Biblingo offers the opportunity to practice actively producing Greek and Hebrew through typing, which will improve you're ability to read with fluency and comprehension. In order to type in Biblingo, you'll need to install a Greek/Hebrew keyboard on your device. Any Greek/Hebrew keyboard should be compatible with Biblingo. Some devices will have native Greek/Hebrew keyboards available, but these are generally for modern Greek and Hebrew, so they sometimes don't include all the characters you need.
For web:
There are several free keyboards available that are designed for ancient Greek and Hebrew. One we recommend is produced by Tyndale House and is available to download here: https://us.stepbible.org/downloads.jsp (scroll down to Tyndale Keyboard and Unicode Font Kits).
There are installation instructions and a usage guide available there as well. Some people have trouble with installation even with these instructions. We found this video (we did not produce it) that has been helpful to some users: https://youtu.be/ts8tu9e1Kao
For mobile:
There are several free keyboards available that are designed for ancient Greek and Hebrew. One we recommend is produced by SIL and is available in the Keyman app:
Additionally, here are installation instructions for the Keyman app:
Install the Keyman app via the App Store or Google Play Store (links above)
Open the app
Tap the three horizontal dots menu in the top-right corner
Select "Settings"
Select "Installed Languages"
Tap the "+" (plus symbol) in the top-right corner
Select "Add New Keyboard..."
Search for Hebrew and/or Greek
Select “Hebrew (SIL)” and/or “Polytonic Greek (SIL)”
Tap the "Install keyboard" button
Tap "Install" in the top-right corner
Follow the prompts to install the keyboard
Next, you have to enable Keyman in your phone settings. Here's how:
Open your settings
Choose General
Choose Keyboard
Select Keyboards
Select "Add New Keyboard..."
Choose Keyman
Enable "Allow Full Access"