Errly: AI Tutor Error Book APK for Android

Errly: AI Tutor & Error Book, from Ganzhou Yunxiangji Technology, digitizes students' mistakes into a structured study system for STEM learning. The app uses camera capture combined with an AI tutor to turn incorrect problems into targeted practice and guided explanations. Its workflow centers on capturing errors, encouraging deliberate review, and building a personalized study record. Designed for K-12 and college students, plus parents and tutors seeking disciplined concept work.

What tasks does Errly capture and teach?

Errly scans handwritten or printed math, physics, and chemistry problems using the device camera, then provides step-by-step guided solutions that explain the logic behind each step. The app saves incorrect attempts into a digital error notebook so learners keep a persistent record of problem types and misconceptions. This capture-to-explanation flow targets specific errors rather than offering only final answers.

How does Errly support deliberate practice and retention?

The app applies a spaced review approach to schedule follow-up study based on a student's error history, and it includes a Self-Discipline Mode that keeps answers hidden until learners attempt the guided steps. These elements combine automated review timing with enforced attempt-before-answer behavior, encouraging repeated retrieval and focused correction of weak concepts rather than passive answer viewing.

Is Errly appropriate for K-12, college students, parents, and tutors?

Errly is positioned for STEM learners in K-12 and higher education and for parents or tutors who manage study plans. The developer emphasizes high-performance handwriting recognition that reads messy student handwriting directly from paper, which supports classroom and homework workflows that rely on photographed worksheets. The app is available on Android and has versions for iOS and iPadOS.

How does Errly show mastery and archive student work?

Smart Mastery Tracking produces visual reports that highlight growth in specific topics over time, and the app can export organized error books as printable PDFs for offline practice. The developer frames the product as a pedagogical tutor rather than a homework solver, so progress visuals and exportable notebooks serve teachers and self-learners who prefer structured review and documented evidence of improvement.

Errly is a practical study aid for STEM students who want mistake-driven practice

Errly suits K-12 and college learners, tutors, and parents who prefer disciplined, concept-focused study built from real errors; its emphasis on STEM means learners in other subjects gain less direct value. The app's smaller user base and reliance on camera input for problem capture are practical considerations for instructors evaluating classroom adoption.