gloves, in any orientation.
Large touch targets, brightness boost, wake lock, and screen reader support keep it usable on the job site.
Feature Highlights
Five precision tools.
Full circular spirit level
Track pitch and roll simultaneously with color feedback — just like a physical level.
Single-axis leveling
Angle, rise per foot, and mm/m readouts in portrait or landscape.
True vertical alignment
Color feedback guides you to true vertical for walls, posts, and framing.
Grade, rise, and ratio
Percent grade, rise per foot, and 1:X ratio with a visual slope indicator.
Match any target angle
Lock a target angle, then see the live difference for precise bevels and custom cuts.
Fast and dependable
Use ProLevel flat or upright in any orientation and keep measurements readable in real work conditions indoors or outdoors.
Screenshots
See how ProLevel looks in action
Explore the core tool views that make ProLevel easy to read and quick to use.
Power Features
Made for serious measuring work
What ProLevel includes
ProLevel goes beyond the core tools with features designed to make measurement faster, clearer, and more satisfying in everyday use.
- Tone alert and single haptic pulse when level is reached
- Reading lock, long-press quick capture, and MAX angle tracking
- Angle log with up to 20 readings per session and export support
- Stable / Moving / Shaking indicator for better confidence in readings
- Adjustable level zone sensitivity from 0.1 deg to 2.0 deg
- Brightness boost, wake lock, metric and imperial units, and precision toggle
- Calibration that persists across restarts plus up to 5 named calibration profiles
- Light and dark mode with 17 premium themes across 5 packs
FAQ
Quick answers before you download
These are the most likely questions from first-time users checking the app page or Play Store listing.
Do I need to calibrate ProLevel?
Calibration is available for maximum accuracy and the app can save named calibration profiles, but you can start using the tools immediately after install.
What does the Remove Ads purchase do?
It permanently removes the bottom banner ad in portrait mode. It does not lock or unlock any core measurement feature.
What permissions or data does ProLevel use?
The app uses motion sensors for measurement and can use vibration, wake lock, and internet access for ads. It does not require camera, microphone, or account access.
Is there an iOS version?
Not yet — ProLevel is Android only for now. An iOS version is planned. If you want it sooner, letting us know through Discord or the contact form helps prioritize it.
Need Help?
Questions about ProLevel, purchases, or future updates?
Reach out through the main site contact form or jump into the Tony's Bytes Discord if you want faster feedback.