01
Product definition
Problem framing, target user, core use case, first-version scope, feature priorities, user flows, and delivery plan.
Expo and React Native development
From a clear idea to a working mobile product.
I design and build focused iOS and Android apps for founders who need more than a prototype. The work can include product definition, interface design, application logic, Supabase, notifications, subscriptions, testing, and release.
Capabilities
One connected path from product decisions to release.
I can work from an existing specification or help turn an early idea into a buildable first version. The scope stays centered on the smallest product that can be tested and used.
02
Interface and experience
Screen structure, interaction patterns, responsive states, component behavior, accessibility considerations, and practical visual direction.
03
Mobile development
Expo, React Native, TypeScript, Expo Router, state management, device behavior, forms, data presentation, and application logic.
04
Backend and integrations
Supabase authentication and database work, notifications, deep links, payments, subscriptions, third-party services, and secure environment configuration.
05
Testing and release
Device testing, production builds, App Store Connect, Google Play Console, privacy requirements, subscriptions, review preparation, and handoff.
Ways to work
Start with the scope that matches the current stage.
App development is quoted after a short review because feature depth, integrations, and release requirements change the effort significantly.
01
Product Blueprint
For an idea that needs to become a clear, buildable product plan.
- Core problem and target user
- First-version feature scope
- Primary user flows
- Technical and release path
02
Focused MVP Build
For a defined mobile product that needs to become a working iOS and Android application.
- Product and interface execution
- Expo and React Native build
- Backend and integrations
- Testing and launch preparation
03
Feature Sprint
For an existing Expo or React Native app that needs a defined feature or workflow added.
- Current code review
- Feature scope and implementation
- Regression checks
- Release handoff
Working process
Decide clearly, build in useful increments, then release.
Every project is broken into visible decisions and testable outputs so progress does not disappear inside a long development cycle.
01
Scope
We define the user, essential workflow, current assets, integrations, risks, and first release boundary.
02
Build and review
I implement the agreed product in stages, share working progress, and resolve decisions against the real app.
03
Test and ship
We validate the core flows on devices, prepare production configuration, and complete the agreed release or handoff.
Before you start
Common questions.
Can you build the full app?
Yes, for a focused and well-defined product. I can work from concept through development and release. Larger platforms may need to be divided into phases or supported by additional specialists.
Do you only work with Expo?
Expo and React Native are the primary mobile stack for this service. That allows one product to serve iOS and Android while keeping the release workflow manageable.
Can you work on an app that already exists?
Yes. Existing app work begins with a code and product review so the feature scope reflects the current architecture and condition of the project.
Who owns the code and accounts?
The client should own the repository, developer accounts, production services, and business data. Access is granted through team roles where possible.
Can you also launch the app?
Yes. Production build and store release support can be included in the development scope. Existing apps that only need release help can use the separate app launch service.
Project intake
What are you trying to build?
Share the problem, intended user, essential workflow, current assets, and any timeline that matters. The first response will focus on fit and the next useful step.
Email:
hello@knotsystems.co