Comparison

Strawberry Notes & Flashcards vs Kanji Lock

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

Head to head
About

Strawberry Notes & Flashcards

This app allows you to take handwritten notes, annotate PDFs, and convert them into flashcards. It uses spaced repetition for effective review and offers AI-powered study tools like quizzes and summaries. Present directly from your notes and organize your class materials seamlessly.

Highlights
  • Handwritten note-taking
  • PDF annotation
  • AI-generated flashcards
  • Spaced repetition review
  • AI study assistant
  • Note linking and graph view
  • Presentation mode
Features
Read full description

Take handwritten notes, annotate lecture PDFs, and circle what you wrote to turn it into a flashcard. Spaced repetition brings each card back when it's due, so you review what you need, not everything. Strawberry Notes is note taking that tastes sweet to your brain, built for college: lectures, problem sets, exam review and class presentations in one place. The AI assistant comes with free starter credits when you sign in. CONNECT YOUR IDEAS • Infinite canvas with infinite zoom. Write small in the margin, zoom out to see the whole derivation. • Link notes to each other like a wiki, and jump from an idea to the lecture it came from. • Graph view (Sky View): every note and every connection drawn as a live map of your brain's understanding. • Subnotes: any note can live inside another note. A subject holds its classes, a class holds its topics, a topic holds its subtopics — nested as deep as your learning actually goes. NOTES THAT FEEL BETTER THAN PAPER • Whiteboard or Notebook: an endless board or real pages. Switch between them anytime. • Ballpoint and ink pens, a broad-nib calligraphy pen, a chisel-tip marker, a tilt-sensitive graphite pencil, highlighter and laser pointer. • Snap to Shape for clean arrows and circles, plus layers. REMEMBER WHAT YOU WROTE • Write and draw every card by hand or ask AI to make them for you. Add images and PDF snippets. • FSRS spaced repetition, with retention and daily limits you set. • Tape: cover answers, tap to peek, peel it off once you know it. Taped cards become occlusion cards. • Stats, streaks and a daily reminder when cards are due. • Import Anki decks (.apkg) or CSV. AI STUDY TOOLS (sign in; uses AI credits) • Circle what you wrote and ask: it reads handwriting and diagrams and points back to the spot it used. • Practice quizzes: up to 40 questions in 7 formats, with hints and explanations. • Flashcard decks from your notes that join your reviews. • Interactive games and simulations that turn a concept into a hands-on model. • Summaries, outlines, study guides, step-by-step solutions and "check my work". PRESENT FROM YOUR NOTES • Your notes are the slides: bookmark views of a note, tap Present, and the canvas flies and zooms between them with the toolbars hidden. • Advance at your pace or auto-play on a loop. • Tap a link to continue into another note, or open a video or simulation mid-talk. BRING IN YOUR CLASS MATERIAL • Lay PDF pages on the canvas with room to write around them. • On iPad, write beside a lecture video, a web page, a PDF or a second note. • Scan handouts or share files into a note. • Color-coded subjects, tags and tasks with reminders. • Search your typed text and handwriting. PRIVATE AND BACKED UP • No ads. No tracking. Handwriting recognition runs on your device. • Notes and decks sync through your own iCloud, no account needed. • Back up your whole library to one file; restore it on any device. • Dark mode that keeps ink readable, and 16 languages. PREMIUM Premium includes everything: unlimited notes and decks, Calendar, presentations, Sky View, layers, the calligraphy pen and chisel-tip marker, web, video and PDF panes, and tables and drawings in text documents. Choose a monthly or yearly subscription (yearly includes a 7-day free trial for eligible new subscribers) or a one-time Lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage them in Settings > [your name] > Subscriptions. Lifetime doesn't cancel a subscription. If you already use the free version from an earlier release, you keep it. AI CREDITS Sign in with Apple or Google for free starter AI credits; more are sold in the app, or use your own OpenRouter key. Credits never expire. With your permission, your question and the notes it reads (by default, your selection or what's on screen) go to third-party AI providers. Terms of Use (EULA): https://www.strawberrynotes.com/terms Privacy Policy: https://www.strawberrynotes.com/privacy

