Guide5 min readUpdated Jun 4, 2026

Mobile And Flutter App Parity

Web and mobile do not need identical code, but they should preserve the same behavior and data meaning.

BYBy Team BYLT

What parity means

Parity means the same inputs, branding rules, filename behavior, locale behavior, share fallback, and pin-coordinate meaning across web and mobile.

  • Solution PDFs are BYLT-branded only.
  • Inspection PDFs use tenant-primary branding with BYLT attribution.
  • PDF labels and headings should follow the current locale.
  • Drawing pins use PDF points from the bottom-left origin.
  • Inspection PDF drawing output should use the rendered viewer snapshot where possible.
Do not duplicate pin math in exports

If the drawing viewer already renders the pin correctly, export should capture that composed view instead of recalculating marker placement.