Apps Like Citizen Science for iPhone and iPad
Citizen Science screenshots
Ranked alternatives
Showing 121–140 of 1,000 ranked alternatives.

Examen de Ciudadanía de EE UU*
Nuray Karabag
Study citizenship questions and answers
Study for the US citizenship exam with official questions and detailed explanations. Access state-specific content and use flashcards for memorization. Prepare for the interview with practice tests and alternative answer options.


US Citizenship Test 2025 Plus+
Nuray Karabag
Study official questions and track progress
Study for the US with official questions and answers. Practice with tests that provide instant feedback. Use interactive flashcards with audio pronunciation. Save important questions for review. Track progress with visual indicators.



Merge HoloGlobe
Merge
Explore Earth's data in 3D
Explore real-time satellite data and simulations of Earth's systems using a Cube. Rotate 3D models of the planet, view atmospheric layers, and track weather patterns.


US Debt Clock .org
Chrono Numeric Labs LLC
View real-time data and historical trends
View real-time economic data on US federal, state, and global . Compare , GDP, and unfunded liabilities across all 50 states. Explore historical data from 1900 to future elections. Switch between US Dollar and local currency representations.


US Citizenship Test - PRO
Wei Zhang
Study and prepare for questions
Study questions with flashcards, hide answers to recall, and mark cards for later review. Prepare for the 2025 128-question or 2008 100-question . No ads included.



Fireballs in the Sky
Curtin University
Report fireballs, contribute to science.
The app allows users to report fireball sightings using augmented reality and sensing technology. Users can recreate their sightings, contributing scientifically useful data to the Desert Fireball Network's research.

mPing
University of Oklahoma (Information Technology)
Report severe weather in real time
Report precipitation types and locations in real time. Submit observations via photo or text. View maps showing reported weather data. Receive notifications about severe weather events. Track personal observation history.



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