Only the current version so far — new entries appear as the app ships updates.
Sinhala Keyboard & Translator is a books & reference app by LANGUAGE WORLD with 10,000+ downloads (about 22K estimated). +17 installs in the last 7 days. Released Dec 27, 2019. Install growth, rank history, SDKs and ad networks.
From the store listing: “Best Sinhala Keyboard for 2020. Write Sinhala or English using Sinhala Keyboard”