Quickly check level and measure angles with Angle Pro. A precision tool designed for you.

Angle Pro is an accurate angle meter and level app. Able to measure angles with +-0.2º to +-0.3º accuracy depending on your device.

A-pro features:
• Accurate angle meter with memory function
• Instant percent of slope calculation for angles 0º to 85º
• Store up to 12 angle readings
• 7 color schemes
• Level function with visual and sonic feedback at 0°, 90°, 180°, and 270°
• No calibration required, always ready
• Integrated help
• Functional and intuitive design
• Fully optimized for touch interface

Angle Pro can be used in construction, carpentry, plumbing, electrical, mechanic, engineering, architecture, sports, DIY projects, and any task where an accurate level and angle meter tool is needed.

Upgrade Angle Pro with:
• Percent of slope calculator
• Memory Pack and store up to 12 angle readings
• Color Pack and toggle between 7 color schemes

What’s New

Version 2.3

Small corrections.

Ratings and Reviews

3.2 out of 5
29 Ratings

29 Ratings

dobratz ,

Great app

A very helpful app that I use daily in surgery to insure that the patient is at perfect angle. Please update for iPhone X! I can’t get out of app because X has no home button.

Knife Sharpener Noob ,

Extremely Happy with App!!!

So I'm ordering a knife sharpening system, which benefits from being able to check ACTUAL angles vs the angle markings provided on the sharpening system. So I downloaded this free app:
It's very accurate and stable, even showing .1 degree changes. It has a very clean interface. It uses either the side of the phone or the back of the phone to calculate angles from (selectable by an on-screen icon). It isn't flooded with adds. It's very responsive. I can't find a single complaint at all. It's not a trigonometry/calculating app, but I don't desire/need that. I was immediately impressed, compared it to other free apps, then deleted those other free apps: for the above reasons TOGETHER, this, to me, is the superior app of those I compared.
Thank you developer! A surprisingly great, non-annoying free app.

E & N Engineer ,

Accurate level

Excellent level and angle application. Even reads accurate with a protective rubberized case on iPhone. Often compare it with a 7 foot spirit level by placing it on top or on the side for vertical applications and so far they always read exactly the same. Use it a lot and I am very pleased.


15.6 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Memory Pack upgrade $2.99
  2. Color Pack upgrade $1.99
  3. Full Upgrade $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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