Smart Protractor
Smart Protractor is made and published by Smart Tools co. AppBrain is an independent app data site and isn't affiliated with Smart Tools co. The app name, icon, screenshots and description belong to Smart Tools co. and are shown as published on Google Play.
AppBrain's verdict
EstablishedPopularWell rated- Rating on Google Play
- 4.08
- 17,199 ratings
- Installs
- 5.2 million
- Last updated
- October 1, 2026
- Ads
- Contains ads
- Size
- 4.05 MB
Smart Protractor is popular, with 5.2 million installs. Users rate it well: 4.1 stars from 17,199 ratings.
User feedback
Ratings and reviews on Google PlayComments on Smart Protractor for Android
Google Play Rating history and histogram
Store listing
By Smart Tools co., from Google Play“Measure the angle and slope of an object with your phone.”
Description by Smart Tools co. Written by the developer, not by AppBrain. Click to read.
This app measures the angle and the slope of an object. It has three protractor modes.
1. Touch mode : for angle. After putting an object on the screen, touch the screen.
2. Plumb mode : for slope. A weight shows the slope of your device.
3. Camera mode : goniometer, inclinometer. It uses camera view.
* Main features:
- Tilt units (degree, percent, radian)
- Zero calibration
- Orientation sensor on/off
- Material design
* Pro version added features:
- No ads
- Various Tilt units
- Screen capture
- Ruler, level, thread pitch
* Do you want more tools?
download [Smart Ruler Pro] and [Smart Tools] package.
For more information, watch YouTube and visit the blog. Thank you.
Recent changes:
- v1.6.5 : Support for Android 17
- v1.6.4 : More models have been calibrated
Safety and technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- 15
- App size
- 4.05 MB
- Content rating
- Everyone
Technologies used by Smart Protractor
Releases
Updates seen on Google Play- Version
- 1.6.5
- Launched
- September 2010
Alternatives
Similar apps and more from Smart Tools co.Alternatives to Smart Protractor
More from Smart Tools co.
Installs
Tracked by AppBrain- Last 30 days
- 8.4 thousand
- Per day
- 280
- 30-day average
- Play install range
- 5+ million
- Launched
- September 2010
Installs over time
Smart Protractor has been installed 5.2 million times. Over the past 30 days, it averaged 280 installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for Smart Protractor
About the app and developer
About Smart Protractor
Smart Protractor is a tools app developed by Smart Tools co.
Download Statistics
Smart Protractor has been downloaded 5.2 million times. In the last 30 days, the app was downloaded 8.4 thousand times.
User Ratings
Smart Protractor is rated 4.08 out of 5 stars. The rating is based on 17 thousand ratings.
App Information
Smart Protractor is freely available from Google Play. The APK size is 4.05 MB. The latest APK version available is 1.6.5. The last update was on October 1, 2026.
Technical Requirements
The app has a content rating of Everyone. The APK has been available on Google Play since September 2010.
App Performance Report
Get a detailed PDF report for Smart Protractor with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Smart Tools co.
Frequently asked questions about Smart Protractor
Is Smart Protractor free?
Yes. Smart Protractor is free on Google Play.
Is Smart Protractor still available?
Yes. Smart Protractor is on Google Play, and the last update we saw was on October 1, 2026.
Does Smart Protractor contain ads?
Yes. Google Play lists Smart Protractor as containing ads.
How large is Smart Protractor?
Smart Protractor is 4.05 MB.
Is Smart Protractor suitable for children?
Google Play rates the content of Smart Protractor as suitable for everyone.
How many times has Smart Protractor been installed?
Google Play lists 5,000,000+ installs for Smart Protractor.
How do people rate Smart Protractor?
Smart Protractor scores 4.08 out of 5 stars, from 17,199 ratings on Google Play.
Who made Smart Protractor?
Smart Protractor was developed by Smart Tools co. It is listed in the tools category on Google Play.
What are the best alternatives to Smart Protractor?
People looking at Smart Protractor also look at these tools apps: Protractor + Angle Finder - AR, Protractor, Max Protractor, Protractor: Angle Finder Level, Cool Bubble Level (Clinometer).