| Core Identity |
| Developer | Sakhalin | Garmin | Orca Technologies AS | FB Imray Laurie Norie & Wilson GmbH | Nobeltec, Inc. | PredictWind Limited | NEBO GLOBAL PTY LTD | SailTimer Inc. | Scott Bender | Calculated Industries |
| Category | Navigation | Navigation | Navigation | Navigation | Navigation | Weather | Navigation | Navigation | Navigation | Reference |
| Platform | iOS | Android, iOS | Android, iOS | iOS, Android | iOS | iOS | iOS, Android | iOS, Android | iOS | iOS |
| Store Metrics |
| Rating | 4.7 / 5 | 2.9 / 5 | 4.5 / 5 | 1.0 / 5 | 4.7 / 5 | 4.4 / 5 | 4.1 / 5 | 1.8 / 5 | 4.5 / 5 | 4.8 / 5 |
| Ratings Count | 497 | 2,248 | 265 | 7 | 809 | 208 | 34 | 5 | 27 | 382 |
| Price | Free | Free | Free | Free | Free | Free | Free | Free | $19.99 | $3.99 |
| Release Date | Jun 1, 2012 | Jan 2, 2014 | May 6, 2021 | May 19, 2017 | Jan 2, 2018 | Dec 21, 2023 | Aug 24, 2017 | Sep 9, 2009 | Oct 4, 2016 | Aug 29, 2009 |
| Last Updated | Feb 19, 2026 | Apr 27, 2026 | Apr 16, 2026 | Apr 29, 2026 | Jan 29, 2026 | Feb 2, 2026 | May 7, 2026 | Dec 23, 2025 | Mar 18, 2026 | Dec 7, 2021 |
| Sentiment & Reviews |
| Sentiment | - | terrible | negative | - | positive | terrible | mixed | negative | excellent | excellent |
| Score | - | 15/100 | 25/100 | - | 82/100 | 20/100 | 45/100 | 35/100 | 85/100 | 90/100 |
| Praises | - | - Detailed depth contours and coastal mapping provide reliable navigation for small craft in shallow waters
| - Integrated marine hardware connectivity provides a comprehensive navigation solution for boaters
| - | - Advanced marine navigation features provide a reliable alternative to dedicated chartplotter hardware for sailors
| - Detailed hour-by-hour current data provides high value for local maritime navigation and paddling
| - Automatic voyage logging and map visualization provide significant value for long-distance boating enthusiasts
| - Advanced tactical sailing features provide detailed performance data for active racing enthusiasts
| - Responsive developer support builds long-term trust with the marine enthusiast user base
| - Navigation rules reference material provides essential study support for maritime certification exams
|
| Complaints | - | - Subscription model aggressively wipes access to previously purchased charts and offline data after expiration
- Subscription loop bugs prevent users from accessing paid content despite active payment status
| - Inaccurate auto-routing and chart data failures create dangerous navigation conditions for users
| - | - Inaccurate map data in specific coastal regions creates safety concerns for users navigating shallow waters
| - Aggressive paywalling of core features prevents users from evaluating the app before subscribing
| - Frequent application crashes and freezing behavior disrupt tracking reliability during active boating sessions
| - Inconsistent map loading and chart availability frustrate users during active navigation sessions
- Aggressive monetization and paywalls for core features alienate potential long-term users
| - Inconsistent user interface design makes navigation difficult once users enter specific map views
| - Lack of interactive testing features limits the utility of the app for self-assessment
|
| Requests | - | - Integration of AIS and Loran data to improve situational awareness for offshore navigation
| - | - | - Automated route generation tools would reduce the manual effort currently required for planning long voyages
| - | - Improved offline reliability for voyage logging when operating in areas with limited cellular service
| - Manual coordinate entry functionality is required for precise navigation and waypoint management
| - Direct integration with local mobile device GPS for navigation when boat hardware is absent
| - Interactive knowledge assessment tools would improve the effectiveness of the study experience
|
| Strategic Intel |
| Strengths | - NMEA and AIS hardware integration creates high switching costs for professional users
- IHO S-100 series compliance secures a defensible position in the professional pilot segment
| - Global chart coverage [Market]
- Hardware-software lock-in via Plotter Sync [Ecosystem]
- Crowdsourced ActiveCaptain data [Network Effect]
| - Hardware-gated integration creates high switching costs for power-user segments
- Modern UI design reduces cognitive load compared to legacy chartplotters
| - | - Professional-grade bathymetric data provides high-fidelity navigation
- Cloud-based route synchronization across devices
- Participative community map updates
| - 100m-resolution tidal maps enable professional-grade navigation
- PredictWind oceanographic heritage builds professional trust
- Integrated wind-against-current alerts provide safety-critical utility
| - Automated voyage logging reduces manual entry friction
- Community chat features foster local harbor network effects
| - Proprietary tacking algorithm functions as a brand moat for racing segments
- Hardware-software bundle strategy drives B2B revenue via proprietary sensor sales
| - Signal K protocol integration creates high switching costs
- Template-sharing mechanism drives organic referral loops
- Responsive developer support fosters long-term user loyalty
| - Regulatory compliance status functions as a brand moat for professional mariners
- Offline-first architecture ensures utility in remote maritime environments
|
| Weaknesses | - Lack of automated route planning forces manual workflows
- Time-gated trial limits top-of-funnel conversion compared to ad-supported rivals
| - $49.99/year subscription barrier [Pricing]
- Subscription-loop bugs [Technical]
- 2.8★ rating [Sentiment]
| - 3.93 rating on Android indicates stability issues
- Hardware-gating core navigation features drives high churn among mobile-only users
| - | - Manual routing increases voyage planning time
- Depth data inaccuracies in shallow waters
- Poor depth number readability
| - Premium tier at $99/year above category median
- Mandatory account creation creates high-friction onboarding
- Technical instability prevents basic location recognition
| - High crash frequency during tracking sessions
- Subscription-gated historical data triggers user churn
- Excessive battery drain in background mode
| - 1.8-star iOS rating reflects critical technical instability
- Aggressive paywalls for basic navigation drive high churn
| - Unintuitive map navigation interface
- Missing NMEA wind data parsing
- No free trial for hardware testing
| - Static manual format lacks interactive self-assessment
- No feature updates beyond maintenance-mode bug fixes
- Paid tier lacks recurring value of subscription-based competitors
|
| Pricing | freemium | subscription | freemium | subscription | freemium | freemium | freemium | freemium | paid | paid |
| Momentum | Maintenance | Maintenance | Intense | Intense | Maintenance | Maintenance | Maintenance | Maintenance | Active | Zombie |
| Update Cadence | 1 versions | 5 versions, ~45d avg | 5 versions | 5 versions | 5 versions, 3 majors/6mo, ~48d avg | 1 versions | 5 versions, 1 majors/6mo, ~20d avg | 2 versions, 2 majors/6mo, ~85d avg | 5 versions | 5 versions |
