Hollowfield
Collective
A small collective making apps about paying attention to things.
Folklore, sound, the water, and the sky, so far. The through line is that each one asks you to notice something you would otherwise walk past, and gives you a reason to go outside and look.
Everything here is built by a very small number of people. There is no roadmap and no funding, and things ship when they are good. Three of them are out now, all free.
What we've made
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Hollowfield Institute
iOSA field guide to real American cryptid folklore. Photograph where you are and the Institute develops the picture with something in it that was not there when you pressed the shutter. Forty legends, honestly sourced, including the ones that turn out to be documented hoaxes.
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Tone Twin
macOS SoonA tone companion for guitarists. Describe a song and it works out the target tone, then translates it into knob-by-knob settings for the exact gear you already own.
Coming to macOS.
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Whale Watch PNW
iOSCetacean sightings in the Salish Sea, in real time. It watches the Acartia network and pushes an alert when orcas, humpbacks, greys, minke or porpoises are reported near you, filtered by the species you care about and how far you are willing to drive.
On the App Store, free.
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Aurora Signal
iOSWhether the northern lights are worth going outside for tonight, where you actually are. It takes the planetary K-index from NOAA and weighs it against your cloud cover, your light pollution and the moon, then gives you one number instead of four dashboards. When the number is good it will point you at the darkest place you can reach in time.
On the App Store, free.
Open
Taking on work
The collective is taking on small app projects and ideas from other people. Small in scope, made properly, and the kind of thing that would not otherwise get built.
We work on non-profit projects too, apps, websites, or whatever their tech needs turn out to be.
If you have something, describe it and say what it is for.
Contact
Feedback, data or general questions. Ideas, enquiries, or if you want to talk about your app.