DuctChecker vs DUCTable
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DuctChecker
Easily calculate duct dimensions using various engineering methods like constant pressure, static pressure regain, total pressure, and velocity. This tool simplifies complex duct design calculations, typically found in flow diagrams or slide rules.
- Constant pressure method calculation
- Static pressure regain method
- Total pressure method
- Velocity method
- Duct dimension determination
- Simplified duct design
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To determine the size of the duct constant pressure method, static pressure regain method, total pressure method, velocity method. Generally uses constant pressure method. This constant pressure method is how to determine the duct dimensions using the same value per 1 m on all duct friction loss. Usually determined by flow diagrams or duct design for slide rules. You can easily determine the duct by using this program.
DUCTable
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このアプリケーションは、建築設備のダクトを選定するための計算尺です。 風量や単位摩擦抵抗から、適切なダクトサイズを選定することができます。 カーソルを複数設け、単独で動かせる機能を持たせることで、 計算尺ならではのエンジニアリングが容易になりました。 使い方等は以下サイトでご確認ください。 https://www.snk.co.jp/service/technology/search/?pdid=404
Screenshots
Verdict
The clearest difference is price: DUCTable at Free against DuctChecker's $6.99. DUCTable also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). On ads, 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
DUCTable is free to download; DuctChecker costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
DuctChecker ships an update every 4 months, DUCTable every 3 weeks. The most recent releases landed on September 7, 2026 and September 19, 2026 respectively.
| Parameter | DuctChecker | DUCTable |
|---|---|---|
| Price | $6.99 | Free — better |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | AIR DESIGN, INC. | SHIN NIPPON AIR TECHNOLOGIES CO.,LTD. |
In-app purchases
DuctChecker
No in-app purchases
DUCTable
No in-app purchases
