Rainbow's Arc Positioning app icon

Apps Like Rainbow's Arc Positioning for iPhone and iPad

by JERRY WAYNE SIMONEAUX★ 0.00 ratingsNavigation$2.99Data updated 2026-10-04

Rainbow's Arc Positioning screenshots

Ranked alternatives

Showing 101–120 of 1,000 ranked alternatives.

  1. Sailing Term app icon

    Sailing Term

    Orendasoft Ltd.

    Review terms and practice questions to learn

    Learn terminology through repeated dictionary entries. Practice with question-based quizzes to reinforce understanding. Track progress and review terms for better retention.

    ★ 4.682 ratingsEducationFreeData updated 2026-09-14
  2. StarTracker - Mobile SkyMap app icon

    StarTracker - Mobile SkyMap

    身吉 潘

    See stars, constellations, and planets.

    The app displays stars, constellations, and deep sky objects in real-time using the device's sensors. It includes over 8000 stars, 88 constellations, and 100+ deep sky objects with offline data and a time machine feature.

    ★ 4.7159 ratingsReference$2.99Data updated 2026-09-25
  1. Treble Cat Lite app icon

    Treble Cat Lite

    James Uhart

    Play notes, learn clef

    Learn musical notes in the clef through interactive gameplay. Identify notes by sound and visual cues. Track progress with quizzes and challenges. Sync with educational resources for practice.

    ★ 4.0106 ratingsGamesFreeData updated 2026-09-09
  2. Pumpout Nav app icon

    Pumpout Nav

    ecom enterprises, inc.

    Find marinas and view facilities

    Find marinas with detailed facility information. Locate nearby stations, floating restrooms, and dump stations. View real-time locations for mobile pumpouts. Switch between map and list views to check hours and other details.

    ★ 4.5116 ratingsNavigationFreeData updated 2026-09-11
  3. Ship's Log Book for Captains app icon

    Ship's Log Book for Captains

    Florian Kriesche

    Automated logbook for sailors and boaters.

    The app automatically creates logbook entries with weather and location data. Users can add pictures, measure heel, and view statistics.

    ★ 4.421 ratingsProductivityFreeData updated 2026-09-29
  4. Sun and Moon Position app icon

    Sun and Moon Position

    shebli geegieh

    Track sun and positions

    Calculates sun and positions with 0.3% accuracy. Determines sunrise and sunset times. Provides moonrise and moonset times. Adjusts for elevation and time zone.

    ★ 4.365 ratingsUtilitiesFreeData updated 2026-09-14
  5. Tomstrails GPS Duo app icon

    Tomstrails GPS Duo

    John Spinks

    Map coordinates displayed worldwide clearly.

    The app displays map coordinates in multiple grid formats including British Grid, Irish Grid, MGRS, and UTM. It also shows Latitude & Longitude in decimal and sexagesimal notation for global use.

    ★ 4.6145 ratingsNavigationFreeData updated 2026-09-18
  6. Marine Navigation-USA Lake Map app icon

    Marine Navigation-USA Lake Map

    Bist LLC

    Navigate with voice prompts and route manager

    Access vector charts, freshwater maps, and USACE river maps. Create or import routes using GPX/KML. Receive voice prompts for navigation. View tide and current predictions. Rotate charts with text remaining upright.

    ★ 4.219 ratingsNavigation$29.99Data updated 2026-09-26
  7. RX - Radiographic Positioning app icon

    RX - Radiographic Positioning

    Fabricio Tarter

    Study radiology positions and patient setups

    Learn radiological techniques for different body parts. View patient examples and radiograph visuals. Explore technical factors like chassis, focus film, and director ray. Access QA guidelines and utility notes for study.

    ★ 4.669 ratingsMedicalFreeData updated 2026-10-05
  8. John Cominio RPN Calculator app icon

    John Cominio RPN Calculator

    John Cominio

    Calculate using RPN notation and scientific functions

    Scientific with reverse polish notation. Perform square root, reciprocal, trigonometric functions, hyperbolic functions, and logarithms. Switch between degrees, radians, and gradians. Calculate factorials, exponents, and nth roots.

    ★ 4.99 ratingsProductivityFreeData updated 2026-09-08
  9. Sight Words Bingo app icon

    Sight Words Bingo

    Horizon Business, Inc.

    Play , track progress, customize settings

    Learn through interactive gameplay. Choose word sets and backgrounds in settings. Track progress through leveled word sets. Play against family members or friends. Share high scores and achievements.

    ★ 4.092 ratingsEducationFreeData updated 2026-09-08

How we rank alternatives

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