Comparison

Satori Reader vs Rakulingo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Satori Reader

Enhance your Japanese reading and listening skills with engaging stories written by native speakers. Features adaptive kanji, smart definitions, and spaced repetition to build vocabulary. Get clarity with friendly annotations and human feedback.

Highlights
  • Compelling stories by native speakers
  • Audio narration by voice actors
  • Adaptive kanji presentation
  • Smart word definitions
  • Friendly annotations
  • Spaced repetition vocabulary review
  • Human feedback and support
Features
Read full description

Ready to take your Japanese reading and listening comprehension to the next level? Welcome to Satori Reader. COMPELLING STORIES Read from a growing library of engrossing stories written by native speakers for intermediate students, across genres such as fantasy, slice-of-life, thrillers, documentaries, news, and more. AUDIO Tap any sentence to hear it read aloud by native voice actors (no robots!). ADAPTIVE KANJI USAGE Crack the chicken-and-egg problem of reading kanji with our unique presentation engine, which adjusts the Japanese text to accommodate your actual knowledge. This allows you to challenge yourself for the kanji you should know without being overwhelmed by what you don't. SMART DEFINITIONS Tap any word for a definition. This is more than just an automated lookup. Satori Reader shows the actual sense of each word as it's being used in the sentence. For example, the particle の has many uses: it can indicate possession; it can turn the preceding verb or phrase into a noun; it can stand in for another word; and more. We show you exactly what is happening in every instance of every word. FRIENDLY ANNOTATIONS Gray underlines indicate longer annotations that break down tricky expressions, provide cultural background, or help you to read between the lines. Our editors work hard to anticipate what might be confusing and proactively help you to make sense of things. Good-bye, confusion. Hello, clarity! SPACED REPETITION SYSTEM (SRS) The built-in spaced repetition review system helps you to build your vocabulary. Create review cards instantly as you read. Each card you create takes along a snapshot of the sentence in which you encountered the word, further helping to cement it in your memory. You can even play back the audio of that sentence while reviewing the word! HUMAN FEEDBACK Still confused about something? Just ask in the discussion section below each episode. Our team of friendly human beings is ready to help. Satori Reader is built by a team that cares. Our goal is to bring satori (enlightenment) into your Japanese reading life. Set up a free account today, and let's get started. SUBSCRIPTION DETAILS ▪ OPTIONS: Download the app for free and enjoy unlimited access to the first two episodes of each series (new series released regularly), plus complete access to special series such as Closeup: Obon Society. Subscribed for unlimited access to the entire Satori Reader library of more than 1200 episodes (new episodes released each week), including crystal-clear audio, helpful annotations, and real human feedback. Try your first month FREE (limit one per customer; cannot be used in combination with other introductory offers; offers subject to change). ▪ EXTRAS: Your subscription to Satori Reader comes with complimentary web access, as well as access to Satori Reader on all your smartphones and tablets. ▪ PRIVACY POLICY: https://www.satorireader.com/privacy ▪ TERMS OF SERVICE: https://www.satorireader.com/terms ADDITIONAL SUBSCRIPTION DETAILS ▪ Payment will be charged to your iTunes Account at confirmation of purchase (following any trial period). ▪ Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. ▪ Account will be charged for renewal within 24 hours prior to the end of the current period, and identify the cost of the renewal. ▪ Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. ▪ Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. ▪ Cancel your subscription at any time. If you cancel, you will retain full access to Satori Reader for the period you paid for and you will not be billed again. If you have any questions, write to support@satorireader.com for speedy assistance. Thank you for your business!

