Seafarer Job Wizard
JIWON SEO Navigation iPhoneiPadiPod touch
Seafarer Job Wizard is a free Navigation app for iPhone and iPad by JIWON SEO. Requires iOS 15.5. Updated October 9, 2026.
- Price
- Free
- on the App Store
- Size
- 118 MB
- Age 17+
- Updated
- Oct 9
- 2026 · v1.0.2
Screenshots
About Seafarer Job Wizard
The calculations a watchkeeping officer actually runs, in one app. Everything is computed on the device, so it keeps working in the middle of an ocean with no link. NAVIGATION CALCULATORS — 14 · Squat & UKC — table method plus height of tide. Load your own company squat table from CSV. · Gyro Error (Sun, stars, planets) — true bearing vs gyro bearing, with a polar star finder over the 57 navigational stars plus Polaris. · Compass Error — Sun — sunrise/sunset times, the Sun's true bearing, gyro error, compass error, variation (WMM2025) and deviation in one flow. · Deviation / Variation — the CDMVT chain, with the WMM2025 magnetic model built in. · Amplitude and Rise & Set · Sun Sighting (LOP) — sextant altitude to Ho/Hc to intercept and line of position, with running fix. · Great Circle Sailing — distance, initial course, vertex and latitude at a given longitude. · True Wind, ETA, Bunker Calculation · Tank Calibration (Sounding) — interpolates your calibration table and refuses to extrapolate beyond it. · Watchkeeping Tools — round timer plus a night navigation-light identification quick reference. · Anchor Holding Power — Pro Pack Drag the list into the order you work in, and reset it any time. FILL IN FROM A PHOTO — ON-DEVICE TEXT RECOGNITION Read ship's particulars, deviation cards, sounding tables and observation logs from the camera or your photo library straight into the input fields. Recognition runs entirely on the device and the images are never transmitted. SEAMEN'S CLUB DIRECTORY — OFFLINE 541 clubs across 391 ports in 71 countries. Search services, shuttles and phone numbers with no connection and dial straight from the entry. Favourites, notes and your own added entries stay on the device. SHIP PROFILES Keep particulars, tank calibration tables, deviation cards and your custom squat grid per vessel and recall them on demand. LOGBOOK Squat & UKC calculation history and the gyro observation worksheet are saved on the device and export as text. COMMUNITY — OPTIONAL A document market and board for exchanging material with other officers. Browse and take part without signing in. PRO PACK — ONE-TIME Unlocks the Anchor Holding Power calculator and the offline translator. Not a subscription; once unlocked it keeps working offline. 30 languages. Note — this is a navigation aid for reference only. Verify every result against official nautical publications, ENC/charts and your company's procedures before use. Navigational decisions remain the navigator's responsibility.
What’s new
Version 1.0.2 · Updated October 9, 2026
• Squat & UKC: the ship-particulars grid is two columns on phones, so labels, units and values are never cut off — also with large system fonts. • Tab titles no longer truncate on narrow screens; landscape mode leaves more room for content. • Compass Error — Sun now starts with today's local ship date. • Korean: the "Seamen's Club" tab is now "선원 클럽".
App privacy
The developer, JIWON SEO, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Contact Info: Email Address, Name
- User Content: Photos or Videos, Other User Content
- Identifiers: User ID
- Usage Data: Product Interaction
- Other Data: Other Data Types
Used for: App Functionality
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