Small iOS apps,
built with care.
Promptside Studio is an independent studio that makes small iOS apps, each built to do one job well.
The Apps
4 shipped
Holder
Card Vault
A private vault for your cards. Locked behind Face ID, kept on your device.
App Store
RetroBudget
AI Spend Tracker
Upload a bank statement and AI sorts every transaction. No bank login needed.
retrobudget.app
>_
Excalidraw CLI
Dev Tool
Flowcharts and diagrams from your terminal. 315+ GitHub stars.
GitHub
PaddockPlan
F1 Companion
Every F1 race, session, and start time. Pings you five minutes before lights out.
App Store
About
Promptside Studio is one person.
I design and build every app here myself, plus developer tools like Excalidraw CLI. If an app can work without an account, it doesn't ask you to make one.
- Building since
- 2019
- Based in
- San Francisco Bay Area
- Focus
- SwiftUI apps and CLI tools