Quanta — Passo a Passo Ativo

Learn by solving one step at a time. Quanta — Passo a Passo Ativo turns exercises into guided paths where you identify the next reasoning step, test an answer and get immediate feedback. Features include guided questions, explanations during practice, mistake review, progress tracking, achievements and an optional AI tutor. Progress is stored on your device and no account is required. The AI tutor uses the internet and only receives a question when you choose to send it. Access requires an auto-renewable monthly subscription purchased through the App Store. Billing is handled by Apple and can be canceled in account settings. There are no ads. The learning content and interface are currently in Brazilian Portuguese. It covers mathematics, physics, chemistry and related subjects for school, exam preparation and undergraduate study. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/