Mark Time app icon

Apps Like Mark Time for iPhone and iPad

by Sarah Reichelt★ 5.03 ratingsNavigationFreeData updated 2026-09-06
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Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  2. Celestial Navigator app icon

    Celestial Navigator

    Omar reis

    Calculate positions, track objects, plot lines

    Navigation provides perpetual almanac and star finder chart with animation. Calculates lines of position, object data, and meridian passage. Supports running fixes and astronomical position calculations with multiple star observations.

    ★ 3.25 ratingsNavigationFreeData updated 2026-09-08
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  3. Spyglass app icon

    Spyglass

    Pavel Ahafonau

    Track routes, find waypoints, and navigate offline

    Navigate outdoors with offline GPS maps and real-time augmented reality. Track waypoints and custom locations. Use a gyrocompass, speedometer, altimeter, and inclinometer. Find celestial bodies and measure angles.

    ★ 4.73,867 ratingsNavigationFreeData updated 2026-09-08
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  7. GPS Anti Spoof Pro app icon

    GPS Anti Spoof Pro

    Frank Reed

    Compare celestial altitudes and track live data

    Compare observed celestial altitudes with live calculated values for precise navigation. Tap to pause and receive instant feedback. Access data for the Sun, Moon, Venus, Mars, Jupiter, Saturn, 57 navigational stars, and Polaris.

    ★ 5.07 ratingsNavigation$19.99Data updated 2026-09-06
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  14. Travel Altimeter & Elevation app icon

    Travel Altimeter & Elevation

    BranchenKing Ltd.

    Track altitude changes with a barometer

    Track changes using a barometer and set reference pressure and altitude. View real-time altitude and adjust landscapes based on time of day. Use compass for orientation during hiking and outdoor activities. Compare differences between two points.

    ★ 4.643,435 ratingsNavigationFreeData updated 2026-09-08
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  15. Compass Direction - Digital app icon

    Compass Direction - Digital

    Rihab Mehboob

    Navigate with real-time GPS map

    View real-time GPS maps and switch between map and views by holding the device. Track heading, , altitude, latitude, longitude, speed, and temperature. Use a for accurate navigation and monitor speedometer and temperature readings.

    ★ 4.72,576 ratingsNavigationFreeData updated 2026-09-06
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  16. AtomicClock: NTP Time app icon

    AtomicClock: NTP Time

    Timo Partl

    Get exact and sync clocks

    Display current in correct format with analog clock and adjustable zones. Choose from multiple NTP servers or add custom ones. Switch between local and UTC , 12-hour and 24-hour formats.

    ★ 4.85,228 ratingsUtilitiesFreeData updated 2026-09-06
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  17. Local Sidereal Time app icon

    Local Sidereal Time

    Scott Spiller

    Track celestial objects

    Calculate based on location and date. Display current in hours and minutes. Help users align telescopes with celestial coordinates. Track changes throughout the year. Provide reference for astronomical observations.

    ★ 4.71,049 ratingsUtilitiesFreeData updated 2026-09-06
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How we rank alternatives

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