Services
Work with the builder directly
Need an app built, audited, or launched? It's the same pair of hands behind every Sigma Stack product — no account managers, no handoffs, no junior team you never meet.
App development
From an idea or a Figma file to a polished app in the stores — designed, built, and shipped by one person, with no handoffs.
- React Native (Expo) + TypeScript, built on battle-tested foundations
- Full cycle: UX, build, and App Store + Play Store submission
- Auth, payments (RevenueCat), and AI features wired in
- Weekly shippable progress — not a black box
Code audit & review
A senior review of your existing React Native codebase — what's fragile, what's slow, and what will get rejected by the stores.
- Architecture, state, and navigation review
- Performance and bundle-size analysis
- App Store / Play Store readiness check
- Written report with prioritized, actionable fixes
Launch & store submission
Get your app over the finish line — store listings, assets, and a clean first submission that passes review.
- App Store Connect + Google Play setup
- Store metadata, keywords, and screenshots
- Privacy / data-safety forms and compliance
- Review-rejection fixes if they come up
Advisory & consulting
Ongoing technical guidance for founders and teams — architecture, monetization, tooling, and AI integration.
- Architecture and tech-stack decisions
- Monetization & RevenueCat strategy
- AI feature integration (Claude, on-device ML)
- Async or scheduled calls — your cadence
How it works
Three steps, no surprises
Scope
A quick call to understand the goal, then a clear proposal with scope, timeline, and price. No surprises.
Build
Weekly check-ins and shippable progress — you watch the app evolve, not a status doc.
Ship
Launch to the stores, hand over clean code and docs, and support the transition.
Have a project in mind?
Tell me what you're building and where you're stuck. You'll get a real reply from the person who'd do the work — usually within one business day.