Jake Haas

freelance developer · boston, ma

Websites & apps, built for your business.

I’m Jake Haas, a freelance software developer in Boston. I build websites, web apps, and mobile apps, and look after them once they’re live.

Tell me about your project See client work

services/

A new site, a better way to take bookings, or software that makes the day-to-day easier. I handle the design, development, and the systems behind it.

site rebuilds
A clearer, faster version of your existing site, built to work well on phones and stay easy to update.
new sites
A website that explains what you do and makes it easy for customers to take the next step.
web apps
Registration, booking, portals, dashboards, and connections between the systems your business runs on.
mobile apps
Native apps for iPhone and Android, from the first screen to the store submission.
ongoing care
Someone to call when something breaks or needs changing. Fixes, updates, and improvements as you need them.

client work/

Three sites for one client: LINX, which runs summer day camps in Wellesley, Massachusetts. I built the sites for the parent company and both camps.

  1. LINX Campslinxcamps.com ↗The flagship camp: sports, arts, STEAM, the works
  2. Camp NEOCcampneoc.com ↗The outdoorsy sister camp
  3. LINXlinx-usa.com ↗The parent company behind both

apps/

My own apps, on the stores since 2010.

  1. IndigoiOS & Android · 2026Play your classic game files
  2. Story PoleiOS & Android · 2026Rafters, stairs and layout, exactly
  3. MahWinsiOS & Android · 2026Score & stats tracker for American Mahjong
  4. GrainfalliOS, macOS & Android · 2026Physics sandbox particle toy
  5. NetKitiOS · 2026Ping, DNS & network diagnostics
  6. Cron LabiOS & Android · 2026Crontab editor & explainer
  7. Text EditoriOS · 2026Markdown, code & plain text
  8. iSplatteriOS · 2010The most satisfying way to make a mess
  9. StopWatchmacOS · 2013Menu bar stopwatch & timer for the Mac
  10. StickFightiOS · coming soonAdventure, rivals, local duels
  11. DuskwardiOS & Android · coming soonHold back the endless night
  12. WaxiOS · coming soonShape, sculpt and animate in 3D
Browse all apps

web/

  1. Game Boy emulatorbrowser · 2026Game Boy, Color and Advance, running in your browser

about/

I’ve been building software professionally since 2010, as a full-stack engineer, backend systems administrator, and solutions architect. Most of that was on staff; these days I freelance.

That experience means I’m comfortable owning a project from start to finish. You work directly with the person designing, building, and maintaining it.

contact/

What are you working on?

A few lines about your project is plenty to start. If you have an existing site, send the link too.

jake@jakehaas.com

Need help with one of my apps? Find your app and its support page.