BirdTrackBirdTrack lets birdwatchers log, manage, and explore personal bird records while contributing to UK and Ireland conservation science. Free web and mobile app.(0)0
Tricky BridgeLearn bridge the fun way with Tricky Bridge. 57 structured lesson modules, unlimited robot practice, and online duplicate tournaments — free on iPhone, iPad, and Android.(0)0
PlickersPlickers is a free classroom assessment tool that lets teachers collect real-time student responses using physical cards — no student devices needed.(0)0
Traveling BirderPlan smarter birding trips with Traveling Birder. Find target species you haven't seen, discover top hotspots, and optimize your driving route using real-time eBird data. Free, no account required.(0)0
KravTrainerKravTrainer is a free Android app with 300+ randomized Krav Maga attacks presented via animation, text, and speech to make solo training more effective.(0)0
Schoolhouse WorldJoin over 196,000 students on Schoolhouse World for free SAT bootcamps, homework help, college admissions workshops, and global peer dialogues — founded by Sal Khan of Khan Academy.(0)0
Universal Life ChurchGet ordained online for free with the Universal Life Church. Legally officiate weddings and ceremonies worldwide with access to training, wedding scripts, and state laws.(0)0
Smiling MindSmiling Mind is a free, evidence-based mindfulness and mental fitness app developed by psychologists for children, families, and schools. Build daily wellbeing habits.(0)0
ZooniverseJoin millions of volunteers on Zooniverse to help researchers classify, transcribe, and analyze data across biology, space, history, medicine, and more — for free.(0)0
FamilyEchoCreate, share, and print your family tree online for free. Add photos, biographical details, import GEDCOM files, and collaborate with relatives — all in your browser.(0)0