Comparison

にほんご電卓 vs ReadableCalc

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

Head to head
About

にほんご電卓

Features
Read full description

にほんご電卓は、数字に「万」「億」などの漢字区切りを付けて表示するので、すばやく直感的に数字を読み取れます。 ・72桁(無量大数)まで表示できるので、大きな数もらくらく計算できます。 ・計算結果のみならず、入力した数字も漢字区切りを付けて表示します。 ・漢字区切り - 3桁区切りは、1タップで切り替えできます。 ・「数式通りに計算」「入力順に計算」の2種類の計算順に対応。 ・メモリー機能付き。 ・カッコ計算が可能(数式通りに計算時のみ)。 ・パーセント(%)計算。 ・長押しでコピー&ペースト機能付き。 【免責事項】 計算結果には万全を期していますが、このAppを使用したことにより生じた損害、損失、不利益等に対しては、一切の責任を負いませんので、あらかじめご了承ください。 【仕様】 ・日本語表示の場合、千,万,億,兆,京,垓,ジョ,穣,溝,澗,正,載,極,恒河沙,阿僧祇,那由多,不可思議,無量大数 の72桁表示

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

にほんご電卓4 screens
ReadableCalc3 screens

Verdict

The call

The clearest difference is ads: ReadableCalc at none against にほんご電卓's shown. ReadableCalc also leads on update cadence (weekly vs monthly) and iOS requirement (12.0 vs 15.6). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

にほんご電卓 ships an update monthly, ReadableCalc weekly. The most recent releases landed on June 9, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 6 level
にほんご電卓 versus ReadableCalc: the parameters behind the verdict, then further details
Parameterにほんご電卓ReadableCalc
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size4 MB28 MB
Age rating4+4+
DeveloperKURAKUKOBOYONAGARE LAB

In-app purchases

None

にほんご電卓

No in-app purchases

None

ReadableCalc

No in-app purchases

Questions

Is にほんご電卓 free?
にほんご電卓 is free to download, with no in-app purchases.
Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Do にほんご電卓 or ReadableCalc have ads?
にほんご電卓 shows ads; ReadableCalc does not.
Which is updated more often, にほんご電卓 or ReadableCalc?
にほんご電卓 ships an update monthly, and ReadableCalc weekly. Most recently, にほんご電卓 was updated on June 9, 2026 and ReadableCalc on September 20, 2026.

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