A handy reference guide for mechanical designers, offering quick access to essential information on fan basics, system and duct design, motors, heating, refrigeration, and conversion factors.
Engineering Cookbook by Loren Cook Company




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The best engineering cookbook apps on iPhone average 3.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.5★ (6) | No | No | May 2026 | ||
| 2 | Free | — | No | Yes | May 2026 | ||
| 3 | Free | — | No | No | May 2026 | ||
| 4 | Free | 3.0★ (1) | No | Yes | May 2026 | ||
| 5 | $2.99 was $9.99 | — | No | No | Sep 2026 | ||
| 6 | Free | 3.0★ (1) | No | No | Sep 2026 | ||
| 7 | Free | — | No | Yes | May 2026 | ||
| 8 | Free | — | No | No | May 2026 |




A handy reference guide for mechanical designers, offering quick access to essential information on fan basics, system and duct design, motors, heating, refrigeration, and conversion factors.










