Drafting Utility vs 設計用電卓
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drafting Utility
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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.
設計用電卓
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いつもの計算に、ちょっとした便利さをプラス。 「設計用電卓」は、スマホでの使いやすさを追求したシンプルな電卓アプリです。 ● 主な機能： ・履歴表示機能：最大3件まで計算結果を保持 ・便利なショートカット：910グリッドの設計に便利なショートカットを搭載 ・見やすいUI：どんな画面サイズでも操作しやすいレイアウト ・スムーズな動作：軽量設計でサクサク動く！ 今すぐインストールして、あなたの計算をもっとスムーズに！
Screenshots
Verdict
The clearest difference is update cadence: Drafting Utility at daily against 設計用電卓's every 3 days. 設計用電卓's advantage is iOS requirement (12.0 vs 16.6). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Drafting Utility ships an update daily, 設計用電卓 every 3 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.
| Parameter | Drafting Utility | 設計用電卓 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 3 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Masaharu Tsukamoto | Kairu Inoue |
In-app purchases
Drafting Utility
No in-app purchases
設計用電卓
No in-app purchases
