Comparison

Number, having it up my watch vs Nihongo Master Dictionary

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

Head to head
About

Number, having it up my watch

Read full description

Firstly, this app has been specially created with people who not only are big fan of Apple Watch but also plan to visit Japan or are interested in Kanji number letters in particular and also wonder how to write them. And, you can also select between 2 languages, such as English or Japanese, at the bottom of the page. Secondly, if you dropped by a Japanese-style restaurant in Japan, such as Izakaya (Japanese-style pub), Ryo-tei (Japanese restaurant), buckwheat noodle restaurant, you would probably see some prices on a menu that is written in Kanji number or Japanese-number letters. Then, this app would come in hoping to help you to read how much it is naturally. The app covers some letters of number, such as [one] to [ten], [hundred], [thousand], which are basic Japanese-number or Kanji-number letters, and shows how to read and write. Thirdly, there are two ways to learn Japanese-number or Kanji-number letters on the app. The one is using [Number List] button, on which you can choose one of Number letters from the list. The other is using [Find Number] button, on which you can set a number between 1-digit and 4-digit, then you can make sure how to write the number you set using Japanese-number letters. As you use the app, you would probably notice to associate Japanese-number or Kanji-number letters from one to ten with English numbers from one to ten respectively though; there is not any Japanese-number or Kanji-number letters associating with eleven, for example. So, if you wanted to write eleven in Japanese-number letters, you should use two letters [ten] and [one], because you could describe eleven saying ten plus one. Following this rule, 21 is written in Japanese-number letters using [two], [ten] and [one], because two times ten plus one is 21. Lastly, I would like you to feel like having a bit of Kanji number letters up your Apple Watch, as the saying goes, "have something up one's sleeve."

About

Nihongo Master Dictionary

This Japanese dictionary app helps users quickly find words and kanji with example sentences and JLPT levels. Create custom study lists and use flashcards to build vocabulary. It also offers popular study lists for common situations like travel and work.

Highlights
  • Word and kanji lookup
  • Example sentences
  • Related kanji information
  • JLPT level indicators
  • Custom study lists
  • Flashcard vocabulary builder
  • Popular situational study lists
Features
Read full description

Nihongo Master Dictionary is a fast, beautiful, and completely offline Japanese–English dictionary — built for learners at every level, from your first hiragana to JLPT N1. Look up any of 190,000+ words and 6,000+ kanji in an instant, with no internet connection required. Everything lives on your device, so it's always fast and always available — on the train, on a plane, or anywhere. SEARCH ANY WAY YOU THINK • Search in English, Japanese, or rōmaji (type "taberu" or 食べる) • Smart search understands conjugated verbs — 食べました finds 食べる • Results ranked by how common words actually are MASTER KANJI • 6,000+ kanji with meanings, readings, and JLPT level • Watch stroke-order animations, then practice writing with guided feedback • Find any kanji by its radicals • Listen to native pronunciation for many readings UNDERSTAND REAL JAPANESE • Full conjugation tables for every verb and adjective • Paste in a sentence and tap any word to break it down • Real-world example sentences show words in context STUDY & REMEMBER • Star your favorites and revisit recent lookups • Build custom study lists, or add popular community lists • Review with built-in spaced repetition so it sticks Nihongo Master Dictionary is free, supported by ads. A one-time in-app purchase removes ads forever. Ready to go beyond the dictionary? Nihongo Master offers full structured Japanese lessons at nihongomaster.com.

Screenshots

Nihongo Master Dictionary4 screens

Verdict

The call

The clearest difference is price: Nihongo Master Dictionary at Free against Number, having it up my watch's $0.99. Number, having it up my watch's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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

Nihongo Master Dictionary is free to download; Number, having it up my watch costs $0.99 up front. Nihongo Master Dictionary sells 1 one-off in-app purchase. Number, having it up my watch asks for nothing beyond the download.

UpkeepUpdate frequency

Number, having it up my watch ships an update every 37 months, Nihongo Master Dictionary every 21 months. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Number, having it up my watch versus Nihongo Master Dictionary: the parameters behind the verdict, then further details
ParameterNumber, having it up my watchNihongo Master Dictionary
Price$0.99Free — better
Rating—4.5 (6 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—6 — better
Update frequencyEvery 37 monthsEvery 21 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size4 MB242 MB
Age rating4+4+
DeveloperHajime SasakiNihongo Master

In-app purchases

None

Number, having it up my watch

No in-app purchases

1 purchases

Nihongo Master Dictionary

One-time1
  • Remove Ads$0.99

Questions

Is Number, having it up my watch free?
Number, having it up my watch costs $0.99, with no in-app purchases.
Is Nihongo Master Dictionary free?
Nihongo Master Dictionary is free to download, with in-app purchases available.
Do Number, having it up my watch or Nihongo Master Dictionary have ads?
Nihongo Master Dictionary shows ads; Number, having it up my watch does not.
Which is updated more often, Number, having it up my watch or Nihongo Master Dictionary?
Number, having it up my watch ships an update every 37 months, and Nihongo Master Dictionary every 21 months. Most recently, Number, having it up my watch was updated on November 3, 2026 and Nihongo Master Dictionary on November 3, 2026.

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