Comparison

AirDiffuser vs 建築設備簡易計算アプリ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AirDiffuser

Quickly select air ceiling diffusers for HVAC systems. Input wind amount to calculate apparatus size and wind velocity. Supports various diffuser types and customizable settings for site and meeting use.

Highlights
  • Easy apparatus size selection by wind amount input
  • Supports various diffuser types (Round, Square, BL, CL, etc.)
  • Adjustable aperture rate and wind velocity
  • Reverse calculation of wind amount
  • Metric system calculations
  • Calculations for BL and CL round length
Features
Read full description

'AirDiffuser' is an application program that can select air ceiling diffuser in air conditioning facilities quickly, and easily. It is an easy operation only of the choice of the apparatus to be examined from the list, the input of the amount of the wind, and doing the calculation button the tap. It is possible to calculate to examine the velocity of the wind to select the size of apparatus and to examine the amount of the wind. Please use it for the reference when air ceiling diffuser is selected when the blueprint and the working drawing, etc. are made. It is possible to take an active part by various scenes like the site and meeting, etc. [Feature] - The size of apparatus can be easily selected only by inputting the amount of the wind and pushing the calculation button. - It corresponds to various apparatuses. (Round Diffuser,Square Diffuser,BL,CL,VHS,HS,OAG,EAG,Smoke Damper) - The aperture rate of default can be changed to an arbitrary aperture rate. - The velocity of the wind of default can be changed to an arbitrary velocity of the wind. - The velocity of the wind can be examined by fixing by an arbitrary size of apparatus. - The amount of the wind can be reversely calculated by fixing an arbitrary size of apparatus and the velocity of the wind. - When size L is selected, BL and CL round length and are computable. - This application is calculated by metric system. - Please see the support site in detail.

About

建築設備簡易計算アプリ

Features
Read full description

建築設備の「ちょっとした計算」を、iPhoneひとつで。 空調・衛生・電気・騒音の実務計算をまとめた、設備設計者のための計算アプリです。 打ち合わせ中や現場で、電卓やExcelを開かずにその場で答えが出せます。 ■ 主な計算メニュー 【空調】ダクトサイズ/換気/ガラリ/全熱交換器/熱負荷/AHU選定/空気線図(湿り空気線図) 【衛生】給水管径+流速/給水管径(管均等表)/排水管径(負荷単位法)/給水負荷・同時使用率/受水槽・高置水槽の容量/受水槽サイズ 【電気】照明計算(ルーメン法)/幹線サイズ(電圧降下) 【騒音】騒音レベルの合成・距離減衰/単位変換(オクターブバンド) + 単位変換/電卓 ■ 新機能 ・受水槽・高置水槽の容量計算:用途別の使用水量原単位から、1日使用水量・時間平均/時間最大/瞬時最大の予想給水量・受水槽/高置水槽の有効容量・揚水ポンプ揚水量まで算出 ・受水槽サイズの計算:有効容量と気層部の高さから有効水深・必要底面積を求め、もう1辺を500mm刻みで算出。3辺の寸法・実際の有効容量・六面点検スペースまで確認できます ・給水の計算がひと続きに:給水負荷単位 → 受水槽容量 → 受水槽サイズ/揚水管径 と、値を引き継いだまま次の計算へ ・空調も同様に引き継ぎ対応(換気→ダクト/ガラリ/AHU、熱負荷→AHU) ■ こだわり ・計算式・使用した係数を表示。安心して実務に使えます ・空気線図は指でプロット。絶対湿度・エンタルピーも自動表示 ・ダクトやガラリは2方向(風量⇄サイズ)で計算できます ・ライト/ダークモードに対応 ■ 無料でできること 主要な計算はすべて無料。計算式・根拠の表示、妥当域チェックも無料です。 ■ プレミアム(3日間無料お試し) ・履歴保存/PDF・CSV計算書/空気線図の画像(PNG)保存 ・計算値テンプレート/比較計算モード/妥当域しきい値の調整 ご要望・不具合のご報告はいつでもお待ちしています。

Screenshots

AirDiffuser4 screens
建築設備簡易計算アプリ4 screens

Verdict

The call

The clearest difference is price: 建築設備簡易計算アプリ at Free against AirDiffuser's $2.99. 建築設備簡易計算アプリ also leads on update cadence (every 2 weeks vs every 60 months). AirDiffuser's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 18.2). On ads 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

CostPrice · In-app purchases · Ads · Monetization

建築設備簡易計算アプリ is free to download; AirDiffuser costs $2.99 up front. 建築設備簡易計算アプリ sells 2 one-off in-app purchases. AirDiffuser asks for nothing beyond the download.

UpkeepUpdate frequency

AirDiffuser ships an update every 60 months, 建築設備簡易計算アプリ every 2 weeks. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
AirDiffuser versus 建築設備簡易計算アプリ: the parameters behind the verdict, then further details
ParameterAirDiffuser建築設備簡易計算アプリ
Price$2.99Free — better
Rating1.0 (1 ratings) — better—
Positive reviews—33.3% of reviews
Number of ratings1 — better—
Update frequencyEvery 60 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better18.2
Further details — not scored
Size4 MB9 MB
Age rating4+4+
DeveloperTechnical Data Service Co.,Ltd.koichi hashimoto

Customer experience

AirDiffuser

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

建築設備簡易計算アプリ

Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

AirDiffuser

No in-app purchases

2 purchases

建築設備簡易計算アプリ

One-time2
  • 広告を非表示にする$2.99
  • プレミアム機能(広告削除含む)$5.99

Questions

Is AirDiffuser free?
AirDiffuser costs $2.99, with no in-app purchases.
Is 建築設備簡易計算アプリ free?
建築設備簡易計算アプリ is free to download, with in-app purchases available.
Do AirDiffuser or 建築設備簡易計算アプリ have ads?
Neither AirDiffuser nor 建築設備簡易計算アプリ shows ads.
Which is updated more often, AirDiffuser or 建築設備簡易計算アプリ?
AirDiffuser ships an update every 60 months, and 建築設備簡易計算アプリ every 2 weeks. Most recently, AirDiffuser was updated on September 28, 2026 and 建築設備簡易計算アプリ on October 6, 2026.

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