AreaCalculator byNSDev vs 勾配電卓
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AreaCalculator byNSDev
Calculate the area of 58 different shapes, including polygons, circles, ellipses, and parabolas. Input side lengths and angles for accurate measurements. Request new features for future updates.
- Calculate area of 58 shapes
- Supports triangles, squares, polygons
- Calculates circles, ellipses, pies
- Handles arcs and parabolic areas
- Input side lengths and angles
- Feature request functionality
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It is an application that calculates the area. We will calculate the length of the area and some from the sides and angle triangle, square, regular polygons, circles, ellipses, pies, pies ellipse, arc, elliptical arc, or parabola. You can calculate the current 58 kinds of shapes. If you have any request, please fill in the comment. I will also want to add functionality as much as possible. Note: The length of the arc of the ellipse is determined by the integration because it takes a long time, there is a slight difference.
勾配電卓
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建築の設計等における勾配計算を助けるシンプルで使いやすいアプリ。 水平距離・垂直距離または勾配を条件として入力するだけで、瞬時に計算。 勾配は%と1/xに対応。
Screenshots
Verdict
The clearest difference is update cadence: AreaCalculator byNSDev at every 13 months against 勾配電卓's every 45 months. AreaCalculator byNSDev also leads on iOS requirement (12.0 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AreaCalculator byNSDev ships an update every 13 months, 勾配電卓 every 45 months. Both last shipped on September 10, 2026.
| Parameter | AreaCalculator byNSDev | 勾配電卓 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 13 months — better | Every 45 months |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | NIHON SYSTEM DEVELOPER CORPORATION | Takahiro Miyashita |
In-app purchases
AreaCalculator byNSDev
No in-app purchases
勾配電卓
No in-app purchases
Questions
Is AreaCalculator byNSDev free?
Is 勾配電卓 free?
Which is updated more often, AreaCalculator byNSDev or 勾配電卓?
Other comparisons
