Our apps
What we’re building
Two native iOS apps in active development. Both are built the same way: focused, native, and designed to keep your data on your device.

Run Appy
Training plans that respond. Running for the rest of us.
Run Appy builds personalized training plans for new runners and seasoned runners alike. No feed, no followers, no kudos. Built with all of the tools you could want to help you build a healthy running habit.
What it does
- Training plans derived from your goals, not picked off a shelf
- Race plans built to get you ready for race day
- Habit plans design to help you find your ideal running habit
- Record runs, rides, and walks with GPS, and see the route afterwards
- Seamlessly integrates with Apple Health to meet runners where their data is already at
- Import .fit files from watches and bike computers
- A race log that keeps your personal bests and what each one beat
- This week's session on a home-screen widget
- Your activity history stays on your phone
Your data: It uses your location (including in the background) to record routes, motion data to estimate cadence and steps, Bluetooth to read a heart-rate strap, and Apple Health to read and save workouts. That information stays on your phone and in Apple Health. Hemlock East never receives it.
NightGlass
Hold up your phone and learn the sky above you.
Point your phone at the sky and NightGlass shows you what's actually up there: the stars, planets, and constellations above you right now, from wherever you happen to be standing.
It works out where the Sun, Moon, and planets are right on your phone, using the same models astronomers rely on. Once it's installed, you don't need a signal to use any of it.
What it does
- Point your phone at the sky to identify stars, planets, and constellations
- Live positions of the Sun, Moon, and planets, worked out on your phone
- Browse Messier deep-sky objects and constellation figures
- Watch the current phase of the Moon
- Search for an object and read about what you find
- Keep a life list of what you've seen and save your favorites
Your data: It uses your location and your phone's motion sensors to show the sky from where you're standing and to match the view to where you point. That happens entirely on your phone. Hemlock East never receives it.
Both apps are in development and not yet available on the App Store. Want to know when they ship? Send us a note at hello@hemlockeast.com.