Comparison

Drafting Utility 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

Drafting Utility

for Design, Drafting, Creation

About

Drafting Utility

Features

Read full description

TriangleCalc is a simple calculator that calculates the lengths and angles of the sides of a triangle. By entering two values, the other values are automatically calculated.

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

Drafting Utility3 screens

関数電卓3 screens

Verdict

The call

The clearest difference is ads: 関数電卓 at none against Drafting Utility's shown. Drafting Utility's advantage is update cadence (daily vs monthly) and iOS requirement (16.6 vs 26.5). 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

Drafting Utility ships an update daily, 関数電卓 monthly. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 3 level

Drafting Utility versus 関数電卓: the parameters behind the verdict, then further details
Parameter	Drafting Utility	関数電卓
Price	Free	Free
Update frequency	Daily — better	Monthly
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	16.6 — better	26.5
Further details — not scored
Size	3 MB	8 MB
Age rating	4+	4+
Developer	Masaharu Tsukamoto	Kouki Yoshimoto

In-app purchases

None

Drafting Utility

No in-app purchases

None

関数電卓

No in-app purchases

Questions

Is Drafting Utility free?

Drafting Utility is free to download, with no in-app purchases.

Is 関数電卓 free?

関数電卓 is free to download, with no in-app purchases.

Do Drafting Utility or 関数電卓 have ads?

Drafting Utility shows ads; 関数電卓 does not.

Which is updated more often, Drafting Utility or 関数電卓?

Drafting Utility ships an update daily, and 関数電卓 monthly. Most recently, Drafting Utility was updated on November 8, 2026 and 関数電卓 on November 7, 2026.