tassin.tech
NOW LIVEBridgeWatch is on the App Store.

Independent software. Louisiana roots.

I build apps
for real life.

I'm Devin Tassin. I make the tools I wish I had, from a better training session to a more informed commute.

MesoBuilder app icon BridgeWatch app icon ONE MAKER.
TWO APPS.
A little more useful, every day.

Small ideas. Real apps.

Built, shipped, and still improving.

BridgeWatch

For the Causeway commute
Available now on the App Store

Know the bridge.
Before you go.

Lake Pontchartrain Causeway status at a glance. Check conditions, get alerts when they change, and keep the bridge on your Home Screen.

  • Closure and reopening alerts
  • Home Screen and Lock Screen widgets
  • Northbound and southbound status

$3.99 once · No subscription · No ads

Unofficial. Not affiliated with the Greater New Orleans Expressway Commission. Updates may be delayed. Verify conditions with thecauseway.us before travel.

MADE FOR THE CROSSING01
BridgeWatch's green Bridge Clear screen and recent alerts, from the app's marketing screenshots
App preview · Example statusiPhone
BUILT FOR THE NEXT SET02
MesoBuilder workout screen with weight, rep and effort loggingMesoBuilder personal training dashboard
App previewiPhone + iPad

MesoBuilder

For lifters and the people coaching them

Your next set.
With a reason.

Build your training block, log every set, and get weekly weight and rep recommendations with the math behind them.

  • Training blocks that fit your routine
  • Progression you can check yourself
  • A training history that carries forward

First training block free, full progression included.
Logging and history stay free.

The person behind the apps

Hi, I'm
Devin.

Devin Tassin

Independent developer · Louisiana
Founder, Tassin Software LLC

Most of what I make starts with something in my own life that could work a little better.

MesoBuilder grew out of my own training. BridgeWatch grew out of getting caught in Causeway fog traffic. Different problems, same instinct: build something useful.

I handle the details, keep improving the apps, and listen to the people using them. Tassin.tech is where that work lives.

Also on my workbench

Local AI, automation, and security tools. Small experiments that keep me curious and feed back into what I build.

An open line

Let's talk.

App feedback, a question, or an idea worth making.

contact@tassin.tech

Notes from the workbench.

App updates and the occasional new idea.

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