Fit Stickers

Turn your workouts and health stats into fun, expressive stickers! Personalize colors, styles, and messages to match your journey. Whether you’re celebrating a milestone or tracking daily progress, your fitness story has never looked this good.

App Store

Did you ever brag to your friends about a new running PB or a week-long gym streak? I did, and I will do it again so I wrote a tiny app that turns your health data into stickers.

How it works

Step 1. Customize and generate stickers in-app. Daily activity rings, weekly activity minutes and walking distance, and metrics like VO₂ max, all pulled from Apple Health.

Fit Stickers on iPhone: a sticker card with the three activity rings for 3 Nov and Move, Exercise and Stand counts, above Daily, Weekly and Metrics tabs

Step 2. Send the stickers via Messages. The sticker pack shows up in the Messages app drawer like any other.

The Fitness Stickers pack open inside the Messages app, showing sticker tiles for the week's activity minutes, today's activity minutes and the week's distance

For those curious, here’s how the app works:

  • all the visuals are generated with native SwiftUI
  • on launch, the app converts the SwiftUI screens to PNGs using the built-in ImageRenderer class
  • PNGs are written in a directory shared with the Messages extension so stickers are available in conversation
  • recipients can still see the sticker even if the app is not installed, and importantly, tapping on it redirects them to the app page for installation

The proof of concept launched on the App Store in November 2025. I launched early and I’ll keep improving the app; adding more stickers (for different sports) and custom color palettes are on the backlog.

Can anybody think of other use cases for dynamic stickers in iOS?