You can use this smartphone app while on the go to review flashcards created on Google Drive using your home PC.
[Main Features]
Directly import flashcards created in Google Sheets on Google Drive.
There are two import methods available: "Replace All" and "Update with Differences."
You can import and manage flashcards created in multiple Google Sheets within a single app.
Register/change/delete flashcards on your smartphone.
Mark checked words and extract and display only unchecked words.
View and search the entire list of flashcards.
Update flashcards on Google Drive directly with the words added/modified on your smartphone.
Swipe to transition to the next word.
[Notes]
1. Flashcard format:
Please specify the following column names for the flashcards created in Google Sheets: "Word," "Translated," "Checked."
2. The Google Sheets integration screen requires an internet connection to be available.
There is also a free version available (with ads).
Flashcard CLOUD Simple Version: https://play.google.com/store/apps/details?id=knse.tangochocloud_free