Antoine v.d. SwiftLee 
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avanderlee.com
Antoine v.d. SwiftLee 
@avanderlee.com
I teach 150K developers how to write better apps faster through my developer tool, blog, and newsletter. Join my newsletter to get started: https://www.avanderlee.com/swiftlee-weekly-subscribe/
Pinned
📸 Detect barcodes like QR in Xcode's Simulator ✨

@rocketsim.app Camera Simulation supports capturing metadata 🚀

If you're using AVCaptureMetadata or Vision to detect codes, you'll easily be twice as fast during development. In fact, this might be the only way to test your app using the Simulator!
Do you know whether your Xcode project's build time became faster or slower this year?

If you've used RocketSim's build insights, you would know!
January 11, 2026 at 4:24 PM
I'm offering 1-on-1 coaching sessions to help you achieve your goals.

Find out more: https://newsletter.avanderlee.com/1on1
January 9, 2026 at 11:29 AM
Learn how Icon Composer can impact your icon design

🤖 From AI to Icon Composer
🫢 My embarrassing AI-generated icon
✨ Polished end result

https://www.avanderlee.com/workflow/icon-composer-transforming-an-ai-generated-icon/
Icon Composer: Transforming an AI-generated icon
Get tips on using Icon Composer to generate polished app icons, with insights from industry expert Michael Flarup.
www.avanderlee.com
January 8, 2026 at 2:48 PM
January 8, 2026 at 9:59 AM
My custom ChatGPT project knew all my app details, so I asked it to generate an app icon that went well with it.

I was pretty impressed at first, until I received the app icon design from a pro designer 🙈

https://www.avanderlee.com/workflow/icon-composer-transforming-an-ai-generated-icon/
January 6, 2026 at 2:08 PM
Learn how Icon Composer can impact your icon design

🤖 From AI to Icon Composer
🫢 My embarrassing AI-generated icon
✨ Polished end result

https://www.avanderlee.com/workflow/icon-composer-transforming-an-ai-generated-icon/
Icon Composer: Transforming an AI-generated icon
Get tips on using Icon Composer to generate polished app icons, with insights from industry expert Michael Flarup.
www.avanderlee.com
January 5, 2026 at 1:42 PM
I've been developing apps since 2009, and I'm now offering free 1-on-1 career advice sessions.

Find out more here: https://newsletter.avanderlee.com/1on1
January 2, 2026 at 7:43 PM
Learn by shipping 🚢

Some would say it's crazy — I would say it's a must for side projects.

Find out why: https://slides.going-indie.com/
January 2, 2026 at 11:06 AM
It's time to reflect on 2025!

🎯 Milestones and achievements
🚀 RocketSim's Success
🔮 A look into 2026

https://www.avanderlee.com/general/swiftlee-in-2025-a-full-year-as-an-indie-developer/
SwiftLee in 2025: A full year as an indie developer
Reflecting on SwiftLee 2025: milestones, independence, and a transformed approach to app development.
www.avanderlee.com
January 1, 2026 at 4:34 PM
January 1, 2026 at 12:52 PM
How to Find a Winning App Idea (Before You Waste Months Building the Wrong One)
Before you build your next app, make sure the idea can actually make money. In this episode, I break down the exact framework I use to validate profitable app ideas — long before writing any code. You’ll learn how to avoid wasting months on the wrong app idea and how to use AI, ASO tools, and market research to discover ideas with real potential. If you’re trying to go indie, hit your first 1K MRR, or build an app that grows into a business, this process will completely change how you think about “good” app ideas. WHAT YOU'LL LEARN - How to find app ideas that make money - My 8-step checklist for validating any app idea - How to test demand using ASO tools like AppFigures - How AI becomes a powerful app-idea sparring partner - Why passion & competence matter more than you think - Real examples: The two ideas I'm considering - How to match your skills with a big enough market - Why most developers quit too early — and how to avoid it CHAPTERS 0:00 – Why most developers pick the wrong app idea 0:23 – The 8 rules for a profitable app idea 3:39 – Monetization paths that actually work 4:35 – Why copying existing apps will get you rejected 5:49 – Using your audience as a competitive advantage 6:01 – Where good app ideas actually come from 7:01 – AI as your brainstorming partner 8:03 – Turning inspiration into real evaluation 10:35 – Mapping your skills & interests 12:05 – App Idea #1 13:02 – App Idea #2 14:04 – Validating ideas using ChatGPT 18:03 – Validating ideas using ASO tools 22:48 – Does a LinkedIn app idea make sense? 23:23 – Why the YouTube idea might have bigger potential 26:11 – The role of passion (and why most developers quit) 27:27 – A real example: RocketSim’s slow early growth 28:27 – Learn by shipping 28:44 – Summary & what’s next DON'T MISS OUT ON THE JOURNEY If you enjoyed this, Like & Subscribe! I’m documenting the entire journey of building a new indie app from scratch — idea to 10K MRR. Subscribe so you don’t miss the next episode where I reveal which app idea I’ll build. #appideas #profitableappideas #appideastomakemoney #buildinpublic #indiedeveloper #swiftdevelopment #iosdevelopment #swiftui #swiftlanguage
www.youtube.com
January 1, 2026 at 11:10 AM
A personal milestone for me in 2025 was the week of WWDC.

Meeting so many great developers from the community, as well as presenting RocketSim at the Meta headquarters.

What's your highlight of the year 2025?

https://www.avanderlee.com/general/swiftlee-in-2025-a-full-year-as-an-indie-developer/
December 30, 2025 at 12:47 PM
It's time to reflect on 2025!

🎯 Milestones and achievements
🚀 RocketSim's Success
🔮 A look into 2026

https://www.avanderlee.com/general/swiftlee-in-2025-a-full-year-as-an-indie-developer/
SwiftLee in 2025: A full year as an indie developer
Reflecting on SwiftLee 2025: milestones, independence, and a transformed approach to app development.
www.avanderlee.com
December 29, 2025 at 12:51 PM
I'm building a new app! And that's been a while 🙈

💸 Trying to reach 10K MRR
🎥 Documenting everything
🤝 A real development journey

https://www.avanderlee.com/workflow/from-app-idea-to-10k-mrr-youtube-series/
From App Idea to 10K MRR - YouTube Series
Learn how to transform your app idea into a successful project while reaching 10K Monthly Recurring Revenue.
www.avanderlee.com
December 26, 2025 at 12:17 PM