Is not working / having issues for you?


Recently reported problems with within the last 24 hours

Not Working51%
Login Issue34%
Loading Problem43%
Installation Issue56% App Status (June 2024)

If you're experiencing difficulties with the app, the issue might be related to your device or internet connectivity. Should you believe the app is the culprit, kindly provide a detailed description of the problem, and a community member might offer guidance. While you await feedback, consider attempting these troubleshooting measures.

App Name
App Category Education
Developer Signal Stuff
Relase Date 10 May 2018, Thursday
Last Update 22 December 2023, Friday
Compatibility IOS 13.0 or later

Common App Problems and Troubleshooting Steps

Android, iOS, or macOS operating system users may encounter a problem where an app will display a black screen for a few seconds before crashing, with or without an error message. However, there are a few methods you can try to fix this issue:

  1. Sometimes, this problem may be caused by a temporary loading issue. To fix this, go to the recent applications menu on your phone, usually accessed by the first left button, and close the app that is experiencing the issue. Then, re-open the app.
  2. If that doesn't work, try doing a hard reboot of your iPhone, iPad, Mac or Android device by simultaneously pressing and holding the "Home" and "Power" buttons for up to 10 seconds, then release them and hold the "Power" button until the screen turns on. After that, try opening the app again.
  3. If none of the above solutions work, another option is to wait for the phone battery to drain and turn off automatically. After that, charge the phone and turn it on and try opening the app again.
  4. If the problem persists, you may need to uninstall and re-install the app. Re-installing the app will restore all settings.
  5. If the app still does not work, you can try installing older versions of the app.

My app wont load or not working properly (loading error / server error / connection error / screen freeze / ping problem)

There are a number of reasons why a mobile app may experience loading issues. Some common causes include:

  1. The app server may be experiencing downtime, which can cause loading issues. Try accessing the app again after a few minutes.
  2. Your wifi or mobile data connection may not be working properly, which can affect the app's ability to load. Make sure your connection is stable.
  3. There may be too many users accessing the app at the same time, causing a slowdown. In this case, try accessing the app again after a few minutes when usage may be lower.

I'm having login issue or account related issues

If you are experiencing issues with logging in or with your account, please take the following steps to troubleshoot the problem:

  1. Check if the server is down, as this can cause login and account issues. If so, try logging in again after a few minutes.
  2. Verify that your wifi or mobile data connection is working properly.
  3. Ensure that you are using the correct login credentials. Double check the details you are entering.
  4. If you're logging in using a third-party service like Facebook, Twitter, or Google, check to make sure that the service is functioning properly by visiting its official website.
  5. If you see error message, check if your account has been banned or deactivated.

I have app installation issues

There seems to be some issues with the installation of the app. To resolve this, please follow these steps:

  1. Ensure that your wifi or internet connection is stable.
  2. Verify that you have enough storage space on your mobile device. A lack of sufficient space may prevent the app from being installed.
  3. Check that the version of the MacOS, IOS or Android operating system on your device is compatible with the version of the app you are trying to install. not working image-1 not working image-2 not working image-3 not working image-4

My app is not updating properly in my phone

In order to ensure that you are able to update the app, please take the following steps:

  1. Verify that your wifi or mobile data connection is functioning properly. If the connection is down, it may prevent the app from updating.
  2. Make sure that your phone has enough storage space to download the updates. If there is not enough space, it may prevent the app from updating.

Audio/video loading problem with

If you are experiencing audio problems while using a phone, there are a few steps you can take to troubleshoot the issue:

  1. Verify that the volume on your phone is not turned down or muted.
  2. Try using headphones to determine if the problem is with the phone's speakers or with the app itself.

If you are having trouble with videos loading, some potential solutions include:

  1. Checking your internet speed and wifi connectivity to ensure that you have a stable connection.
  2. Make sure that your phone has enough storage space to download the videos.
  3. Check if the app is compatible with your operating system version.
  4. Check that your phone is not running on low-power mode. app notifications are not working properly

If you are not receiving notifications for the app, you can check the app's notification settings by following these steps:

  1. Go to the "Apps" section on your device. Locate the "" app.
  2. Check the notification settings to see if they are enabled. If they are not, please enable them.
  3. If you are not getting notification sounds, make sure that the app's notification sound is not accidentally muted.

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I have a problem with!

Are you experiencing issues with the app or would you like to share some feedback? Please write your problem above and someone from our community may help you. Developer Updates

Version 1.8.0 22 December 2023
* Bugfix: Some users can't view practice test history after a question pool update
* Bugfix: Retaking a practice test from the website is graded incorrectly.
* Bundled question pools have been updated to the latest (online updates are always available and don't require an app update).
Version 1.7.2 09 October 2023
* Updated the bundled question pools for first-time users (existing users can download updates from in the app anyway)
* Updated to the latest iOS SDKs to ensure compatibility with current devices
* Fixed a bug which could cause users to be stuck on a blank white screen.
Version 1.7.1 12 April 2023
* General 2023 question pool pre-loaded
* New installs will use a faster, more performant database
* Many back-end improvements to improve reliability
* Added analytics to help with troubleshooting bugs.
Version 1.6.1 06 July 2022
- Updated to have the new 2022 tech question pool on install, instead of needing to download it after installing.
- Unfortunately you may lose your data when upgrading to this version -- make sure you've synced to a account before installing! We apologize but were unable to fix the problem in a better way.
- Data access and storage is faster, which should result in a faster app
- Facebook login support has been removed due to changes to their ToS which required us every two months to prove once again through a tedious process that we weren't selling anyone's data. We're not, and we hadn't changed anything, but it just got to be more than we had time to deal with, so we've removed it.
- Added a much-requested feature, the ability to show only the questions you missed when reviewing practice exam results..
Version 1.6.0 21 September 2021
- Fixed a bug affecting some users where buttons didn't work after taking a practice exam
- Updated the prepackaged question pools
- Added better error reporting tools -- these will help us see what issues our users experience (no personal information collected, only error reports!) so we can fix them..
Version 1.5.0 25 April 2021
- Updated the FaceBook APIs to prevent deprecation
- Improved study mode question selection algorithms
- Misc performance improvements and minor bug fixes.
Version 1.4.1 03 July 2020
- Fixed social login button styles
- Fixed social login behaviors
- Updated the pool.
Similar app Problems
✓ Help Center Note

Update your device software to the latest version, delete the app and redownload it from the app store. Your app progress will be retained as long as the device is connected to the internet. Also, ensure that your device meets the minimum system requirements.