ankidroid/anki-android released v2.25.3. AnkiDroid is the official Android port of Anki, the open-source spaced repetition (interval repetition) flashcard system. Spaced repetition is a method that brings learned material back at regular intervals for review so that memory lasts longer. The given material contains no changelog describing what changed in this release.
It is an Android app written in Kotlin and distributed under the GPL-3.0 license. It supports language learning through word, sentence and pronunciation card review and dictionary integration. The README describes it as an app for using Anki flashcards on Android. It supports night mode, whiteboard, progress widgets, detailed statistics, AnkiWeb sync, text-to-speech and the FSRS algorithm.
Its content covers text, images, audio and MathJax. Pre-made decks number more than 10,000, and there is also a feature for adding cards from other apps. The repository was created on January 20, 2013 and has 12,062 stars.
Still, there is not much material to judge by. The research record's score is 4.1 out of 10 on the momentum item, and no freshness, technology or quality scores were given. Judging by 4.1 alone, the signal about recent momentum is not strong. The license and feature list are clear, but beyond that no evaluation material remains at the moment.