This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.




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Every iPhone needs a few good gas pipe sizing plumb apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $0.99 | — | Yes | Yes | Jul 2026 | ||
| 2 | Free | — | No | No | Sep 2026 | ||
| 3 | $1.99 | 4.0★ (4) | No | No | Sep 2026 | ||
| 4 | $6.99 | 5.0★ (1) | No | No | Aug 2026 | ||
| 5 | $4.99 | 4.0★ (1) | No | No | Jul 2026 | ||
| 6 | Free | 3.2★ (13) | Yes | No | May 2026 | ||
| 7 | $3.99 | 4.0★ (4) | No | No | Aug 2026 | ||
| 8 | Free | 5.0★ (1) | No | No | May 2026 |










This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.