Small apps, made carefully.
Software for the Mac and iPhone that does one job well — for the shop, the cockpit, the campsite and the books. No accounts, no telemetry, and no subscriptions to keep it working.
Six apps, one maker
Each one started as a problem I actually had. None of them want an account, a subscription, or your attention for longer than the job takes.
Coming soon
Fermo macOS
Small-business books for the Mac — invoices, a counter, the bank feed and the crew.
Free beta
Lathe.Co macOS
Parametric solid CAD, with drawings a machinist can actually read.
Free download
Anvil macOS
A weather-radar workstation that reads the raw Level II feed.
App Store
Weather.Co iOS
Aviation weather and briefings, free for every pilot.
Open beta
Outpost.Co iOS
The whole camping trip in one app, from the packing list to the hike.
App Store
tmpo iOS
Recovery, training, nutrition and sleep on one calm daily surface.
New · Fermo for Mac
The books, the counter and the crew, in one app.
Invoices paid online, a register for walk-in sales, the bank feed and a month close that does itself — on proper double-entry books. Pay once; no monthly fee.
Lathe.Co · macOS
Sketch it, build it, draw it for the shop.
Parametric solid CAD for the Mac, free. Hidden-line views, sections, GD&T and hole charts on a sheet a machinist can read. Plain-text files. No account.
Anvil · macOS
The raw radar feed, the way professionals read it.
Gate-accurate reflectivity on the GPU, storm-relative velocity, dual-pol, hail and rotation — and a helper that watches for severe weather near your own address.
Made by one person, on purpose.
No accounts
Nothing to sign up for. Your data lives on your own device, or in your own iCloud, and nowhere else.
No telemetry
No analytics, no ad networks, no trackers. The apps talk to public data sources and to nobody about you.
Ships when it's right
Every app is released when it's ready, not when a calendar says so — and tells you plainly when it's still a beta.
A question, a bug, or an idea for an app?
Every email is read by the person who wrote the software.