Passa CNH: Tests and Signs

IOCODO LLC

About this app

Passa CNH is a study app for Brazil's CNH driving theory exam (the "prova teórica do Detran"), built around the reformed 2026 exam format: 30 questions, 20 correct to pass, across the 4 content blocks. Passa CNH is an independent study app, not affiliated with Detran, Contran, or any government body.

The app is entirely in Brazilian Portuguese. It includes a timed practice exam, per-subject practice with law-referenced explanations for every question, a traffic-sign trainer, a mistake-review queue, and a readiness score.

If you are studying for the Brazilian CNH exam, this app is for you even without English. The interface is simple and visual, and every question comes with a clear explanation.

OFFICIAL SOURCES

All content is based on Brazil's public traffic legislation. Consult the original government sources:
Brazilian Traffic Code, Lei 9.503/97: https://www.planalto.gov.br/ccivil_03/leis/l9503compilado.htm
CONTRAN and Senatran resolutions: https://www.gov.br/transportes/pt-br/assuntos/transito

Passa CNH does not represent Detran, Contran, or any government entity.

What’s new

• Textos maiores nos celulares grandes: o app agora usa a tela que você tem, em vez do tamanho de um aparelho pequeno.
• Botões de avançar, voltar e fechar com área de toque maior, e o botão principal legível também quando está desativado.
• Abertura mais rápida e mais estável, mesmo com internet ruim.
• "Reduzir movimento" do iPhone agora é respeitado igual ao do Android.
• Login com Google e com a Apple atualizado.