Comparison

らくらく電卓 vs e

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

Head to head
About

らくらく電卓

This simple calculator app keeps a history of your calculations and allows you to edit input formulas. It also features a comparison tool for shopping to easily determine the best value between two items.

Highlights
  • Calculation history and results
  • Editable input formulas
  • Copy and paste past calculations
  • Two-item price comparison
  • Offline functionality
  • No internet or account required
Features
Read full description

「らくらく電卓」は、計算式と結果を残しながら使える、シンプルな電卓アプリです。 日々の計算から、お買い物での価格比較まで、手軽に使えます。 計算式と答えを画面に残せるので、あとから計算の流れを確認できます。 入力中の式はカーソルを動かして修正でき、過去の式や結果を誤って書き換える心配もありません。 お買い物には「比較」機能が便利です。 2商品の価格と内容量・個数を入力すると、単価を自動で比較し、どちらがお得かすぐに分かります。 【主な機能】 - 四則演算、括弧、累乗、平方根 - 計算式と結果の履歴保存 - 前回の計算結果の呼び出し - 過去の式・結果のコピー - 入力中の式へのペースト - 2商品の単価比較 - 全消去前の確認表示 インターネット接続やアカウント登録は不要です。 計算と履歴保存は端末内で完結し、オフラインでも使えます。

About

e

Features
Read full description

e-おうちリモコン will allow you to achieve an environmentally friendly energy-saving life without stress, and provide you with various services to achieve a more comfortable and safer life. e-おうちリモコン will provide you with electricity usage information intelligently, reliably, and in real time through news feed, and use an intuitive and easy-to-understand user interface to let you know the home situation at a glance. e-おうちリモコン will serve as the core of life, providing you with an environment-friendly, convenient and safe life more intelligently. e-おうちリモコン will subvert your imagination of home energy management system (HEMS) and provide you with energy Internet of Things services.

Screenshots

らくらく電卓1 screens
e3 screens

Verdict

The call

The clearest difference is iOS requirement: e at 13.0 against らくらく電卓's 15.6. On price, update cadence, ads and in-app purchases 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

らくらく電卓 ships an update every 3 weeks, e fortnightly. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

Scorecard1 real difference · 7 level
らくらく電卓 versus e: the parameters behind the verdict, then further details
Parameterらくらく電卓e
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size1 MB84 MB
Age rating4+4+
Developernoboru hizukuriNextDrive Co.

In-app purchases

None

らくらく電卓

No in-app purchases

None

e

No in-app purchases

Questions

Is らくらく電卓 free?
らくらく電卓 is free to download, with no in-app purchases.
Is e free?
e is free to download, with no in-app purchases.
Do らくらく電卓 or e have ads?
Neither らくらく電卓 nor e shows ads.
Which is updated more often, らくらく電卓 or e?
らくらく電卓 ships an update every 3 weeks, and e fortnightly. Most recently, らくらく電卓 was updated on October 13, 2026 and e on October 17, 2026.

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