236+ iOS apps curated and reviewed
The best navigation rules pro apps on iPhone average 4.3★ across 236+ 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 |  | $4.99 | 4.8★ (442) | No | No | Aug 2026 | |
| 2 |  | $3.99 | 4.8★ (386) | No | No | Sep 2026 | |
| 3 |  | Free | 5.0★ (4) | No | No | Jul 2026 | |
| 4 |  | $2.99 | 4.3★ (6) | No | No | Aug 2026 | |
| 5 |  | Free | 5.0★ (5) | No | Yes | Aug 2026 | |
| 6 |  | $15.99 | 3.8★ (18) | No | No | Sep 2026 | |
| 7 |  | Free | — | No | Yes | Aug 2026 | |
| 8 |  | Free was $4.99 | 5.0★ (13) | No | No | Sep 2026 |
This app provides comprehensive boating regulations and reference materials, including international and inland navigation rules, sound and light signals, and communication information. It features quick references, calculators, and unit conversions for boaters.
Access the complete International Regulations for Preventing Collisions at Sea (COLREGs) and Inland Navigation Rules. This app provides a searchable, annotated version of boating regulations, ideal for quick reference and sharing information.
Master USCG Navigation Rules with a comprehensive question bank and smart study features. Track your progress, practice for exams, and study offline to navigate with confidence.
