Master Every Species

Our spaced repetition algorithm analyzes your performance on each card and schedules reviews at optimal intervals. Cards you find difficult appear more frequently, while cards you've mastered appear less often. This scientifically-proven method helps you retain information longer than traditional study methods.

Currently we have 100+ decks being released covering Animals, Plants and Fungi. We're constantly expanding our catalog and plan to add more thematic decks covering a wide range of species. Feel free to make suggestions at the suggestions page.

Yes! We offer a free tier that gives you access to select flashcard decks and basic study features. Our subscription unlocks the full library of decks, additional study features and custom deck creation. You can start learning for free and upgrade anytime you want.

Your progress is tracked automatically as you study. You can view detailed statistics on your user profile, including cards mastered, study streaks, retention rates. You can also view your performance on the stats page. We track your overall progress through each deck and monitor how your knowledge retention improves over time.

Yes! We pride ourselves on using only real, high-quality photographs. We do not use AI-generated images. Each species has multiple real images from different angles and environments to help you learn to identify them in various contexts. Our content team carefully curates and verifies each image to ensure accuracy. We're constantly adding new quality images to our database to provide the most comprehensive and realistic learning experience possible. Please visit the attribution page for more information or contact us for any questions.

No. We do not display graphic images such as dead, injured, or distressed animals and plants. All imagery is curated to show species in their natural, healthy state. Our goal is to support learning through positive, respectful representation of wildlife and nature — not shock value. If you ever encounter an image you believe is inappropriate, you can report it using the flag icon during a study session or test.

The test grid is an interactive assessment tool that helps you evaluate your knowledge across multiple categories, groups and subgroups. It presents you with a series of test units that covers material across our entire catalog. Its a fun and engaging way to switch up your study routine and challenge yourself!

Our flashcard decks work perfectly in your web browser on any device - desktop, tablet, or mobile. Our responsive design ensures a seamless experience across all platforms. Native mobile apps for iOS and Android are currently in development and will be available sometime this year!