Beautifully smart apps for iOS and Mac
Substage A natural language command bar for your Finder windows](https://selkie.design/substage)
A Mac app that puts a command bar below your Finder window and allows for media conversion, quick calculations, file management, and more.
Hour by Hour Day planner Sketch a plan. stick to it.](https://selkie.design/hour-by-hour)
Planning a trip? Organising classes? Packed day ahead? Hour by Hour helps you plan your day quickly and easily with natural language.
Crafted with care by Joseph Humfrey, co-founder of indie game studio inkle, creators of narrative delights like 80 Days, Heaven's Vault, Overboard!, and A Highland Song.
Latest posts from Joe's blog
Hour by Hour is here!
31st March 2026
What if code wasn't a text document?
27th February 2026
Instant Actions added to Substage
16th January 2026
Live Activities Are Usually Half Asleep
27th December 2025
Godot’s Scene System Is Just Brilliant
28th November 2025
Getting Apple’s tiny on-device Foundational Model to pick SF Symbols in Hour by Hour
14th November 2025
The Selkie Design blog is now Joe's blog
14th October 2025
Substage Predicts...
31st July 2025
Substage ❤️ Setapp
2nd July 2025
The Shortcut to integrating Private Cloud Compute into my app
20th June 2025
Substage update: Bring Your Own AI & One-off purchase out now!
25th March 2025
Introducing Substage: A natural language command bar for Finder
18th March 2025
Hour by Hour has been named!
13th January 2025
Playful visual design for indie apps
3rd December 2024
Exploring CloudKit and CKSyncEngine for my SwiftUI App
16th November 2024