Comparison

sci.calculator vs 関数電卓

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

Head to head
About

sci.calculator

Features
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A stylish yet powerful scientific calculator. The app is designed with a single-screen layout for simple and intuitive operation. Calculation history is saved and can be reused easily. Results are shown in both mathematical notation and decimal format. 【Main Features】 • Basic arithmetic, modulo, trigonometric functions • Exponential, logarithmic, power and root calculations • Unit conversion and 47 scientific constants (CODEC2022) • Prime factorization, GCD and LCM • Binary, octal and hexadecimal calculations with logical operations • 8 memory slots • Permutations, combinations, and pseudo-random numbers • Systems of linear equations (up to 4 variables) • Polynomial equations (up to 4th degree) • Equation solving using Newton’s method • Time and angle calculations • External keyboard support 【Designed for Ease of Use】 • Unit conversion includes intuitive units such as “Tokyo Dome volume,” light-years, and cooking measurements. • Choose from 6 color themes to match your iPhone or iPad. • Quick switching between RAD/DEG and number bases on a single screen. • Supports iPad multitasking, allowing calculations alongside other apps. Clean, readable, and efficient. A scientific calculator that combines functionality with a modern design.

About

関数電卓

Features
Read full description

Casio fx-991にインスパイアされた本格派の関数電卓アプリです。 【特徴】 - 三角関数(sin・cos・tan・逆三角関数) - 対数(log・ln)・べき乗・平方根 - SHIFT機能で第2機能に切り替え - メモリ機能(M+・M-・MR) - DEG/RAD切り替え - 計算式と結果を同時表示 - 見やすいCasio風液晶ディスプレイ - 日本語・英語対応 大学の授業・理工系の仕事・日常の計算まで幅広く対応。

Screenshots

sci.calculator3 screens
関数電卓3 screens

Verdict

The call

The clearest difference is in-app purchases: 関数電卓 at none against sci.calculator's 1. sci.calculator's advantage is iOS requirement (15.0 vs 26.5). On price, update cadence, 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. sci.calculator sells 1 one-off in-app purchase. 関数電卓 asks for nothing beyond the download.

UpkeepUpdate frequency

sci.calculator ships an update every 5 weeks, 関数電卓 monthly. Both last shipped on November 7, 2026.

Scorecard2 real differences · 4 level
sci.calculator versus 関数電卓: the parameters behind the verdict, then further details
Parametersci.calculator関数電卓
PriceFreeFree
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.5
Further details — not scored
Size49 MB8 MB
Age rating4+4+
DeveloperYukihiro ShioyaKouki Yoshimoto

In-app purchases

1 purchases

sci.calculator

One-time1
  • remove Ads$1.99
None

関数電卓

No in-app purchases

Questions

Is sci.calculator free?
sci.calculator is free to download, with in-app purchases available.
Is 関数電卓 free?
関数電卓 is free to download, with no in-app purchases.
Do sci.calculator or 関数電卓 have ads?
Neither sci.calculator nor 関数電卓 shows ads.
Which is updated more often, sci.calculator or 関数電卓?
sci.calculator ships an update every 5 weeks, and 関数電卓 monthly. Most recently, sci.calculator was updated on November 7, 2026 and 関数電卓 on November 7, 2026.

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