Measure exact angles free
On iPhone, the realistic protractor and its exact angle reading stay free without a timer. Android begins with a user-started two-day full trial.
Available now on the App Store and Google Play
See the angle instantly.
Digital Protractor & Level turns your phone into three high-contrast tools: a realistic metal protractor, a glass-vial bubble level, and a laid-flat 4 Corners bullseye. Huge numbers stay easy to read, and the layout rotates with the phone.
Free exact protractor
No time limit
2-day Android trial
$3.99 Pro one time
Works offline
No ads
No subscription
On iPhone, use the exact-angle protractor free without a time limit. On Android, start a two-day full trial when you are ready. Unlock Pro Features once for $3.99 US on either store. There is no subscription or website checkout. Local store pricing may vary.
Read it from across the room
Huge numbers and large controls stay easy to see in bright rooms or dark spaces.
Turn the phone either way
Automatic portrait and landscape layouts follow the job. The protractor and traditional level can use the short or long edge. 4 Corners stays a laid-flat bullseye.
Unlock Pro once
Keep Level, 4 Corners, calibration, Hold, Target, voice, and flashlight with one $3.99 purchase. No subscription, ads, or account.
Protractor
A realistic metal protractor with a lime needle.
Open the app and the exact-angle protractor is ready free. Huge numbers sit over a metal arc with clear markings. Pro unlocks Zero, Hold, Target, voice, flashlight, and the two level tools.
- Huge, high-contrast angle readings
- Automatic portrait and landscape layouts
- Realistic metal protractor and lime needle
- Zero and calibrate against any reference surface
- Hold or hear a measurement while you move
- Set a target angle with haptic guidance
Traditional bubble level
A glass-vial bubble made for the jobsite.
The Pro traditional level uses a realistic spirit-level vial, fluid, and moving bubble, with exact readings and the same Zero, Hold, voice, and flashlight controls.
- Glass-vial bubble that moves with the surface
- Signed angle and clear Level or Adjust status
- Portrait and landscape layouts
- Short-edge or long-edge measuring on this tool
- Independent calibration for each measuring edge
- Restore through the App Store or Google Play
4 Corners
A laid-flat bullseye for tripods and surfaces.
4 Corners is a Pro bullseye level for laying the phone flat. The measuring edge changes automatically with phone orientation, so there is no manual lock control.
- Laid-flat 4 Corners bullseye
- Built for tripods, tables, and surfaces
- Included with the one-time Pro unlock
- No manual measuring-edge lock
- Works offline with no account
Questions
Simple app. Simple answers.
What is free?
The exact-angle protractor is free without a time limit. It automatically follows the phone's orientation.
Is there a free trial?
On iPhone, the basic protractor remains free with no trial. On Android, you can start a two-day full-feature trial when you are ready. The trial does not automatically charge.
What does Pro unlock?
One optional $3.99 US purchase permanently unlocks Level, 4 Corners, Zero, Hold, Target with haptics, spoken measurements, and flashlight. It is not a subscription.
Does it work without internet?
Yes. Measuring works offline. Internet access is only used to load purchase information or restore Pro Features.
Does the flashlight take pictures?
No. Camera permission is used only to turn on the phone's light. The app does not take photos or record video.
Digital Protractor & Level
Measure free. Unlock Pro once.
Free exact-angle protractor on iPhone, a two-day full trial on Android, and one $3.99 Pro Features purchase on either platform. No subscription, ads, account, or website checkout.