About

Rakulingo

Read full description

Your AI companion for understanding Japanese. Instantly understand any Japanese you meet. Watching anime, reading manga, playing a game, studying a textbook, or walking through Tokyo - Rakulingo explains it on the spot, in your language. STORIES Read short stories that begin in English and slowly turn Japanese. Every sentence is narrated, every word can be tapped, and each chapter teaches a few words you will meet again in the next one. A gentle way into real Japanese - no flashcards, just a story you want to finish. YOUR JAPANESE COMPANION, EVERYWHERE Rakulingo works with whatever you are doing. Studying a textbook? Get a deeper explanation. Watching Netflix? Understand every line. Reading manga? Decode every panel. Gaming on the couch? Snap a photo of the TV and understand the dialogue. Walking in Tokyo? Read every sign. One app, endless possibilities. CAPTURE JAPANESE FROM ANYWHERE • Screenshot subtitles, text, or anything on screen • Record audio from videos, podcasts, or conversations • Photograph books, signs, menus, or handwriting • Point your camera at a TV or console screen while you play • Browse Japanese websites with instant help • Open your own PDFs, ebooks, and videos JLPT N5 PRACTICE Practice every N5 question type, one question at a time — kanji readings, vocabulary, grammar, reading passages, and the full listening section. Listening questions come with real recorded audio and scene pictures: the practice material that is hardest to find on your own. Every answer gets a plain explanation of why it is right and why the others are not. Unofficial material written with AI assistance and reviewed; not affiliated with the JLPT organizers. SPECIALIZED AI ASSISTANTS • Sentence Explainer - a complete breakdown of grammar, particles, and vocabulary • Translator - instant translation in both directions • Furigana - reading guides for any kanji • Japanese Teacher - ask anything, anytime • Speaking Buddy - practice conversations with an AI that answers naturally and suggests how to keep the conversation going • Web Browser - read Japanese sites with live help, screenshots, audio capture, and copy-paste • Reader - understand your own PDFs, ebooks, images, videos, and audio OFFLINE DICTIONARY Tap any word in a reply or a story to look it up. Once downloaded, it works without internet. PERFECT FOR EVERY LEARNER • Beginners - understand from day one, with explanations in your language • Students - add instant, detailed explanations to your studies • Immersion learners - turn entertainment into practice • Advanced learners - tackle native content with nuanced support • Travelers - get around Japan with confidence • Casual users - quick translations whenever you need them WORKS IN YOUR LANGUAGE Explanations in 15 languages: English, Portuguese, Spanish, French, German, Italian, Korean, Chinese, Hindi, Polish, Dutch, Indonesian, Vietnamese, Turkish, and Thai. WHY RAKULINGO? Dictionaries translate; Rakulingo explains. Textbooks teach in isolation; Rakulingo works with real content. Classes end; Rakulingo is always with you. It is your personal Japanese expert in your pocket, ready for whatever Japanese you run into. THE SMART AND FUN WAY TO LEARN • Works alongside any study method or textbook • Adds context and cultural notes, not just translations • Remembers your conversation for better explanations • Adapts to what you need - a quick translation or a deep dive • Lets you learn from the content you choose, at your own pace FREE TO START Try every assistant with free credits and read the first story chapters for free. Subscribe when you want unlimited use. Understanding Japanese does not have to be hard. With Rakulingo, you are never alone on your Japanese journey. Download now and turn every encounter with Japanese into a chance to learn. By using Rakulingo, you agree to the Apple Standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Satori Reader4 screens
Rakulingo4 screens

Verdict

The call

The clearest difference is update cadence: Rakulingo at fortnightly against Satori Reader's every 3 months. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Satori Reader sells 3 in-app purchases, starting at $8.99 per month and Rakulingo sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Satori Reader ships an update every 3 months, Rakulingo fortnightly. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

Scorecard1 real difference · 9 level
Satori Reader versus Rakulingo: the parameters behind the verdict, then further details
ParameterSatori ReaderRakulingo
PriceFreeFree
Rating4.8 (215 ratings) — better—
Positive reviews90.2% of reviews—
Number of ratings215 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size79 MB159 MB
Age rating12+17+
DeveloperBrak Software, Inc.Antonio Scandaroli

Bugs and requests

Satori Reader

Reported bugs

2 issues
  • Login issues and account creation problems
  • Syncing and loading delays on some devices

Requested features

4 requests
  • Dark mode option
  • Ability to loop audio playback
  • Kanji lookup/learning tools integration
  • More advanced/diverse content selection

Rakulingo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Satori Reader

Subscriptions3
  • Satori Reader Monthly1 Month trial4 variants$8.991 Month
  • Satori Reader Annual1 Month trial$89.991 Year
  • Satori Reader Annual1 Year trial3 variants$89.991 Year
3 purchases

Rakulingo

Subscriptions3
  • Access to premium AI$3.997 Days
  • Access to premium AI$9.991 Month
  • Access to premium AI3 Days trial$95.991 Year

Questions

Is Satori Reader free?
Satori Reader is free to download, with in-app purchases available.
Is Rakulingo free?
Rakulingo is free to download, with in-app purchases available.
Do Satori Reader or Rakulingo have ads?
Neither Satori Reader nor Rakulingo shows ads.
Which is updated more often, Satori Reader or Rakulingo?
Satori Reader ships an update every 3 months, and Rakulingo fortnightly. Most recently, Satori Reader was updated on September 20, 2026 and Rakulingo on September 17, 2026.

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