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NEXO: Daily Medical Diagnosis
Medical
NEXO is a daily clinical diagnosis game for physicians and medical students. Every day a new fictional case is published with up to 6 progressive clues. You search for the ICD-10 diagnosis and get proximity feedback in 5 levels: exact code, same category, same group, same chapter, or different chapter. A wrong answer tells you how close you were, so the error itself teaches.
Beyond the daily case there are two other modes. Continents brings 103 cases organized by regional epidemiology across Africa, the Americas, Asia, Europe and Oceania. Multimedia brings 123 cases built on real clinical images and sounds: X-ray, CT, MRI, ultrasound, ECG, endoscopy, colonoscopy, dermoscopy, fundoscopy, physical exam, histopathology, blood smear, karyotype, PET/CT, otoscopy, mammography, colposcopy and cardiac and respiratory auscultation.
649 cases across 25 medical specialties, in 6 languages: Portuguese, English, Spanish, French, German and Russian. Global leaderboard, achievements and daily streaks. The daily case is free forever, with no ads.
NEXO is not a clinical diagnostic tool. It is an educational game based on fictional cases, for training purposes only.
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Prepare for Civics
Education
Prepare for Civics is an independent study app for the 2025 USCIS civics test on iPhone and iPad. It offers 124 offline practice questions, randomized 10-question sessions, immediate answer feedback, and progress saved on your device. The app costs $3.99 once in the US App Store, with no subscription or account. The companion website provides a free ten-question browser quiz, the complete 128-question study list, and a printable 14-day study plan. The official interview is oral; multiple-choice sessions are study exercises. Four location-specific questions are covered through official resource links. Not affiliated with or endorsed by USCIS or the US government.
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