Inside the app
A closer look.
About this app
Made for a clear purpose.
Epubproof: Book Audit is a focused, fully on-device app. An offline EPUB 2/3 package and accessibility auditor for manifests, spines, links, navigation, metadata, media overlays, contrast notes, and publication reports.
KEY FEATURES - Inspect container, OPF manifest, spine, and navigation - Find missing resources, broken fragments, and duplicates - Audit language, title, landmarks, alt text, and headings - Preview reading order and document outlines - Export an evidence-rich remediation report - Complete bundled sample and local comparison workflow - Local PDF report and Apple system share export - Original offline technical reference library
ONE-TIME AND PRIVATE - One paid download; no subscription or in-app purchase - No account, advertising, analytics, tracking, or developer-operated backend - Core features and bundled content work offline - Work remains on device unless you deliberately share or export it through an Apple system interface
Editorial preflight aid, not an official conformance certificate. Test the final book in target reading systems and with assistive technologies.