About

Kanji Lock

Features
Read full description

Learn kanji every time you reach for a distracting app. Kanji Lock turns everyday screen time into Japanese study time. When you try to open an app you've chosen to limit, a kanji quiz appears first. Instead of opening social media on autopilot, take a few seconds to practice Japanese. FREE FOR 3 DAYS, THEN SUBSCRIBE Try every feature free for 3 days. No account or payment is needed to start. After the free period, a monthly subscription is required to keep using Kanji Lock. LEARN JLPT KANJI Practice kanji across all JLPT levels, from N5 to N1. Choose the level that matches your Japanese ability and learn at your own pace. You can also add your own kanji to practice. MULTIPLE TYPES OF QUESTIONS Practice kanji through different question formats, including: • Reading – choose the correct reading • Meaning – identify the English meaning • Kanji – choose the correct kanji • Context – understand kanji in sentences and context SMART REVIEW Kanji you tend to miss come back more often, and the ones you know well appear less. New kanji are introduced at a steady pace. LEARN BEFORE YOU SCROLL Select apps you want to limit. When you try to open one, Kanji Lock puts a short learning moment between you and the distraction. No separate study session required. Your existing phone habits become opportunities to practice kanji throughout the day. TRACK YOUR PROGRESS Keep track of your learning activity and see how you're progressing over time. BUILT WITH PRIVACY IN MIND Kanji Lock uses Apple's Screen Time technology to manage selected apps. Kanji Lock does not see the names of the apps you select. Your learning data is stored locally on your device and is not uploaded to our servers. Kanji Lock collects only anonymous usage statistics, which you can turn off in Settings. TURN DISTRACTION INTO PROGRESS Whether you're preparing for the JLPT or simply want to improve your Japanese, Kanji Lock helps you practice a little more every day — using time you were already spending on your phone. Open an app. Answer a kanji question. Keep learning. SUBSCRIPTION • Kanji Lock is free to download and free to use for 3 days. After that, a monthly auto-renewable subscription is required. The price is shown in the App Store and in the app before you subscribe. • Payment is charged to your Apple ID account at confirmation of purchase. • The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. • You can manage or cancel your subscription in Settings > Apple ID > Subscriptions. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emuemutaro.github.io/kanjilock-privacy/

Screenshots

Strawberry Notes & Flashcards4 screens
Kanji Lock4 screens

Verdict

The call

The clearest difference is iOS requirement: Strawberry Notes & Flashcards at 16.4 against Kanji Lock's 26.4. On price, update cadence, ads and in-app purchases 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. Strawberry Notes & Flashcards sells 10 in-app purchases, starting at $0.99 per month and Kanji Lock sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Strawberry Notes & Flashcards ships an update every 2 weeks, Kanji Lock weekly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Strawberry Notes & Flashcards versus Kanji Lock: the parameters behind the verdict, then further details
ParameterStrawberry Notes & FlashcardsKanji Lock
PriceFreeFree
Rating4.9 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better26.4
Further details — not scored
Size151 MB33 MB
Age rating17+4+
DeveloperStrawberry Notes LLCAYA FUNAKI

In-app purchases

10 purchases

Strawberry Notes & Flashcards

Subscriptions2
  • Premium Monthly$0.991 Month
  • Premium Yearly7 Days trial$4.991 Year
One-time8
  • Seasons of Japan$2.99
  • Holographic Dreams$2.99
  • Stained Glass Geometry$2.99
Show 5 more
  • Kaleidoscope Psychedelia$2.99
  • Snowglobe Winter$2.99
  • Paper Cut Worlds$2.99
  • Celestial Maps$2.99
  • Rainy Day Café$2.99
1 purchases

Kanji Lock

Subscriptions1
  • Premium$1.991 Month

Questions

Is Strawberry Notes & Flashcards free?
Strawberry Notes & Flashcards is free to download, with in-app purchases available.
Is Kanji Lock free?
Kanji Lock is free to download, with in-app purchases available.
Do Strawberry Notes & Flashcards or Kanji Lock have ads?
Neither Strawberry Notes & Flashcards nor Kanji Lock shows ads.
Which is updated more often, Strawberry Notes & Flashcards or Kanji Lock?
Strawberry Notes & Flashcards ships an update every 2 weeks, and Kanji Lock weekly. Most recently, Strawberry Notes & Flashcards was updated on November 10, 2026 and Kanji Lock on October 31, 2026.

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