WebApporMobileApp:WhichShouldYouBuildFirst?

If your product involves complex data entry, detailed configuration, or extended focused work — the kind of task people naturally do at a desk — web is usually the better first platform, since it matches how users actually want to interact with that kind of task. Web also ships instantly (no app store review), reaches users immediately via a URL, and is meaningfully cheaper to build for validating an MVP than a native or cross-platform mobile app.

For B2B and internal tools specifically, web is very often the right first (and sometimes only) platform, since the primary use case is genuinely desk-based work, not on-the-go interaction.

If your product's core value depends on something inherently tied to a phone — location awareness, camera access, notifications that need to reach users throughout their day, or genuinely on-the-go usage patterns — mobile-first is the right call, because the product's core value proposition simply doesn't work as well on a desktop-first experience.

Consumer social and lifestyle products, where usage is naturally spread throughout someone's day rather than concentrated in focused desk sessions, often fit mobile-first more naturally than web-first.

Picture your actual target user in the moment they'd use your product — are they at a desk, focused, entering data? Or on the move, checking something quickly? That mental picture, more than general assumptions about "everyone's on mobile," should drive which platform you build first — and for many products, a well-built responsive web app (or PWA) covers both scenarios reasonably well as a starting point.