単位計算機 vs UnitConverter byNSDev
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
単位計算機
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これは、単位の変換を行うためのアプリです。 通常の単位の変換以外にも、いくつかのパターンで画像イメージに変換することもできます。 長さ、重さ、面積、体積、角度、時間、速度、温度、力、圧力、加速度、エネルギー ※画像で表示してほしい単位について、リクエストを受け付けています。 サポートページの単位計算機のページから、入力してください。
UnitConverter byNSDev
This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.
- Converts 26 types of units
- Displays conversion rates
- Customizable decimal places
- Supports numerous units in various categories
- User-submitted unit requests
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Tool to convert each of 26 types of units. When you select a unit of value that you enter, you create a table to calculate all the other units. It also displays the conversion rate. You can also specify the number of decimal places. 23 units in Length 18 units in Area 31 units in Volume 15 units in Mass 5 units in Angle 4 units in Temperature 7 units in Time 3 units in Frequency 5 units in Force 17 units in Pressure 6 units in Energy 6 units in Power rate 13 units in Speed 14 units in Acceleration 2 units in Dynamic viscosity 4 units in Kinematic viscosity 3 units in Magnetic flux density 2 units in Magnetic flux 7 units in Luminance 4 units in Illuminance 3 units in Radiation - source activity 2 units in Radiation - absorbed dose 2 units in Radiation - equivalent dose 2 units in Radiation - exposure 7 units in Infomation 7 units in Resolution Because we want to support units around the world, We will wait for the name and unit conversion information. Please enter your review.
Screenshots
Verdict
The clearest difference is ads: UnitConverter byNSDev at none against 単位計算機's shown. UnitConverter byNSDev also leads on update cadence (every 5 months vs every 27 months) and review sentiment (20% vs 0%). 単位計算機's advantage is iOS requirement (12.0 vs 15.6). 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.
単位計算機 ships an update every 27 months, UnitConverter byNSDev every 5 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.
| Parameter | 単位計算機 | UnitConverter byNSDev |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 20.0% of reviews — better |
| Number of ratings | 6 — better | — |
| Update frequency | Every 27 months | Every 5 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Seiji Nagano | NIHON SYSTEM DEVELOPER CORPORATION |
Customer experience
単位計算機
UnitConverter byNSDev
In-app purchases
単位計算機
No in-app purchases
UnitConverter byNSDev
No in-app purchases
Questions
Is 単位計算機 free?
Is UnitConverter byNSDev free?
Do 単位計算機 or UnitConverter byNSDev have ads?
Which is updated more often, 単位計算機 or UnitConverter byNSDev?
Other comparisons
