Free tools we build for anglers and the rivers we fish. No accounts, no cost — just open them and go. Each one started as something we needed on our own water.
Live · conservation
Real-time flows and water temperatures for San Luis Valley rivers — Rio Grande and Conejos gauges in one view. Know before you go, and know when the water’s running too warm to fish responsibly.
Open Stream Gauges ↗Free · fly tying
Build and customize fly patterns with a material substitution system and a library of 45+ patterns. Installs to your phone’s home screen so it’s with you at the vise.
Open Fly Builder ↗In development
A conservation-education platform for classrooms and Watershed Ambassadors — lessons, teacher guides, and progress tracking, built with San Luis Valley Trout Unlimited.
Coming soonEvery tool here started as something we needed on our own water, then cleaned up enough to share. RAF Software builds free, practical apps for anglers and conservation — and we’re always tinkering with the next one. Have an idea, or need something custom for your shop, chapter, or classroom? Let’s talk.
Talk app development →