Comparison

Japanese Ruby vs Furigana Camera

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

Head to head
About

Japanese Ruby

This app automatically adds furigana (ruby characters) to Japanese text. It supports input via camera, photos, pasting, and handwriting, making it ideal for beginners learning Japanese. You can also export text with furigana to PDF via email.

Highlights
  • Add furigana to Japanese text
  • Input via camera
  • Input via photo library
  • Handwriting recognition for kanji
  • Export to PDF with furigana
  • Study with hiragana or English
Features
Read full description

This is an APP that add ruby characters (furigana) to Japanese inputted by camera, photo, pasting, handwriting for Japanese beginner automatically. Usage 1: You can copy characters from Safari, and paste them into the text box, and study Japanese with hiragana or English characters. Usage 2: You can study Japanese by camera or photo library. Usage 3: You can input unknown kanji by handwriting and check how to read it. Usage 4: You can input text with keyboard, and send the text with ruby in PDF by mail.

About

Furigana Camera

This app uses your device's camera to add furigana (pronunciation guides) and romanized characters to Japanese text in photos. It supports both vertical and horizontal layouts, with adjustable font sizes and a dark mode option for comfortable reading.

Highlights
  • Add furigana to kanji via camera
  • Convert text from photos and camera
  • Supports vertical and horizontal text
  • Adjustable font size
  • Dark mode support
  • Romanized character conversion
Features
Read full description

Japanese book reading support app. Add furigana/hiragana on kanji via camera. [Features] -Convert text in photos from your album (gallery) or camera into furigana and romanized characters -Supports both vertical and horizontal text formats -Adjustable font size for characters and furigana (ruby) -Dark mode support [Usage Examples] -When encountering difficult kanji while reading -When coming across unfamiliar words in newspapers -As a companion for studying Japanese -To assist with homework -For speech support, when you need furigana for kanji -When struggling with kanji in textbooks and needing furigana -To support foreigners by providing furigana -When picking up a difficult, thick, kanji-heavy book or one with a complex writing style -When wanting to read a kanji-heavy manga smoothly with furigana (though this may vary) -When introducing this app to IT supporters and ICT education supporters *Internet connection required Web Services by Yahoo! JAPAN (https://developer.yahoo.co.jp/sitemap/)

Screenshots

Japanese Ruby4 screens
Furigana Camera4 screens

Verdict

The call

The clearest difference is review sentiment: Furigana Camera at 60% against Japanese Ruby's 0%. Furigana Camera also leads on update cadence (every 2 months vs every 4 months). Japanese Ruby's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. Furigana Camera sells 3 in-app purchases, starting at $2.99 per month. Japanese Ruby asks for nothing beyond the download.

UpkeepUpdate frequency

Japanese Ruby ships an update every 4 months, Furigana Camera every 2 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Japanese Ruby versus Furigana Camera: the parameters behind the verdict, then further details
ParameterJapanese RubyFurigana Camera
PriceFreeFree
Rating—4.0 (5 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size102 MB95 MB
Age rating4+4+
DeveloperMicrostone Inc.Koji Watanabe

Customer experience

Japanese Ruby

Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

Furigana Camera

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

In-app purchases

None

Japanese Ruby

No in-app purchases

3 purchases

Furigana Camera

Subscriptions2
  • Premium Feature Subscription$2.991 Month
  • Premium Feature Subscription$29.991 Year
One-time1
  • Donate$4.99

Questions

Is Japanese Ruby free?
Japanese Ruby is free to download, with no in-app purchases.
Is Furigana Camera free?
Furigana Camera is free to download, with in-app purchases available.
Do Japanese Ruby or Furigana Camera have ads?
Furigana Camera shows ads; Japanese Ruby does not.
Which is updated more often, Japanese Ruby or Furigana Camera?
Japanese Ruby ships an update every 4 months, and Furigana Camera every 2 months. Most recently, Japanese Ruby was updated on November 2, 2026 and Furigana Camera on November 6, 2026.

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