Comparison

Furigana PDF vs Learning Clock Timer

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

Head to head
About

Furigana PDF

Easily add furigana reading aids to Japanese PDF documents. This app automatically annotates Kanji characters and allows customization to match your PDF's layout. You can also scan paper documents and add furigana, with all processing done offline for privacy.

Highlights
  • Automatic furigana annotation
  • Customizable furigana display
  • Scan and annotate paper documents
  • Offline processing for privacy
  • Supports horizontal and vertical text
  • Export annotated PDFs
Features
Read full description

Struggling to read Japanese texts? Furigana PDF has you covered. Open any Japanese language PDF and Furigana PDF will automatically add furigana reading aids (ruby) to all Kanji characters. You can customize furigana display to match the layout of your existing PDF to create beautiful documents. You can also scan existing paper documents with your camera and add furigana. Naturally, furigana-annotated PDFs can be exported and opened in other applications or ebook readers. We respect your privacy. Furigana annotation works entirely offline and no data ever leaves your device. You can easily organize your PDFs in the Files app. No internet connection, account, or login required. Furigana PDF supports both horizontal and vertical text.  Please note that in rare cases furigana display may fail if crucial layout information is absent from the source PDF.

About

Learning Clock Timer

This app helps children learn to tell time with interactive analog and digital clocks, customizable alarms, and a visual timer. It's also designed for seniors with its large, easy-to-read display.

Highlights
  • Interactive analog and digital clocks
  • Customizable alarms with labels and images
  • Visual circle-shaped timer
  • Large, easy-to-read display
  • Multiple color themes and customization options
  • Accessibility features
Features
Read full description

This is an all-in-one clock learning app for children that includes a clock, alarm, and timer. We also recommend this app for seniors who are looking for a clock app with a large display that is easy to read. By using this app with your child, they will naturally acquire a sense of time and will be able to act calmly. They can also learn how to read a clock correctly. We hope you will make use of this app at home and at school. [ MAIN FUNCTIONS ] - Clock Both analog and digital clocks are displayed in large size and are very easy to read. There are various functions that are useful in learning how to read a clock, such as dragging the hands of the clock with your finger to move them freely and switching the clock display mode with a single button. - Alarm The alarm screen displays both the current time and the scheduled time, making it easy to keep track of the time remaining until the scheduled time. Each alarm can be assigned an easy-to-understand label and image, so it can be used as a simple scheduler. - Timer The timer features a circle-shaped meter display for easy visualization of remaining time, and four buttons for quick and easy time setting. - Customization The settings screen allows you to customize all functions related to the clock in detail. You can also choose your favorite design from more than 10 different color themes. It is also possible to adjust the color of the text, the color of the hands of the clock, etc. [ TARGET USERS ] The main target users are between 4 and 12 years old, but the app was developed to be easy to use for people of all ages, from small children to seniors. The app is also compatible with various accessibility features, so we hope that it can be used as a support tool for people with disabilities. [ NOTES ] - When a small child uses the app, please use it with parents or guardians until the child becomes accustomed to its operation. - If Focus mode is ON in the device settings, the alarm sound will not sound. In that case, please register this app as an app that allows notifications in Focus settings. - For convenience, the app does not automatically sleep while the clock, alarm, and timer are in operation. Please be aware of the remaining battery level, etc. This function can be turned off in the settings within the app.

Screenshots

Furigana PDF3 screens
Learning Clock Timer4 screens

Verdict

The call

The clearest difference is price: Furigana PDF at Free against Learning Clock Timer's $3.99. Furigana PDF also leads on rating (4.0 vs 3.0) and in-app purchases (none vs 3). Learning Clock Timer's advantage is iOS requirement (15.0 vs 17.0). On ratings volume, 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

Furigana PDF is free to download; Learning Clock Timer costs $3.99 up front. Learning Clock Timer sells 3 one-off in-app purchases. Furigana PDF asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Furigana PDF holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Furigana PDF ships an update every 5 months, Learning Clock Timer every 24 months. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Furigana PDF versus Learning Clock Timer: the parameters behind the verdict, then further details
ParameterFurigana PDFLearning Clock Timer
PriceFree — better$3.99
Rating4.0 (2 ratings) — better3.0 (1 ratings)
Positive reviews69.2% of reviews—
Number of ratings2 — better1
Update frequencyEvery 5 months — betterEvery 24 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size54 MB6 MB
Age rating4+4+
Developertelethon k.k.Keaton.com

Customer experience

Furigana PDF

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive69.2%
Neutral15.4%
Negative15.4%

Learning Clock Timer

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Furigana PDF

No in-app purchases

3 purchases

Learning Clock Timer

One-time3
  • Send money for coffee$0.99
  • Send money for lunch$2.99
  • Send money for books$7.99

Questions

Is Furigana PDF free?
Furigana PDF is free to download, with no in-app purchases.
Is Learning Clock Timer free?
Learning Clock Timer costs $3.99, and also offers in-app purchases.
Which has better reviews, Furigana PDF or Learning Clock Timer?
Furigana PDF is rated higher. Furigana PDF averages 4.0 out of 5 from 2 ratings, while Learning Clock Timer averages 3.0 from 1 ratings.
Do Furigana PDF or Learning Clock Timer have ads?
Neither Furigana PDF nor Learning Clock Timer shows ads.
Which is updated more often, Furigana PDF or Learning Clock Timer?
Furigana PDF ships an update every 5 months, and Learning Clock Timer every 24 months. Most recently, Furigana PDF was updated on September 25, 2026 and Learning Clock Timer on September 21, 2026.

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