250+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our citizen scientist list covers 250+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | No | Aug 2026 |
| 2 |  | Free | 4.0★ (639) | No | No | Sep 2026 |
| 3 |  | Free | 4.6★ (4.7K) | No | No | Sep 2026 |
| 4 |  | Free | 5.0★ (7) | No | No | Jul 2026 |
| 5 |  | Free | 5.0★ (4) | No | No | Jul 2026 |
| 6 |  | Free | 3.1★ (86) | No | No | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | 4.8★ (15K) | Yes | No | Sep 2026 |
This app uses ecological momentary assessment to track how your environment impacts your mental wellbeing. It prompts you with questions, allows for photos and audio recordings, and provides personalized reports. Your anonymous data helps researchers understand environmental influences on mental health.
Identify plants, animals, and fungi using your camera or imported photos. Get AI-powered species suggestions and connect with a global community of nature enthusiasts to learn more about the natural world and contribute to scientific conservation efforts.
Record and identify species encounters with a simple interface. Contribute to scientific research and learn about biodiversity. Connect with other nature enthusiasts and explore the natural world.
Become a citizen scientist for the South Carolina Aquarium. Record wildlife observations, view community reports, and contribute to environmental protection efforts. This platform is powered by Anecdata.org, a free citizen science resource.
This platform empowers users to create, manage, and participate in citizen science projects. It facilitates data collection in the field, even offline, and supports project analysis and download.
Contribute to real scientific research by making environmental observations. Document clouds, mosquito habitats, land cover, and trees using your mobile device. Your data supports scientists worldwide, including NASA and NOAA.
Access over 150 million scientific publications and connect with millions of researchers worldwide. Stay updated on new research in your field, track your academic stats, and download full-text articles for offline reading.
Prepare for the US Citizenship Civics Test with flashcards, practice tests, and audio for all 100 official questions. Includes state-specific information and real-time updates on government officials. Aimed at helping applicants pass their naturalization interview.
Participate in real scientific research by classifying data for projects across various disciplines. Contribute to discoveries and datasets that advance knowledge, all from your mobile device. This platform connects volunteers with professional researchers for impactful citizen science.
Engage with the science community and discover research opportunities. Socialize with like-minded individuals, earn tokens for contributions, and access educational content.
Access award-winning journalism on science and technology. Read daily news, watch videos, and listen to podcasts covering topics from AI to quantum physics. Log in with your subscription for full access.
