Comparison

Yomu Mentor vs Inkday

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

Head to head
About

Yomu Mentor

Features
Read full description

Read short Japanese passages at your level, from N5 to N1. Each passage uses words and grammar you mostly know, with a few new ones. Tap any word to see its reading, meaning and an example sentence. Save the words you want to keep, and the app brings them back for review. WHAT YOU GET - 133 graded passages across N5, N4, N3, N2 and N1 - Tap a word for its reading, meaning and an example sentence - Furigana when you tap a kanji - Comprehension questions after every passage - Spaced repetition review of the words you saved, shown in the sentence where you found them - Notes on the grammar patterns in each passage - Your reading speed and comprehension over time Passages are written with AI and graded to each JLPT level. FREE N5 passages, 3 a day. YOMU MENTOR PRO Unlimited passages at every level from N5 to N1. - Annual: $39.99 a year, with a 7-day free trial - Monthly: $5.99 a month Payment is charged to your Apple ID when you confirm the purchase. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://archmob.com/privacy

About

Inkday

This app helps you learn and remember Chinese characters through spaced repetition flashcards. It allows you to import words from other apps and practice writing them on an iPad. Learn radicals and build custom copybooks for effective study.

Highlights
  • Spaced repetition flashcards
  • Import words via share sheet
  • Character writing practice on iPad
  • Learn Kangxi radicals
  • Integrated dictionary
  • Customizable copybooks
Features
Read full description

Inkday helps you remember Chinese characters: you review cards a little every day until each word sticks. Your words come from what you read. Select a word in Safari or a book and tap Share. Inkday fills in the pinyin and keeps the sentence as a note on the card, so you remember where you met the word. FLASHCARDS The character is on the front. Pinyin, meaning and an example are on the back. Answer Again, Hard, Good or Easy, and Inkday decides when to show the card next: in a minute or in a few days. If you skip a session, your cards wait for you. WHAT TO LEARN TODAY The Today screen shows how many cards are due, how many days in a row you've studied, and what's coming up tomorrow. ALL 214 KANGXI RADICALS The radicals come ready in themed decks: People and the Body, Actions and Movement, Nature and the Elements. Start right away, no need to make your own cards. Once you know the radicals, new characters are easier to break down. DICTIONARY Search by character, pinyin or meaning. Turn any word into a card with one tap. WRITING ON IPAD You get the meaning and pinyin, and you write the character from memory with Apple Pencil. Inkday checks each stroke for position and order. Stuck? Tap Hint. COPYBOOKS ON IPAD Build a copybook from a single character or a whole sentence. First trace the model, then write over the outline, then from memory, in a 田字格 grid like a school exercise book. IPHONE AND IPAD Decks, progress and copybooks sync through iCloud. Save a word on your iPhone during your commute and practise writing it on your iPad in the evening.

Screenshots

Yomu Mentor4 screens
Inkday4 screens

Verdict

The call

The clearest difference is in-app purchases: Inkday at none against Yomu Mentor's 2. Yomu Mentor's advantage is update cadence (daily vs every 9 days) and iOS requirement (17.0 vs 26.2). On price, ads 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. Yomu Mentor sells 2 in-app purchases, starting at $5.99 per month. Inkday asks for nothing beyond the download.

UpkeepUpdate frequency

Yomu Mentor ships an update daily, Inkday every 9 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Yomu Mentor versus Inkday: the parameters behind the verdict, then further details
ParameterYomu MentorInkday
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyDaily — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size45 MB33 MB
Age rating4+4+
DeveloperArchmob Pte LtdYury Bogdanov

In-app purchases

2 purchases

Yomu Mentor

Subscriptions2
  • Yomu Mentor Pro Monthly$5.991 Month
  • Yomu Mentor Pro7 Days trial$39.991 Year
None

Inkday

No in-app purchases

Questions

Is Yomu Mentor free?
Yomu Mentor is free to download, with in-app purchases available.
Is Inkday free?
Inkday is free to download, with no in-app purchases.
Do Yomu Mentor or Inkday have ads?
Neither Yomu Mentor nor Inkday shows ads.
Which is updated more often, Yomu Mentor or Inkday?
Yomu Mentor ships an update daily, and Inkday every 9 days. Most recently, Yomu Mentor was updated on October 24, 2026 and Inkday on October 31, 2026.

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