AirDiffuser vs PipeChecker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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.
PipeChecker
This tool assists HVAC, sanitary, and plant piping engineers in selecting optimal pressure piping sizes with simple operations. It streamlines the design process for piping equipment technicians.
- Optimal pressure pipe sizing
- Simplified operation
- For piping equipment technicians
- Supports HVAC, sanitary, and plant systems
Read full descriptionHide full description
このプログラムは、空調・衛生・プラント等の配管設備技術者のためのツールです。簡単な操作で最適な配管(圧力配管)サイズを選択できます。
Screenshots
Verdict
The clearest difference is update cadence: PipeChecker at every 4 months against AirDiffuser's every 60 months. AirDiffuser's advantage is price ($2.99 vs $7.99) and iOS requirement (9.0 vs 15.0). On ads, in-app purchases, monetization model 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
AirDiffuser costs $2.99 and PipeChecker $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AirDiffuser ships an update every 60 months, PipeChecker every 4 months. The most recent releases landed on September 28, 2026 and October 8, 2026 respectively.
| Parameter | AirDiffuser | PipeChecker |
|---|---|---|
| Price | $2.99 — better | $7.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 60 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Technical Data Service Co.,Ltd. | AIR DESIGN, INC. |
Customer experience
AirDiffuser
PipeChecker
In-app purchases
AirDiffuser
No in-app purchases
PipeChecker
No in-app purchases
