Comparison
NauticCalc vs Navionics
Two strong tools — different jobs: NauticCalc for course, variation and logbook offline; Navionics for charts and routing.
Calculator or chart app?
Many skippers use both — but the question "Which app is enough?" often leads to misunderstandings. Navionics is primarily a chart and routing solution. NauticCalc focuses on nautical calculators and logbook without replacing charts.
Quick comparison
- ·Navionics: charts, routing, plotter features — strong for planning on the chart
- ·Navionics: typically subscription model, internet for many live features
- ·NauticCalc: rwK/mwK/MgK, tidal set, variation (WMM2025) — offline on iPhone
- ·NauticCalc: logbook, export, deviation table — local on device
- ·NauticCalc: not a replacement for Navionics charts — no routing like a plotter
- ·Sensible together: chart app for the track line, NauticCalc for course work and log
Comparison table
| marketingPages.common.comparisonFeatureColumn | marketingPages.common.comparisonNauticcalcColumn | Navionics |
|---|---|---|
| Main focus | Calculators & logbook | Charts & routing |
| Offline course calculator (rwK/mwK/MgK) | Yes, without network | Not the core focus |
| Logbook & export | Local on iPhone | Not comparable / not a focus |
| Variation (WMM) | WMM2025, offline | Via chart context, no dedicated calculator |
| Deviation table | Vessel-specific, local | No |
| Subscription model | One-time purchase core app | Typically subscription / in-app |
| Routing / plotter | No | Yes — core feature |
| Official charts | No (aid) | Digital chart products |
Offline on the bridge
NauticCalc core calculators and logbook run without network. Chart apps often need a download or connection depending on use — check your setup before you sail.
Fair comparison
We don't sell charts and don't replace Navionics. NauticCalc is the tool when you want to calculate offline, tabulate deviation and document.
Frequently asked questions
No. Navionics covers charts and routing. NauticCalc covers calculators, course chain and logbook — complementary, not identical.
Many skippers yes: a chart app for the track line, NauticCalc for variation, course correction and logbook. Your workflow decides.
No — by design. Focus on calculations and logbook. Charts and AIS remain with official sources or chart apps.
NauticCalc: offline stations where available, otherwise WorldTides via BYOK. Navionics bundles other live services — check with each provider.
Related topics
Try course & logbook offline
App Store · May 2026
