Showing 101–120 of 1,000 ranked alternatives.
iLanga, Inc.
Visualize celestial views through eyepieces
Helps users visualize celestial objects through telescopes or cameras. It calculates magnification, actual field of view, and exit pupil. Users can simulate views with different eyepieces and optical aids.
World Radio League Inc.
Log contacts and sync logbooks
Log contacts and manage amateur logs directly on mobile. Sync data between and website. View logging stats and awards. Track active operators and monitor QSOs in real time. Support for iOS, iPadOS, and Apple Silicon.
Andrey Kiselev
Track speed and location in real time
Track speed using GPS for driving, cycling, motorcycles, and flying. Monitor speed in both landscape and portrait modes. Share maximum speed and GPS coordinates with friends. Use the on-board computer feature for real-time data.
Little Giving
Calculate prayer times and astronomical data
Calculate prayer times and astronomical data for Muslims. Track anti-transit, sunrise, sunset, and other celestial events. Display times for Fajr, Zuhr, 'Asr, Maghrib, and 'Isha. Include shar'i night calculations and planetary positions.
Antony Chazapis
Share real-time position data
Allows users to send and receive APRS packets for real-time position and status reporting. It includes a software TNC for encoding and transmitting data. Users can visualize packet traffic and manage amateur radio communications.
American Museum of Natural History
Explore exhibits with interactive maps and directions
Explore museum exhibits with a customizable map and turn-by-turn directions. Receive recommendations for exhibits and amenities. Access location-based information and navigate accessible routes. Available in English, Spanish, French, and Portuguese.
Tigran Mkhitaryan
Navigate with -grade GPS tools
Navigation provides GPS tracking, map navigation, and route planning. Includes tools, field manuals, and live conflict updates. Users can access guides, track locations, and receive real-time news.
Bhavik Savaliya
View maps and 3D street scenes worldwide
View street maps and satellite imagery to identify locations worldwide. Check traffic conditions and update maps in real time. Find nearby points of interest and navigate to destinations with accurate directions.
ONYX 3
Analyze ticking sounds and track clock rate
Analyzes the ticking sound of mechanical pendulum clocks to determine their running rate in Beats Per Hour. It compares this rate to a target and reports the error in Seconds Per Day. Users can adjust settings and view detailed timing data.
Phan Nhat Đang
Calculate goals, track growth, view charts
Calculate investment growth with year-by-year simulations and final result projections. Determine time needed to reach goals and required annual contributions. Compute simple interest. Store results and view detailed charts for analysis.
Sergey Vanichkin
Train and send code messages
Learn and practice code with modes for beginners and professionals. Practice listening comprehension and alphabet character recognition. Create text archives for classroom dictation exercises. Transmit LED-coded messages for encrypted communication.
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