Comparison

Digital Japanese Clock vs 電卓

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

Head to head
About

Digital Japanese Clock

Experience the Edo period's unique timekeeping with this digital clock. It simulates the indefinite time method, dividing days and nights into variable lengths. Customize sounds, displays, and backgrounds for an immersive historical experience.

Highlights
  • Indefinite time method simulation
  • Customizable bell sounds (drums, cannons, cuckoo)
  • Multiple display options (zodiac, numerals, emojis)
  • Adjustable background color and font
  • Optional modern sub-clock display
  • Settings for time methods and display elements
Features
Read full description

A wadokei is a mechanical clock made in Japan during the Edo period. At that time, Japan used a unique time system called the "indefinite time method". It is a method of dividing the day into day and night and then dividing each into equal parts. The common people of the Edo period began their day's activities by listening to the "dawn six bells" about 30 minutes before sunrise and ended their activities by listening to the "dusk six bells" about 30 minutes after sunset. Naturally, the time of sunrise and sunset varied with the seasons, so the time of bell ringing and the length of the unit of time, ittoki, between day and night also changed greatly. But not only was this perfectly acceptable at the time, it was also an eco-friendly way of living that suited their body rhythms very well. This app is a digital representation of this indefinite time method. The hour bells can be switched not only to the sound of bells, but also to drums, cannons, cuckoo, pillar clocks, etc. The main display can be selected from zodiac signs, numerals, and emojis. You can open the settings screen by tapping twice on the main display or by tapping the settings icon. You can change the background color, font, time methods, show/hide sub-clock, etc. here. The sub-clock in the lower left corner of the screen can also display a modern clock. You can switch the display between 24 hours, 12 hours, numerals, and zodiac signs with each tap. Please use this application and experience the rhythm of life in the Edo period. Perhaps you will discover something good.

About

電卓

Features
Read full description

CalcNoteは、計算式の数値に「ラベル」を付けて管理できる電卓アプリです。 【こんな方におすすめ】 ・家計の収支を計算しながらメモしたい方 ・見積もりや簡易会計に電卓を使う方 ・計算の根拠を後から確認したい方 【主な機能】 ▼ ラベル付き数式 数値ひとつひとつに「収入」「家賃」「消費税」など自由にラベルを設定できます。後から見返したとき、何の数字か一目でわかります。 ▼ 計算履歴 「=」を押すだけで自動的に履歴に保存。日時・数式・結果をまとめて記録します。 ▼ テンプレート よく使う計算式をテンプレートとして保存。毎回入力し直す手間がなくなります。 ▼ カーソル自由操作 入力した数式の好きな位置に、長押し+ドラッグでカーソルを移動して編集できます。 ▼ CSVエクスポート/インポート 計算履歴をCSVファイルで書き出し・読み込みできます。Excelでの管理にも対応。 ▼ プライバシー安心設計 すべてのデータは端末内にのみ保存。ネットワーク通信は一切行いません。 【表示設定】 ・桁区切り表示(1,000形式)のON/OFF ・ダークモード対応

Screenshots

Digital Japanese Clock4 screens
電卓4 screens

Verdict

The call

The clearest difference is in-app purchases: 電卓 at none against Digital Japanese Clock's 1. 電卓 also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 weeks). Digital Japanese Clock's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price 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. Digital Japanese Clock sells 1 one-off in-app purchase. 電卓 asks for nothing beyond the download.

UpkeepUpdate frequency

Digital Japanese Clock ships an update every 6 weeks, 電卓 every 5 days. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Digital Japanese Clock versus 電卓: the parameters behind the verdict, then further details
ParameterDigital Japanese Clock電卓
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better17.0
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperMihoko Arakieisuke yoshikawa

In-app purchases

1 purchases

Digital Japanese Clock

One-time1
  • No Ads$1.99
None

電卓

No in-app purchases

Questions

Is Digital Japanese Clock free?
Digital Japanese Clock is free to download, with in-app purchases available.
Is 電卓 free?
電卓 is free to download, with no in-app purchases.
Do Digital Japanese Clock or 電卓 have ads?
Digital Japanese Clock shows ads; 電卓 does not.
Which is updated more often, Digital Japanese Clock or 電卓?
Digital Japanese Clock ships an update every 6 weeks, and 電卓 every 5 days. Most recently, Digital Japanese Clock was updated on October 1, 2026 and 電卓 on October 12, 2026.

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