Castro
castro.fmAn episode inbox feeding a single listening queue
An episode inbox feeding a single listening queue
Conjugation, listening and vocabulary tools in one study space.
Music streaming in selected Asian markets
Learn useful phrases by listening to real speakers.
Podcast listening with offline playback and cloud sync
Listening lessons with transcripts, vocabulary and quizzes.
Fill gaps in song lyrics while listening.
Children's games, jokes, activities, listening and exploration features from Highlights.
Speaking and listening practice through everyday dialogues.
Audience intelligence that segments social conversations and supports selective video transcription
Social listening that links themes to communities and original posts
Employee engagement and performance tools with review calibration
Social scheduling, approval workflows and a centralized inbox
Owned communities and coordinated social publishing, listening and care
AI social intelligence that tags posts and answers questions with cited mentions
Conversational surveys with AI analysis for qualitative research
A Polish reading and listening subscription with device-specific rules
Connect social conversations with earned-media monitoring and PR reporting
Ebooks and audiobooks inside Apple’s reading app
An Android audiobook player for your own files
An audiobook service with membership and individual titles
Episode search with portable listening playlists
Growth automation software for inbound and outbound marketing and sales teams.