OtterDay vs OtterLearn

CAN YOU NAME THE WEEKDAY OF ANY DATE? OtterDay turns calendar calculation into a fast, satisfying logic game. Just as location-guessing games make geography feel playable, OtterDay does the same for dates. Learn a reliable mental method, practice it step by step, and work toward finding the weekday in five seconds—without checking a calendar. A SMART WORKOUT FOR YOUR BRAIN Every round challenges your logic, memory, number sense, and mental math. Short sessions keep your mind active while you build a practical skill that feels like a superpower: becoming a human calendar. LEARN, PRACTICE, MASTER Futuristic otter guides teach you the method one piece at a time. Start with recent dates, unlock wider ranges across centuries, and train until the calculation becomes second nature. WHY YOU'LL KEEP PLAYING • Guided lessons that explain the calendar method • Written and spoken-date challenges • Speed and precision training • Progress tracking and personal statistics • Achievements for accuracy, endurance, and fast answers • Flexible difficulty for quick practice or serious mastery MADE FOR CURIOUS MINDS OtterDay is designed for people who enjoy Sudoku, logic puzzles, mental math, number games, brain training, and learning clever systems. The method is related to John Conway's Doomsday Algorithm, presented as a focused puzzle adventure rather than a dry lesson. Keep your mind active. Sharpen your logic. Master the calendar—and see how close you can get to five seconds.

Big adventures. Brighter minds. OtterLearn turns learning into an otter-sized adventure for children from Pre-K through Grade 6. Explore math, spelling, language arts and science in a colorful river world where practice earns pearls, discoveries build confidence, and help teaches the next step. 2,650 GAMES. FIVE LEARNING LEVELS. Choose Pre-K, Kindergarten, Grades 1–2, Grades 3–4 or Grades 5–6. Each level offers more than 300 games per subject, selected for that stage of learning. The complete catalog contains 2,650 games, with some available across multiple levels. • Math: counting, place value, arithmetic, fractions, decimals, money, time, geometry, measurement, graphs and word problems. • Spelling: phonics, letter sounds, listening, word building, vowel patterns, silent letters, plurals, spelling rules, roots and proofreading. • Language Arts: grammar, punctuation, vocabulary, sentences, poetry, original stories, reading comprehension and writing skills. • Science: animals, plants, habitats, weather, matter, forces, energy, Earth, space, body systems and scientific thinking. Letter and number tracing is reserved for Pre-K and Kindergarten. Older learners explore more challenging skills. HELP THAT TEACHES Stuck? Tap the golden Teach Me button to visit Otter School. Friendly explanations, memory tools, guiding questions and separate worked examples help children figure out what to do, rather than simply handing over the current answer. Read questions and lessons aloud, tap story words to hear them, and revisit missed questions in Tricky Treasures. A LITTLE PRACTICE. A LOT TO DISCOVER. • Today's Splash offers a daily four-game quest, one game per subject. • Lightning Lagoon adds an optional 60-second math or word challenge. • Otter Duel lets siblings and friends take turns at their own learning levels. • Earn pearls, XP, stars, badges and streaks through practice. • Give an animated otter personality with outfits and accessories. • Decorate a cozy bedroom and living room in Otter Cove. Beautiful illustrated scenery, playful rewards and gentle recorded music make every visit inviting. PARENTS STAY IN THE LOOP • Protect purchases and grown-up settings with a parental gate. • Follow each child's progress by subject and skill. • Review recent misses and export PDF progress reports. • Set daily screen-time limits. • Choose an available narration voice and adjust speaking speed. • Pick from three background melodies, with separate music and sound-effect volume controls. • Keep multiple child profiles, sync through iCloud, and export or restore backups. SUPPORT FOR DIFFERENT LEARNERS Read-aloud questions and lessons, tap-to-hear story words, reading-friendly spacing, VoiceOver labels and Reduce Motion support help children learn in ways that work for them. PRIVATE, WITH OFFLINE LEARNING No ads. No tracking. No OtterLearn account or login needed. Learning records stay on your devices and in your family's own iCloud storage. Learning activities work offline; purchases, purchase restoration and iCloud synchronization need an internet connection. FREE TO START Explore 108 permanently free games across the catalog, plus a rotating premium game available free each day. Availability varies by learning level. OtterLearn Premium unlocks the full catalog, additional child profiles and complete parent reports. Choose a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Manage or cancel subscriptions in your Apple account settings. Made with love for curious otters everywhere. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://otter-core.com/privacy