Volpi Tales vs Lumen

Volpi is the audio-story app for families who want more than a play button. Remember when someone told you a bedtime story in THEIR voice? Volpi lets you create a personalized narrator voice — yours, Dad's, Mom's or Grandma's — from a short recording, and turn the stories your child loves into stories told in that voice. What you can do with Volpi: • Listen to a curated library of children's classics (Little Red Riding Hood, The Three Little Pigs, Snow White, fables and more) adapted for ages 2 to 8. • Create a personalized voice from about 30 seconds of recording, always with the explicit consent of the family member who lends their voice. • Have your favorite stories narrated with your custom voice, or enjoy the whole catalog with Volpi's default narrators. • Stories available in Spanish and English. • Bedtime: dedicated playlists that ease children into sleep without jarring sound cues. • At home or in the car: Bluetooth speakers, AirPlay and Chromecast supported. Built for families: • No in-app purchases and no surprise charges — nothing is ever billed through your App Store account. Volpi requires a subscription, which cannot be purchased in the app. • No third-party advertising and no recommendation engine outside the curated catalog. • No commercial profiling of your children and no targeted advertising: just stories. • Clear privacy policy, built to comply with European (GDPR-K) and US (COPPA) regulations. Volpi is made in Spain by a small team that believes stories are shared time. If you have questions, feedback, or simply want to tell us that grandma has been rehearsing her voice recordings for two weeks, reach out at contact@volpistudios.com.

Lumen is a flashcard app for people who want spaced repetition to work properly and want their data to stay on their phone. Cards are scheduled with FSRS-6, the algorithm that models memory as difficulty, stability, and retrievability rather than a fixed ladder of intervals. Every rating button shows the interval it would give you before you tap it, so you can see what Again, Hard, Good, and Easy actually cost. If you want to tune the scheduler, all 21 FSRS weights and your desired retention are editable, with bounds checking so you cannot save a set that breaks scheduling. BRING THE DECKS YOU ALREADY HAVE Import from Anki .apkg files, Anki JSON, CSV and TSV, Markdown, and Lumen's own ZIP backups. Anki's rendered HTML is stripped on the way in, so you get clean card faces instead of stray markup. Imports are idempotent: re-importing a deck or overlapping HSK levels will not duplicate anything. You can export your decks at any time. BUILT FOR CHINESE, USEFUL FOR EVERYTHING The HSK importer reads the complete-hsk-vocabulary dataset and keeps every written form, numeric pinyin, radical, and frequency rank. Chinese notes render tone-colored pinyin alongside simplified and traditional forms, meanings, part of speech, HSK level, and classifiers. Each word can generate both recognition and production cards. Text-to-speech reads cards aloud, and the spoken language is set per deck. For everything else there are Basic, Basic and Reversed, and Cloze note types, Markdown formatting on card faces, nested decks at any depth, image and audio attachments, and full-text search across your collection. YOUR CARDS STAY ON YOUR DEVICE Lumen works offline and has no accounts. Your decks, notes, review history, and media live in a database on your phone, and nothing syncs to a server. Lumen reports anonymous usage and crash data so bugs get fixed, and that reporting excludes deck names, tag names, note contents, search queries, and file paths. Settings has a reset that erases everything locally. KEEPING THE HABIT A daily goal, streaks, XP, and achievements track consistency. The stats screen shows review counts, retention, daily accuracy, rating distribution, how card difficulty is trending, and a heatmap of your study activity. You can share a streak or heatmap card as an image without sharing the cards themselves. Lumen has no ads and nothing to unlock by paying.