Now accepting 3 design partners for the 30-day Product Growth Sprint.Apply for a sprint →
Spec-driven AI app builder

Build production apps from specs, not prompts.

Polaris helps founders and teams turn PRDs, product specs, user flows, data models, and acceptance criteria into full-stack applications that are easier to inspect, edit, and ship.

Why spec-first

Prompt-first tools are great for demos.
Spec-first building is better for products.

Vague prompts create vague software. Polaris starts with structured product intent, so the generated app has a clearer relationship to users, flows, data, states, and acceptance criteria. The result is software you can actually ship.

Spec — Polaris AI · Production ready
F-001
Auth: email + magic link
P0 · Sprint 1 · done · build verified
F-002
Dashboard with usage metrics
P0 · Sprint 1 · in_progress · 4/6 criteria
F-003
Stripe billing + cost ceilings
P1 · Sprint 2 · todo
F-004
▲ Deploy: Vercel build passed · Supabase migrated
Live URL provisioned · keys handed back to you
How it works

Import real product intent

Bring a PRD, spec, roadmap item, user flow, data model, or structured product brief. Polaris reads your intent, not just your words.

Generate full-stack foundations

Create frontend, backend, data models, and core flows from a single product specification. Not a demo. A deployable foundation.

Iterate through specs

Describe changes as structured requirements instead of one-off prompt patches. Your product intent is preserved across every iteration.

Share and review

Create demos and previews that teammates, customers, or investors can understand. The spec is the source of truth.

Upgrade into Einstein Labs

When the project needs deeper product strategy, analytics, launch, or monetization support, move into a Product Growth Sprint.

Pricing

Start free. Scale when you need to.

Free
$0
forever

Limited trial generations. Try it before you commit.

Builder Pack
$499
one-time

For serious builds, prototypes, and internal tools.

Startup Pack
$1,999
one-time

Includes onboarding and multiple production app generations.

Studio Pack
$5,000
one-time

Includes guided spec-to-production support from the Einstein Labs team.

Ready to build from a spec?

Start free. Upgrade when you are ready to ship production software.