Go to the home screen of your Firestick device.
Select the "Settings" option.
Select "My Fire TV."
Select "Developer Options."
Turn ON "Apps from Unknown Sources."
Return to the home screen and select "Search."
Search for "Downloader" and install it.
Open the Downloader app.
Enter the URL "https://tivimate.com/download" into the Downloader app and download the Tivimate APK file.
Once the APK file is downloaded, click on "Install."
Wait for the installation to complete and then click "Open."
Enjoy Tivimate on your Firestick!