Mobile-Native Government and Immigration Form Filler

mobile app real project •• multiple requests

USCIS, IRS, and other government agencies use Adobe XFA PDF forms that don't render correctly in most mobile PDF apps. Users trying to fill immigration paperwork, tax forms, or benefits applications on their phones hit broken fields, missing dropdowns, and failed submissions. A builder on HN shipped a free USCIS form filler validating this exact pain. The broader opportunity is any government PDF made mobile-friendly.

builder note

Start with the highest-pain forms: USCIS (immigration), IRS (taxes), and FAFSA (student aid). These have the most emotional urgency and the worst mobile experiences. The privacy angle is critical: users filling immigration forms are especially sensitive about data. Run everything client-side, store nothing on servers. FillVisa's architecture (browser-based, local-only) is the right model.

landscape (3 existing solutions)

Government agencies standardized on Adobe XFA forms years ago and haven't modernized for mobile. Adobe's own mobile reader handles them but with terrible UX. FillVisa proved the model for immigration forms but the gap extends to all government paperwork. Nobody has built a mobile-native form filler that converts XFA government PDFs into touch-friendly, auto-saving, smart-fill experiences.

FillVisa Free USCIS-specific form filler that works in-browser with local-only data storage. But limited to immigration forms only. No IRS, SSA, or state government forms. Single developer project.
Adobe Acrobat Reader Official PDF reader that handles XFA forms. But the mobile UX is terrible for complex government forms: tiny fields, no smart autofill, no progress saving across sessions, and premium features require subscription.
DocHub Web-based PDF editor that works on mobile. But doesn't properly handle XFA form fields. Treats government PDFs as flat documents rather than interactive forms.

sources (2)

hn https://news.ycombinator.com/item?id=46874385 "Free USCIS form-filling tool, no Adobe required" 2026-02-01
other https://support.google.com/docs/thread/106353390/can-t-fill-... "Can't fill out form from mobile" 2025-06-01
governmentimmigrationPDFaccessibilityforms