Mobile App Development in Seattle, WA

Looking for mobile app development in Seattle, WA? GiddyUpp builds for businesses across the Seattle large city and the wider West. Native-quality iOS and Android apps built from a single modern codebase. From MVP to App Store launch, we ship mobile products people actually use.

What we deliver

  • UX/UI design + interactive prototype
  • Cross-platform iOS + Android build
  • Backend, auth, and push notifications
  • App Store + Play Store submission

Why Seattle businesses choose GiddyUpp

Plenty of agencies will sell Seattle businesses a template and disappear. We don't. Every app development engagement is custom-scoped, fixed-quoted up front, and built by senior people who answer the phone.

Projects from $15,000+
Fixed quote after a free discovery call

How it works

Discovery
We learn your Seattle business and scope the work.
Plan & quote
A fixed price and timeline — no surprises.
Build
Senior team ships in fast, visible cycles.
Launch & support
We deploy it and stick around.

Mobile App Development in Seattle — FAQ

How much does mobile app development cost in Seattle?

Most app development projects for Seattle, WA businesses start around $15,000+. We give you a fixed quote after a short discovery call — no hourly surprises.

Do you work with businesses based in Seattle?

Yes. GiddyUpp works with clients in Seattle and across Washington, fully remote. You get a dedicated point of contact and regular progress check-ins regardless of location.

How long does a app development project take?

Timelines depend on scope, but most Seattle-area engagements move from kickoff to launch in a matter of weeks, not months. We show you working progress early and often.

What makes GiddyUpp different from other Seattle agencies?

We combine an AI-powered marketing platform with a senior agency team, so Seattle businesses get both the software and the people. Fixed pricing, real ownership of your code, and ongoing support after launch.

Ready to build something in Seattle?

Tell us what you need. We'll send a fixed quote and a clear plan — usually within one business day.

Get your free quote