Gravity vs Mimi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gravity
Learn Japanese by capturing real-world text from your surroundings. This app creates personalized flashcards and study plans based on the vocabulary you encounter daily, making learning practical and context-driven.
- Personalized learning plans
- Instant vocabulary extraction from photos
- Smart review system
- Context-based flashcards
- Immersion-focused learning
- Daily learning sessions
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LEARN LANGUAGES THE FAST WAY - THROUGH VIDEOS! (Now with Mandarin Chinese support!) ◆ Learn Japanese and Mandarin Chinese through the content you already love. ◆ Gravity is an immersion-first language app that turns real videos and music into personalized learning. Doomscroll short native clips, sing along in Karaoke Mode, or pick something from a hand-curated library of native videos, each one transcribed word by word and levelled for learners. ◆ Whether you're into anime, J-pop, C-dramas, music, or YouTube creators, Gravity helps you build real language skills through context instead of generic textbook lessons. WHY CHOOSE GRAVITY? → Doomscroll to fluency: Moments turns scrolling into learning with a feed of short clips from native content. → Curated video library: native videos across anime, music, entertainment, creators, and more, levelled from complete beginner to advanced. → Word-synced transcripts: follow along word by word as the audio plays, with an English translation for every line that you can show or hide. → Karaoke Mode: follow the lyrics of songs you love, understand every line, and pick up vocabulary through music. → Tap to learn: tap any word for its reading, meaning, and an AI explanation, then save it in one tap. → Context-based flashcards: every saved word keeps the moment it came from, so you can replay the original clip while you review. → Smart spaced repetition: reviews are scheduled so each word comes back right before you'd forget it. → Practice right after watching: review the words you just saved as soon as you finish a video. → Daily word goals and reminders: stay consistent without overwhelming study sessions. BUILT FOR EACH LANGUAGE Japanese → Furigana, romaji, or no reading aids. Your choice. → Pitch accent graphs and dictionary meanings on every card. → Anime, J-pop, podcasts, streams, and more, levelled from Pre-JLPT to N1. Mandarin Chinese → Pinyin with tone marks, or turn it off. → Simplified characters, with traditional forms shown alongside. → C-dramas, music, and more, levelled from Pre-HSK to HSK 6. WHAT YOU'LL LEARN ◆ Real vocabulary and phrases, the way native speakers actually use them. ◆ Listening and reading skills through authentic videos, songs, and clips. ◆ Words from the shows, music, and creators you already watch. ◆ Language you'll actually hear, not just textbook examples. WHO IT'S FOR → Anime, J-pop, C-drama, and music fans who want to learn from what they already love. → Learners who already spend hours watching videos and scrolling online. → Travelers, international students, and people living or working abroad. → Busy learners who want immersion to fit naturally into their day. → Anyone tired of repetitive textbook lessons and overwhelming flashcard decks. HOW IT WORKS 1. Choose Japanese or Mandarin Chinese and your level. 2. Watch a video, scroll Moments, or sing along with a song. 3. Tap unfamiliar words to see what they mean and save them. 4. Gravity turns your saved words into flashcards, each linked to its original moment. 5. Review a few minutes a day and watch your known words grow. LEARN THROUGH WHAT YOU LOVE Doomscroll in the language you're learning. Watch videos. Sing your favorite songs. Gravity turns the content you already want to watch into something you can actually learn from. GRAVITY IS IN EARLY ACCESS. Any bugs, issues, or feedback can be directed to support@learngravity.com. Privacy: https://learngravity.com/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Mimi
Learn Japanese through real-world video clips, from anime to news. This app matches content to your JLPT level, offering natural listening practice. Unlock advanced features like live transcripts and tap-to-translate with a Pro subscription.
