Purpose-Built
A local marine-log bench for parsing NMEA sentences, checking checksums, plotting position records, and reviewing talker and message coverage.
One-time iPhone and iPad app
Sentencewake
NMEA 0183 log analysis
Core Tools
- NMEA sentence and checksum inspection
- Track plots and message evidence
- Forty bundled marine-data plates
Private by Design
No account, ads, tracking, third-party analytics, or developer-operated backend. Your work stays on your device unless you deliberately share or export it.
Use It Responsibly
The app is a log-analysis aid, not a primary navigation instrument. Use approved navigation equipment and current official information underway.