Kouzaitap for iPad vs eYACHO Viewer 6
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kouzaitap for iPad
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【Introduction】 This application calculates the weight(kg) and surface area(m2) of steel used in Japan (JIS Ferrous Materials & Metallurgy). It also provides a calculation of cross-sectional shape and performance. 【Functions】 You can share, memorize, and e-mail calculations with text and CSV files. You can enter standard of the steel plate. You will receive advertisements. 【Steels】 ●PLATE & SHEET Hot Rolled Steel Plates Checkered Steel Plates Expanded Metals Steel Decks Cold-reduced carbon steel sheets Hot Rolled Stainless Steel Plates Cold Rolled Stainless Steel Plates Circular Steel Plates QL Deck Super E Deck ●STEEL SECTION & BAR H Beams Channels Equal Leg Angles Unequal Leg Angles I Beams Flat Bars Round Bars Square Bars Unequal Leg and Unequal Thickness Angles Bulb Flats T Beams CT Beams Fixed Outer Dimensions H Beams ●LIGHT GAUGE STEEL Light Channel Steel Light Z Steel Light Angle Steel Lip Channel Steel Lip Z Steel Hat Steel Light Gauge H Steels Light Gauge Lip Type H Steels 鋼製天井下地材(19形) 鋼製天井下地材(25形) 鋼製壁下地材 ●STRUCTURAL STEEL TUBE/PIPE SHEET PILE Carbon Steel Tubes General(STK) Carbon Steel Square Pipes(STKR) Carbon Steel Rectangle Pipes(STKR) Carbon Steel Tubes Building(STKN) Steel Pipe Piles(SKK) Steel H Piles(SHK) U-Shaped Steel Sheet Pile Steel Bars For Concrete Reinforcement Carbon Steel Square Pipes Machine(STKMR) Carbon Steel Tubes Machine(STKM) 建築構造用冷間ロール成形角形鋼管(BCR) 建築構造用冷間プレス成形角形鋼管(BCP) トルシア形高力ボルト 高力六角ボルト ND core ●STEEL PIPES FOR PIPING Carbon Steel Pipes Ordinary Piping(SGP) Arc Welded Carbon Steel Pipes(STPY) Coated Steel Pipes Water Service(STW) Carbon Steel Pipes Pressure Service(STPG) Carbon Steel Pipes High Pressure Service(STS) Carbon Steel Pipes High Temperature Service(STPT) Alloy Steel Pipes(STPA) Steel pipes Low Temperature Service(STPL) Stainless Steel Pipes(SUS304TP) Stainless Steel Pipes(SUS316TP) Large Diameter Welded Stainless Steel Pipes(SUS304TPY) Large Diameter Welded Stainless Steel Pipes(SUS316TPY) ●SECTIONAL SHAPES H/I Beams Channels Angles T Beams Round Hollow Tubes Rectangular Hollow Section Round Bars Rectangular Bars Hexagonal Bars ●STAINLESS STEEL FOR BUILDING STRUCTURE Circular Steel Pipes Square Steel Pipes Hot-Rolled H Beams Hot-Rolled Channels Hot-Rolled Equal Leg Angles Cold-Rolled Equal Leg Angles 溶接H形鋼 溶接溝形鋼 Stainless Steel Bars For Concrete Reinforcement ●HOT-FORMED STAINLESS STEEL SECTIONS H Beams Channels Equal Leg Angles Unequal Leg Angles Round Bars Hexagonal Bars ●COLD-FORMED STAINLESS STEEL SECTIONS Channels Equal Leg Angles Unequal Leg Angles Lip Channels Hut Channels Flat Bars Round Bars Square Bars Hexagonal Bars kg is the basic unit of weight. A calculation is based on kg/m2 or kg/m. Please use it as a calculator to get a steel weight. 【 Calculation of steel’s surface area】 You can calculate a surface area of the steel, for example, to get the area of painting. Please note that “---m2 “appears when a surface area is not calculated. Please also read the app terms of use. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
eYACHO Viewer 6
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「eYACHO Viewer」は、「eYACHO for Business」を合わせてインストールして頂くと便利にお使いいただけます。 「eYACHO for Business」上の文書共有中の画面から、「eYACHO Viewer」で同じ文書の同じページを開くことができます。 「eYACHO for Business」とほぼ同等の機能があるので、Split Viewを利用するとデジタル野帳アプリ「eYACHO for Business」と合わせて、切り替えながら使うことで次のような操作が可能となります。 ・閲覧しながらメモ書き ・会議中に現在のページを参照しながら、別のページを修正 ・別々のページを同時に閲覧 このほかにも文書操作の用途が大きく広がります。 * eYACHO Viewerのご利用には専用のアカウントが必要です。 ■ 動作環境 ■ <OS> OS 13.6 以降 M1 Mac
Screenshots
Verdict
The clearest difference is in-app purchases: eYACHO Viewer 6 at none against Kouzaitap for iPad's 1. eYACHO Viewer 6 also leads on ads (none vs shown) and device support (3 vs 1). Kouzaitap for iPad's advantage is update cadence (every 2 weeks vs monthly). On price 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. Kouzaitap for iPad sells 1 in-app purchase, starting at $1.99 per month. eYACHO Viewer 6 asks for nothing beyond the download.
Kouzaitap for iPad ships an update every 2 weeks, eYACHO Viewer 6 monthly. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.
| Parameter | Kouzaitap for iPad | eYACHO Viewer 6 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.6 — better |
| Further details — not scored | ||
| Size | 26 MB | 276 MB |
| Age rating | 4+ | 17+ |
| Developer | TOGUCHI, CO., LTD. | MetaMoJi Corporation |
In-app purchases
Kouzaitap for iPad
- Hide ads$1.991 Month
eYACHO Viewer 6
No in-app purchases
Questions
Is Kouzaitap for iPad free?
Is eYACHO Viewer 6 free?
Do Kouzaitap for iPad or eYACHO Viewer 6 have ads?
Which is updated more often, Kouzaitap for iPad or eYACHO Viewer 6?
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