kMath vs NOBOOK Lab

Users can prepare for IKMC - International Kangaroo Mathematics Contest with thousands of questions an explanations. New questions and explanations will be updated monthly. There are 6 levels from Pre-Ecolier to Student to practice with variety knowledge from grade 1 to 12. You can upgrade to PRO by purchasing an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • 3 month ($14.99) durations • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase • Privacy policy: https://sites.google.com/view/kangaroo-math-app • Terms of Use: https://sites.google.com/view/kmath-terms If you have any problems, please take a screenshot and send it to our email: izi.app.pro@gmail.com . Thank you so much.

NOBOOK lab , Your lab ,No limits [1000+ DIY Experimental Equipment] Explore freely with 1000+ pieces of experimental equipment, and experience a brand-new interactive learning mode. Exclusive self-developed 8 major engine algorithms allow for free combination of equipment, enabling you to instantly observe experimental phenomena and results and explore the experimental methods you want! [A Vast Number of High-quality Experiments] An authoritative and comprehensive experimental resource library, covering more than 700 experiments. You can search for experiments by knowledge points, learn right away, and get started in minutes. There are high-quality experiments in multiple modules of physics including biology, optics, electricity, mechanics, and thermology; chemistry includes both organic and inorganic chemistry content.