Justin Costello

Seedproof — Get feedback for your startup ideas 🔥

Postedo — Simple Instagram scheduler that publishes for you

Crypto100 — The 100 most influential people in crypto

Sentry — Stop hoping your users will report errors

Plant Jammer — Build your own recipes using AI

TransferWise Debit Card — A bright green card to save you money when you pay abroad 💳💱

Seed — Store and validate your ideas in one place 💡

Enlight 2.0 — Learn to code by building fun projects 💻

Buy Me a Coffee — A simple, meaningful way to fund your creativity.

unDraw — MIT licensed illustrations for your next project

Magic Leap One — Super stealthy AR startup reveals its first product

Product Manual — A curated directory of quality resources for product people

Expo 2.0 — The fastest way to build an iOS and Android app 📱

Design Principles — An open source repository of design principles and methods

Spacewolff — P2P marketplace for ads. Turn excess space into ad space.

1-on-1 Meeting Assistant — Have the best 1-on-1 meetings with your team.