Launchpad

Small studio. Useful apps. Shipped from a rock in the Pacific.

Launchpad is the publisher behind Pacific Watch, Spin Spin Revolution, Summon3D, and ABA Mastery. One person, no fluff — software built to be the kind I'd want to use.

Apps shipped
4
Founded
2023
Team
Solo
Platforms
iOS · Web

Focused apps for the people who'd actually use them.

Launchpad ships software the way I'd want it to behave: fast, opinionated, and respectful of the user's time. Each app stays narrow on purpose — one job, done well, in front of you when you need it.

No dashboards full of vanity metrics. No growth-team dark patterns. No AI banner above every feature. Just tools that do the thing — and quietly get out of the way.

Most of what's here started as a personal itch: a missing app, a workflow I couldn't find, a problem worth carrying. Building under one studio umbrella keeps the work consistent without dragging a personal name across every install screen.

Four apps. Each one earns its own page.

ABA Mastery logo
2026
New

ABA Mastery

AI-powered BCBA exam prep.

A mobile-first study companion for aspiring Board Certified Behavior Analysts — domain drills, mock exams, spaced flashcards, and an AI tutor that explains why an answer was wrong, not just that it was.

  • Adaptive readiness score, weighted by domain coverage
  • Quiz modes: domain drill, quick quiz, mock exam, weak areas
  • Original scenario-based question bank, no copyrighted BACB material
PWAReactHonoDrizzlePostgres
Pacific Watch app icon
2025 — Present

Pacific Watch

Real-time Hawaii preparedness dashboard.

Earthquakes, volcanoes, surf, air quality, power outages, traffic cams — every signal that matters in Hawaii, aggregated from a dozen-plus public APIs into one calm, glanceable view.

  • 19+ backend integrations across USGS, NWS, and Hawaii DOH
  • Color-coded threat dashboard across 8 categories
  • Live HLS traffic and scenic camera grid, 100+ feeds
Next.jsTypeScriptSupabaseLeaflet
Spin Spin Revolution logo
2026

Spin Spin Revolution

A rhythm game for your spin bike.

Connect a Bluetooth cadence sensor, pick a song, and chase RPM targets that sync to the beat. Score points for accuracy, build streaks, and battle friends in real time.

  • Bluetooth Web API integration for cadence sensors
  • Real-time multiplayer via Supabase Realtime channels
  • Community pattern library with likes, search, and sharing
Next.jsSupabaseStripeBluetooth Web API
Summon3D logo
2023 — Present

Summon3D

3D printing as a service.

Upload a model, preview it, get a quote, and ship — an end-to-end SaaS for makers who want their files turned into parts without thinking about printers.

  • End-to-end order flow with Stripe checkout
  • Real-time order status and admin dashboard
  • 3D model preview on upload, scalable order pipeline
Next.jsTypeScriptPostgreSQLStripe

The door is open.

Launchpad is a one-person studio, but it isn't a closed one. Writing about an app, exploring a partnership, or have something we should build together? Reach out — I read everything.

david@daviddo.dev
Available on
Download on the App StoreThe webPWAiOS