Percival app icon

Apps Like Percival for iPhone and iPad

by SIMON DAVID ROBINSON★ 0.00 ratingsNavigationFreeData updated 2026-09-06

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Nautical Nomograph app icon

    Nautical Nomograph

    Universal Queue LLC

    Calculate time, speed, and distance

    Calculate time, speed, and distance with interactive charts. Input variables to solve equations. Convert units and view results instantly. Share solutions and save calculation history. Sync with charts for accurate route planning.

    ★ 5.05 ratingsNavigation$4.99Data updated 2026-10-17
  2. Ships Bell Clock & Duty Bells app icon

    Ships Bell Clock & Duty Bells

    Alchemic Apps LLC

    Ring chimes on demand

    Track time with a ship's chime that cycles every four hours. Set specific watches for patterns. Mute based on location or selected watches. Play Reveille, Retreat, and Taps sounds as needed. Sync chimes across compatible iOS devices.

    ★ 4.4411 ratingsUtilitiesFreeData updated 2026-09-08
  1. Marinus: maritime rules app icon

    Marinus: maritime rules

    Alejandro Martinez de Carvajal

    Search navigation instantly anywhere

    COLREGs offers flag identification, weather scales, cloud recognition, sound signal guidance, and vessel light details. Users can access navigation , interpret flags, and understand sound and light signals for safe boating.

    ★ 4.4214 ratingsEducationFreeData updated 2026-09-08
  2. Five Bells app icon

    Five Bells

    Mark Gould

    Ring to mark time and shifts

    Track time with traditional or simplified bell sequences. Set hourly bell strikes or schedule quiet periods. Configure bell sounds and manage alerts for watch changes. Sync with other devices for consistent timing.

    ★ 4.7214 ratingsUtilitiesFreeData updated 2026-09-06
  3. FishAngler: Fishing App app icon

    FishAngler: Fishing App

    FishAngler, LLC

    Plan trips, track , log catches

    Fishing maps show verified catch locations, boat ramps, and underwater structures. Users can mark and manage private waypoints. Track fishing trips, log catches, and access real-time weather and tide forecasts.

    ★ 4.813,789 ratingsSportsFreeData updated 2026-09-10
  4. NOAA Marine Forecast: Buoycast app icon

    NOAA Marine Forecast: Buoycast

    Skipjack Studios, LLC

    View real-time buoy data and alerts

    View real-time buoy observations from 800+ NDBC buoys. Check forecasts for over 300 zones. Access tide predictions and current hourly forecasts. Save favorite buoys and locate the nearest one. Sync data across all devices.

    ★ 4.613,621 ratingsWeatherFreeData updated 2026-09-12
  5. Fishing Spots: Find & Fish App app icon

    Fishing Spots: Find & Fish App

    FishAngler, LLC

    Find and track your trips

    Find with interactive and depth charts. Check forecasts and track catches. Save locations and view detailed water information. Share catches and locations with other anglers. Set alerts for weather and tide changes.

    ★ 4.710,948 ratingsSportsFreeData updated 2026-09-08
  6. Travel Route: 3D Map & Plan app icon

    Travel Route: 3D Map & Plan

    SMART WIDGET LABS COMPANY LIMITED

    Routes and visualize journeys on 3D maps

    Routes by entering start and destination points. Add waypoints by dragging on the map. Choose 3D transport modes. Create 3D videos of journeys. Customize routes with various transport options including car, bus, plane, bike, and sailboat.

    ★ 4.1300 ratingsTravelFreeData updated 2026-09-06
  7. Emoncms app icon

    Emoncms

    Megni

    View dashboards from servers

    View energy usage data from dashboards. Monitor electricity, temperature, and environmental metrics. Visualize logs and trends. Connect to servers for real-time updates and historical analysis.

    ★ 4.45 ratingsUtilitiesFreeData updated 2026-09-11
  8. iNavX: Marine Navigation app icon

    iNavX: Marine Navigation

    NavX Studios LLC

    Navigate with real-time charts and weather data

    Access charts, maps, weather data, and AIS information. Navigate with worldwide chart coverage from multiple providers. View real-time weather and track vessel position. Set waypoints and measure distances between points.

    ★ 4.821,649 ratingsNavigationFreeData updated 2026-09-08
  9. iTacTic app icon

    iTacTic

    3B Soft srls

    Track race routes and export GPS data

    Configure sailboat performance settings from 2-20kn and set start line, wind direction, and intensity. Track real-time GPS data during races and record performance continuously in the background.

    ★ 3.56 ratingsSportsFreeData updated 2026-09-08

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.