面取りと開先２ vs Trigonometric Calculation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
面取りと開先２
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主に鉄鋼分野での面取り加工や溶接材料へ開先加工する際の寸法計算に特化したアプリになります。アプリ内説明図のいずれかの２要素の入力から他の寸法を算出することができます。また、本体のセンサーを使い簡易水準器としてや角度計としても利用できます。よろしくお願いします。
Trigonometric Calculation
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This is a calculation application for finding angles and side lengths of triangles. 1 We would appreciate a review if there are any problems such as calculation glitches. 2 I hope you will use this application for simple calculations. Please understand that we cannot be held responsible for any impact or disadvantage related to the quality of production activities caused by the calculations in this application.
Screenshots
Verdict
The clearest difference is price: Trigonometric Calculation at Free against 面取りと開先２'s $4.99. Trigonometric Calculation also leads on update cadence (every 6 weeks vs every 39 months). 面取りと開先２'s advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.5). On 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
Trigonometric Calculation is free to download; 面取りと開先２ costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
面取りと開先２ ships an update every 39 months, Trigonometric Calculation every 6 weeks. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | 面取りと開先２ | Trigonometric Calculation |
|---|---|---|
| Price | $4.99 | Free — better |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 39 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Tetsuya Morikawa | Risako Asai |
In-app purchases
面取りと開先２
No in-app purchases
Trigonometric Calculation
No in-app purchases
Questions
Is 面取りと開先２ free?
Is Trigonometric Calculation free?
Do 面取りと開先２ or Trigonometric Calculation have ads?
Which is updated more often, 面取りと開先２ or Trigonometric Calculation?
Other comparisons
