Comparison

成金電卓 vs ReadableCalc

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

Head to head
About

成金電卓

Features
Read full description

このアプリは日頃、売り上げや買い物の金額が高額で、電卓で計算しようとしても0が多すぎて困っている、もしくは困っているふりをしたい人のために作りました。 兆、億、万、00,000という専用キーを使うことで簡単に高額計算ができます。 たとえば、普通の電卓で1兆3000円と入力する場合は、下記のように13回キーを叩く必要があります。 [1][0][0][0][0][0][0][0][0][3][0][0][0] このアプリでは[1][兆][3][000]と、たった4回キーを叩くだけで入力できてしまいます。 また、履歴領域には計算履歴が表示されます。この履歴領域は見やすいように、0を挿入して桁合わせを行っています。 さらに、[税込],[税抜]キーを押すだけで消費税の計算が簡単にでき、内訳を履歴エリアにわかりやすく表示します。 括弧を使った計算も可能です。 この電卓にはメモリーキーがありませんが、履歴エリアの数字を簡単に再利用(入力エリアにコピー)できるようになっています。 歯車のついたキーを押すと設定画面に移行し、消費税率や、小数点以下の表示桁数の設定、履歴の確認とメール送信や消去ができるようになっています。 本アプリは無料ですが、履歴上部に広告を表示します。 この設定画面で広告非表示オプションを購入していただくことで、広告を表示しないようにすることも可能です。

About

ReadableCalc

Features
Read full description

ReadableCalc is a calculator app that displays large numbers—like 3 trillion 500 billion—in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features • Supports four basic operations (+, −, ×, ÷) • Displays results in English numeric units for easy readability • Handles decimals and negative numbers • DEL button for deleting one character at a time (Long press to clear the entire expression) • Long press on expressions or results to copy • Tap on the “readable” result to toggle display between: • Short scale / Long scale / Kanji numerals Additional features in landscape mode: • “00”, “000”, and “0000” buttons for quickly adding zeros • “x²” and “x³” buttons for quick exponentiation Note: • Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. • Short scale and Long scale support numbers up to 10^198. • Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

Screenshots

成金電卓4 screens
ReadableCalc3 screens

Verdict

The call

The clearest difference is in-app purchases: ReadableCalc at none against 成金電卓's 1. ReadableCalc also leads on update cadence (weekly vs every 7 months). 成金電卓's advantage is iOS requirement (6.1 vs 12.0). 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. 成金電卓 sells 1 one-off in-app purchase. ReadableCalc asks for nothing beyond the download.

UpkeepUpdate frequency

成金電卓 ships an update every 7 months, ReadableCalc weekly. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 4 level
成金電卓 versus ReadableCalc: the parameters behind the verdict, then further details
Parameter成金電卓ReadableCalc
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 7 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.1 — better12.0
Further details — not scored
Size24 MB28 MB
Age rating4+4+
Developere-skett Corp.YONAGARE LAB

In-app purchases

1 purchases

成金電卓

One-time1
  • 広告非表示オプション$0.99
None

ReadableCalc

No in-app purchases

Questions

Is 成金電卓 free?
成金電卓 is free to download, with in-app purchases available.
Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Do 成金電卓 or ReadableCalc have ads?
Neither 成金電卓 nor ReadableCalc shows ads.
Which is updated more often, 成金電卓 or ReadableCalc?
成金電卓 ships an update every 7 months, and ReadableCalc weekly. Most recently, 成金電卓 was updated on October 5, 2026 and ReadableCalc on October 7, 2026.

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