Apps Like Relativistic Calculator for iPhone and iPad
Calculate time dilation and altitude effects
Calculate time dilation effects using relativity principles. Input travel speed and compare aging between twins. Explore gravity's impact on time with altitude adjustments. Visualize effects through scenario examples.
Relativistic Calculator screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.


Plane Finder ⁃ Flight Tracker
pinkfroot limited
Track planes and view live air traffic
Track live air traffic with real-time updates on aircraft location, altitude, speed, and direction. Search for specific planes by identifier. View global paths and movement details. Receive instant notifications on status changes.



Smart Traveler
United States Department of State
Access travel advisories and embassy info
Access official country information, travel advisories, and U.S. embassy locations. Enroll in STEP for emergency assistance. View lost/stolen passport alerts and locate embassy contacts. Receive updates on natural disasters and security issues.

Solar System Sim
WPC
Explore planets, add new ones, simulate systems
Explore celestial bodies in the and nearby stars with detailed location data in the Milky Way. Modify or add celestial objects to create custom systems. Simulate gravity and physics to recalculate orbits based on Newton's laws.

RV LIFE - RV GPS & Campgrounds
Social Knowledge, LLC
Find , navigate roads, share adventures
Find and RV parks with detailed listings and user reviews. Navigate using GPS tailored for RVs. Share travel experiences and connect with other RVers. Access trip planning tools and safety tips for safe journeys.

First View
Firstgroup America Inc
Track student trips and plan your day
Track real-time vehicle locations and monitor progress. Manage multiple students' trips, including yellow school buses and alternative transportation. Receive updates on arrival and departure times. Set up notifications for specific events.

Out Of Office - OOO.
Out of Office, Inc
Find friends and get travel ideas
Receive personalized travel recommendations based on a short quiz. Connect with friends to invite contacts into your inner circle. Add travel recommendations to share with followers. Save travel ideas for future trips.


Unit Converter - Pro Units App
Tue Nguyen Minh
Convert , track rates, create lists
Convert across 16 categories including angle, area, cooking, currency, data, length, mileage, power, pressure, speed, temperature, time, volume, weight, men's shoe size, and women's shoe size. Create custom lists.

Barometer & Altimeter & Thermo
ExaMobile S.A.
Measure pressure and track altitude
Measure atmospheric pressure and altitude using built-in GPS and pressure sensor. Automatically calibrate readings with local meteorological station data. Display current pressure and elevation levels. Save historical data for reference.

GPS Data Smart
ExaMobile S.A.
Track altitude, speed, and location
Track altitude, elevation, and GPS coordinates. Monitor speed in km/h or mph. View compass direction. Check GPS signal quality. Log location for outdoor activities like running, mountaineering, or traveling.

World Uncovered
Roman Budzowski
Track trips, map locations, and record travel
Track travel routes with GPS data. View maps showing locations, speed, altitude, and visit frequency. Explore details about visited cities, countries, and landmarks. Compare travel patterns and revisit frequented spots.

Mult.dev Map Animations
Sergey Nikitin
Create animated videos from travel photos
Create animated travel videos using maps, routes, and photos. Import GPX, KML, or GeoJSON files. Add photos and location names. Choose transportation type. Export for Instagram Reels, TikTok, YouTube Shorts, and travel blogs.

Dreampass
Dreampass LLC
Track flight details and updates
Access booking details from ASAP Tickets, SkyLux, and Oojo. View real-time flight updates for departure and arrival times. Contact Concierge Service with one click. Subscribe to Plus for additional travel benefits.

Visited: Travel Tracker & Map
Arriving In High Heels
Track locations and map your travels
Track experiences by marking countries, states, regions, and cities. Create personal and regional maps for over 20 countries. Set goals for future destinations and update progress as you explore. Share maps and compare with others.

Altimeter - i
EONSOFT
Track altitude, max, and min elevation
Display current, maximum, and minimum altitude using GPS. Switch between meters, feet, and yards. Adjust scale increments of 10, 100, 1000, or 10000. Track altitude changes during hiking or travel.

GSRTC
Radiant Info Systems Ltd.
Book bus tickets and track your ride
Book bus tickets with real-time seat availability and fare comparisons. Select departure and arrival cities, choose buses, and make payments securely. Track bus location and receive notifications for delays or cancellations.

Pin Traveler: Track Travel Map
Pin Traveler LLC
Trips, plan adventures, share maps
Past trips by pinning cities, countries, or U.S. states. Search and add unlimited destinations for free. View color-coded maps with detailed location markers. Save notes and photos for each pinned place.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.