Published by Smart Tools co. on Jun 30, 2024

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Why should I report an Issue with Smart Protractor?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Smart Tools co. to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Smart Protractor

1. Camera mode : goniometer, inclinometer. It uses camera view. download [Smart Ruler Pro] and [Smart Tools] package.

2. After putting an object on the screen, touch the screen. 2. Plumb mode : for slope.

3. It has three protractor modes. 1. Touch mode : for angle.

4. This app measures the angle and the slope of an object.

5. Smart Protractor is in the 1st set of the Smart Tools collection.

6. A weight shows the slope of your device. 3.

7. For more information, watch YouTube and visit the blog. Thank you.

Smart Protractor Customer Insights

1. Thereafter, excellent though a bit fiddly to avoid touching screen with bevel edged phone.I found out early on that the actual protractor part that's supposed to line up is a level that I tried to calibrate but I couldn't even manage to do, just get a real protractor.Works great.. And very accurate .

2. Thanks for the great app 👍So much more direct and easier to use than other protractor apps.Important to have a decent spirit level to calibrate.

3. Haven't really tested this mode much, but was pleased to discover this ability and can see numerous situations where this could be useful practically.As a woodworker, I might use this and it seems OK, but could do with markings for commonly used angles like 45, 15, 30, 60 or these numbers highlighted.

4. Also when using the touch setting there should be an option that will snap it to those angles because it's just too fiddly to hone in to the exact angle.

5. If it had those features then it could be genuinely useful, otherwise it's just a novelty.Awesome app! I just wish you could tap on the angle and manually put in the degree and then match the desired angle to that number.

6. I 100% recommend this app for measuring angles, it's perfect.Great App, does exactly what it says without clutter.

7. I quickly needed a protractor to determine the tilt of a small platform I'm designing.

8. Interesting use of your phones camera to impose protractor image over.

9. 3 modes each useful for variety of tasks, drawing and measurement based.

10. Unless I'm missing it and it has that option (which is entirely possible) other than that it's exactly what i need.

11. The app was exactly what I needed and it worked perfectly!Been using this for years now.

Steps to Troubleshoot & Fix Smart Protractor Issues

1. Fix Smart Protractor Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Smart Protractor: Restarting the app will resolve most errors.
  2. Update the Smart Protractor App. Here is how:
    1. On Android goto PlayStore » Search for "Smart Protractor" » Open Smart Protractor » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Smart Protractor » click "UPDATE".
  3. Clear Smart Protractor app cache: Clearing cached data will force your app to retrieve the latest data directly from Smart Protractor servers.
    1. On Android, goto Settings » Apps » Select "Smart Protractor" » click Storage » click "Clear Cache".
  4. Check Smart Protractor app permissions. If any of these permissions required to use your device's features are disenabled, Smart Protractor might not work.
  5. Uninstall and reinstall Smart Protractor. If nothing else has worked, completely uninstall Smart Protractor then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Smart Protractor not working


2. Fix Smart Protractor Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Smart Protractor be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Smart Protractor not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Smart Protractor may not be able to connect to the Internet when running in the background.

Reported Issues