David Ewins
I make apps.
Apps

Splits
Currency converter, bill splitter and trip spend log. On the App Store, Android coming soon.

Preppers
An offline library for when the internet or power is out: first aid cards, medical, repair, food and books. Free, in your browser.

VOID
Food and more from local businesses in Galway, delivered by local riders. On the App Store.

TKVR
Memberships for anyone with an audience. Tiers, members-only posts and a community chat. 0% on your first 10,000 US dollars, then 3%.

SELLERS
Online ordering for Irish independents. Take orders on your own storefront and keep your customer list.

RIDERS
The app VOID’s delivery riders use to take jobs and get paid. On the App Store.

YKYC
A Monero wallet that runs in your browser. Your keys stay on your device.
Code
Stripe Connect kit
TypeScript for Stripe Connect with onboarding in your own app over the API, platform fees, transfers and webhooks. MIT licence.
Stripe Connect fee calculator
What Stripe takes, what the platform keeps and what the seller gets, for each charge type.
Stripe emulator
A local Stripe API server with Connect support, so marketplace tests run offline. MIT licence.
Liquid Glass playground
Design a glass button or view, copy the Expo UI code.
SF Symbols to Material icons
Find the matching iOS and Android icon names for Expo native tabs.
Error library
Errors I hit building Expo and React Native apps, with the cause and the fix that worked.
Design tools
ZESTY UI
The component kit behind my web apps: buttons, inputs, lists, sheets and more, one version of each.
Colours
Build a palette with light and dark themes, check contrast, export it to CSS, Tailwind, React Native or SwiftUI.
Fonts
Pair a heading and body font, preview them, and read where famous fonts came from.