The whole workflow,
less than a coffee a week.

Lossless FDX with Final Draft. Locked scene numbers. Coloured-page rotation. Industry PDF. Voice-tuned AI. A real editor on your phone. Offline when you need it. $9 a month or $90 a year. 14-day free trial. Cancel any time.

Pro vs. the rest.

• ✓ Yes · ~ Partial · — No
• Native desktop (Mac + Windows): Highland Pro: Mac only

What that actually means.

• Lossless FDX — your draft survives the round-tripOpen in Arqo, save out, hand to a production coordinator using Final Draft 13 — locked scene numbers, A-pages, dual-dialogue blocks, and revision IDs come back cleanly. The format passes FD's own conformance suite.
• Coloured-page rotation in PDFBLUE → PINK → YELLOW → GREEN → GOLDENROD → BUFF → SALMON → CHERRY, with DOUBLE rotations after pass 9. The asterisk gutter on the right margin marks every changed line. The same PDF a script supervisor expects from FD.
• Voice-tuned AI — five style anchorsDrop up to five scenes you wrote in your voice and Arqo carries that voice into every Suggest, Inspire, and Surgeon prompt. No generation from scratch — only restructuring and surfacing of what you wrote.
• Phone editor with three viewsPages, Flow, and Beats — all on a 390px screen. Swipe between them. Write a scene on a train, walk a beat on a plane, read your structure on a phone in bed.
• Offline when you need itWeb, native macOS / Windows shell, and iOS — all hold a draft offline and sync when you reconnect. Your script works in the quiet places.