iMatte vs Oppi

iMatte allows you to practise the basic Algebra operators: addition, subtraction, multiplication and division. Multiple difficulty levels make it easy to select a challenge that suits you. The free version allows you to practise addition. The full version adds subtraction, multiplication and division, Game Mode and high score chart. Game mode enables you to compete against the clock with increasing level of difficulty as your score increases.

Every evening, the same thing. Bedtime's creeping closer, the phone is glued to their hand, and you're the one who has to nag. Again. Oppi turns it around. Instead of you fighting over screen time, your child earns it — by studying. They answer a few questions, get them right, and unlock their own screen time. You don't have to raise your voice. You don't have to be the bad guy. SNAP THE HOMEWORK — NEW IN OPPI Take a photo of a page from your child's schoolbook. Oppi's AI turns it into a quiz in seconds. Your child practises exactly what's set this week — the vocabulary, the maths, the history chapter — and earns screen time as they go. They drill the questions until they stick, then those fade out automatically. You create and control the quizzes. The photos are never stored. HOW IT WORKS • The phone pauses automatically when time runs out • Your child unlocks it by passing a quiz • Snap any homework → the AI builds the quiz • Works for every subject, grades 1–9 • You choose the apps, limits and times — and lock it with Face ID LESS NAGGING. MORE STUDYING. Oppi makes screen time something your child earns, not something you argue about. The homework gets done along the way. And you get the calm back at the kitchen table. SWEDISH AND SAFE Oppi is built in Sweden. We never track you across other apps, never see your child's messages, photos or in-app content, and never sell your child's data. Screen time is counted on your child's own device, and photos are never stored. Download Oppi and be the parent you want to be — without the nagging. The subscription renews automatically unless it's cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store settings. Terms of Use: https://www.middlemilk.studio/terms Privacy Policy: https://www.middlemilk.studio/policy