- Learn with real video clips
- Content matched to JLPT levels
- Live transcript and translation (Pro)
- Tap-to-translate word meanings (Pro)
- Save words for flashcard practice (Pro)
- Bite-sized learning sessions
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LEARN JAPANESE THE WAY YOU ALREADY WATCH VIDEOS: BY SCROLLING REAL CLIPS Flashcard decks and grammar drills teach you rules about Japanese. Mimi teaches you Japanese itself. Real anime, vlogs, cooking, news, travel, kids' shows, gaming and business, cut into short clips. Watching every clip is free. MIMI PRO (SUBSCRIPTION REQUIRED): the live transcript that follows every word as it is spoken, the English translation, tap-a-word meanings, saved words and flashcard practice need Mimi Pro, an auto-renewing subscription, yearly or monthly. Features marked (Mimi Pro) below are part of it. A student working toward the JLPT, a traveller getting ready for Japan, an anime fan tired of reading subtitles, a busy professional with ten minutes on a train: Mimi fits into the scrolling you already do. WHY MIMI? ► Learn naturally. Every clip is a real video, not a lesson script. You hear Japanese the way people speak it, not the way a textbook writes it. ► Always at your level. Clips are matched to what you already understand, about 85 to 90 percent, by JLPT level from N5 to N1. Hard enough to stretch you, never so hard that you give up. ► Tap to translate (Mimi Pro). Tap any word for its reading and meaning without leaving the clip. ► Grow your vocabulary (Mimi Pro). Save the words and phrases you actually heard and review them as flashcards made from the clips themselves. ► Bite sized. Short clips, a daily streak, nothing to schedule. WHO IS MIMI FOR? Students build listening comprehension alongside classroom Japanese, at their own JLPT level. Travellers get their ear ready for how Japanese actually sounds before they land. Anime and manga fans understand more of what they already watch, without waiting for subtitles. Busy adults get a full session out of ten minutes on a commute. There is no lesson to finish. FEATURES THAT MAKE MIMI UNIQUE ► Word by word highlight in Japanese and English (Mimi Pro). A green box follows the speech through the Japanese line and lights the matching English word at the same moment. ► Furigana, romaji and English under every word (Mimi Pro), so you are never stuck guessing a reading. ► Explore by world, show and level. Search anime, vlogs, cooking, news, travel, kids' shows, gaming and business by name, or browse everything at your own JLPT level. ► Real anime from official channels. Every clip streams from the rights holder's own channel, never a re-upload. No ads. No accounts. Your saved words, streak and progress stay on your device. *SUBSCRIPTION INFORMATION* Watching clips is free. The transcript, translation, word cards and practice require a Mimi Pro subscription: yearly ($49.99 a year) or monthly ($9.99 a month), prices in US dollars and may vary by country. The yearly plan starts with a 7-day free trial for new subscribers, then renews at $49.99 a year unless cancelled. The monthly plan has no trial. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period, at the price of the plan you selected. Manage or cancel any time in Account Settings. Any unused portion of a free trial is forfeited when a subscription is purchased. *TERMS OF SERVICE* Terms of Use: https://mimifeed.com/terms Privacy Policy: https://mimifeed.com/privacy By downloading, you also agree to Apple's Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Mimi at 5.0 against Gravity's 4.1. Mimi also leads on update cadence (every 2 days vs every 9 days). Gravity's advantage is ads (none vs shown) and ratings volume (39 vs 1). On price, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Gravity sells 6 in-app purchases, starting at $4.99 per month and Mimi sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Mimi holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Gravity has 39 ratings behind it against 1, so its average is the more settled of the two.
Gravity ships an update every 9 days, Mimi every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Gravity | Mimi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (39 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 69.0% of reviews | — |
| Number of ratings | 39 — better | 1 |
| Update frequency | Every 9 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 109 MB | 97 MB |
| Age rating | 4+ | 12+ |
| Developer | Heimdall Space Inc. | Loch Partners LLC |
Customer experience
Gravity
Mimi
In-app purchases
Gravity
- special offer$4.991 Month
- Fluency$6.997 Days
- Immersive Monthly7 Days trial$8.991 Month
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- Immersive Monthly7 Days trial$11.991 Month
- Immersion7 Days trial$14.991 Month
- Polyglot7 Days trial$69.991 Year
Mimi
- Mimi Pro Monthly$9.991 Month
- Mimi Pro Annual7 Days trial$49.991 Year









