AI Yomikata vs CastMind
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AI Yomikata
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AI Japanese Smart Learning: Making Japanese Learning Smarter and More Efficient! AI Japanese Smart Learning is an AI-powered tool designed to enhance your Japanese learning experience. By generating thematic flashcards, it helps users quickly master hiragana, katakana, and kanji, while utilizing intelligent memory algorithms to optimize the learning process, ensuring longer retention and greater accuracy.
CastMind
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Want to understand someone? CastMind gathers their interviews from wherever they are, so you can follow them and publish what you took away. To understand Karpathy today, you dig through Lex for one episode, Dwarkesh for another, and YouTube for his own long videos. Podcast apps can't help β they subscribe by show, so search gives you shows, not the episode he was on. CastMind works by person. β What it does for you β Β· Gather one person Tap + on Listen and search podcast episodes, Bilibili, and YouTube by name. Select a batch, keep them in one collection, and put them in your own order. The collection is pinned to Deep Dive on Home. Β· Tap a line to understand it When an English interview has a transcript, tap a line to understand it on the spot, or turn on bilingual view. If the show publishes its own transcript, it's fetched when you open the episode; YouTube and Bilibili can pull platform subtitles. Β· A transcript even when there isn't one Download a podcast episode and make a transcript on this iPhone. Audio never leaves the device. I ran a 3-hour-32-minute Chinese interview (210 MB) on iPhone 15 Pro Max β about 6 minutes to a full draft. It's machine dictation, so expect typos; the bar stays labeled unproofread. Β· Traces that leave themselves Mark a moment from the lock screen, Control Center, Siri, or your headphones without opening the app. Lines you tapped and moments you marked land in the same place. Β· Write a teardown you'll sign What you marked is laid out in the episode's teardown. You only write your own take. One Markdown file per episode, ready for X or your blog. Β· Pick up where you left off Open and continue from your last position. Each show remembers its speed; Smart Speed skips silences and Voice Boost lifts voices. Bind shows you follow to a smart collection and new episodes land there automatically. Β· On runs, commutes, and in the car Lock screen, Control Center, and headphone controls are ready. In the car, open CastMind on CarPlay to continue a podcast, open a show, or play a collection. Β· Offline first Original text, marks, and notes are readable and editable offline. No account. Nothing uploaded to the cloud. β What we deliberately don't do β No recommendation feed, charts, or people directory β you search for the person you already care about; we won't scroll content at you. No pronunciation scoring, no flashcards, and AI never writes your take for you. castmind.ai is CastMind's website.
Screenshots
Verdict
The clearest difference is price: AI Yomikata at Free against CastMind's $5.99. CastMind's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
AI Yomikata is free to download; CastMind costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AI Yomikata ships an update every 3 weeks, CastMind every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | AI Yomikata | CastMind |
|---|---|---|
| Price | Free β better | $5.99 |
| Update frequency | Every 3 weeks | Every 2 weeks β better |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.6 β better | 17.0 |
| Further details β not scored | ||
| Size | 129 MB | 15 MB |
| Age rating | 4+ | 17+ |
| Developer | Wing Tung Kwok | ζ ζ¨ |
In-app purchases
AI Yomikata
No in-app purchases
CastMind
No in-app purchases









