Elebox vs Curio

Collect all 118 elements through daily gacha draws and build your own periodic table. Each element has a rarity based on its atomic number — lighter elements appear more often, while heavy rare elements are harder to find. Upgrade your collection from Normal to Diamond rank as duplicates accumulate. USE YOUR ELEMENTS TO SYNTHESIZE COMPOUNDS Combine collected elements to create 46 compounds, from simple molecules like H₂O and CO₂ to rare noble gas compounds like XeF₂. FEATURES • Daily element gacha with atomic-number-based probability • 118 elements with 5 rank tiers (Normal → Bronze → Silver → Gold → Diamond) • 46 compounds to synthesize • Interactive periodic table with pinch-to-zoom • Daily & weekly missions with bonus gacha rewards • Long-term goals across 10 categories • Login streak tracking with calendar view • Available in Japanese and English A fun way to learn chemistry while enjoying a casual daily game. Perfect for students, educators, and science enthusiasts.

Curio turns Wikipedia into a feed of genuinely interesting facts. Swipe through surprising facts from every subject — science, history, art, space, nature, and more. Like the ones you enjoy and Curio's "For You" feed learns what you're curious about and surfaces related topics. Search any subject with live suggestions as you type, then keep pulling more facts on that topic. Save the ones you love, revisit them anytime, and share a fact with a friend in a tap. Want the full story? Open the original Wikipedia article with one tap. • Random — a surprising fact from any subject • For You — facts personalized to what you like • Search — instant suggestions for any topic • Saved — keep the facts you love, and review your likes and dislikes • Drill down — keep pulling facts on the same subject, as deep as you like • Share — send an interesting fact to anyone No account. No ads. Just curiosity.