Contact DOF Calculator Customer Service

Why should I report an Issue with DOF Calculator?

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 Ioannis Ioannou 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.

1. Good enough for my needs.I don't see canon R series?Fantastic!Not up to datejjNice app man.User interface is pretty bad, sorry.

2. Inconvenient UI, you have to type numbers, the results are not easy readable.Easy to use.

3. Works well.

1. Fix DOF Calculator Not Working/Crashes/Errors/Unresponsive & Black/White screen:

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

2. Fix DOF Calculator Server issues & Internet Connection

1. Check network connection: An unstable Internet will make DOF Calculator 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 DOF Calculator not working. Make sure all VPNs are off
3. Enable background data: When Background data is turned off, DOF Calculator may not be able to connect to the Internet when running in the background.