I'm pretty excited to be working on his new feature for Maxine! Monthly progress insights and deep stats. See what you've been focussing on, track PRs, compare your workouts. This one's going to be big for all you data nerds out there...

Stop guessing, start checking. Use detailed exercise videos for 350+ exercises in Maxine so you never mess up your form.

I used to not really care much about timers... but now that I've added them to Maxine I really love how they sync between my phone and watch 😎

Good form prevents injury. That's why in Maxine 2.13 you'll be able to easily see how an exercise is meant to be done through a detailed video that clearly shows the correct movements 💪 try maxine for free: https://apps.apple.com/nl/app/maxine-one-rep-max-tracker/id6615073254

Let's be honest, we all love a good gym selfie... Maxine 2.13 comes with some pretty cool ways to share a gym selfie 😁 Check it out for free: https://apps.apple.com/nl/app/maxine-one-rep-max-tracker/id6615073254

Timers should be easy to use, and they should be exactly where you need them when you need them. That's why Maxine 2.13 has timers that sync between your phone and watch with 0 effort.

11 localizations, 7 screenshots each, took me 30 minutes to update the template. 5 minutes to translate with Codex and Sketch MCP

If you want to share fun gym selfies, Maxine now has the ability to create pretty cool images for the social medias!! apps.apple.com/nl/app/maxin...

I recorded my first podcast episode. It’s called “Learning to Work“ I started it for young people and parents navigating careers in age of AI. @donnywals.bsky.social shares his origin story, core skills and his thoughts about AI and coding podcasts.apple.com/us/podcast/l...

It's all about integrating with the OS these days

Maxine is about to learn a couple new skills!

I've only had this widget for a few hours but I'm in love

AI lets you ship faster than ever. But shipping fast isn't the goal—shipping something good is. The developers who stand out will be the ones who actually use their own apps. https://www.donnywals.com/the-importance-of-human-touch-in-ai-driven-development/

What agentic engineering topic do you wish someone would explain simply, plainly, and with real examples?

Was reminded today that this exists; smart banners to redirect your users to your app from your website. Easy to add, helps with conversion 👍 https://maxine-app.com

Insights are everything. That's why Maxine will allow you to see your average heartrate per tracked exercise in the workout overview page. Train smarter!

I'm experimenting with some calmer UI options for Maxine. Using colors as accents to make the overall UI easier on the eyes while maintaining the visual information you get from the color (muscle group trained). Also made using workout plans a bit more obvious with a big "add to workout" button.

Changing your monetization strategy isn't always. Easy. That's especially the case when you're moving from a paid up front app to one that's free to try. I did exactly this last week and figured I'd share my strategy ... https://www.donnywals.com/migrating-an-ios-app-from-paid-up-front-to-freemium/

Maxine now has a new stats overview that shows you the total number of sets you performed as well as the total amount of weight you've moved. It's pretty cool to see that you've moved a couple thousand kgs worth of metal during... https://apps.apple.com/nl/app/maxine-one-rep-max-tracker/id6615073254

What are some must-have widgets that a workout app needs in your opinion?

In case you missed yesterday's post... Migrating an app from paid up front to freemium can be tricky. I wrote down my learnings on my blog right here: https://www.donnywals.com/migrating-an-ios-app-from-paid-up-front-to-freemium/ Key lesson: Handling Sandbox and Review correctly can be tricky!

Maxine migrated from being a paid up front app to being free to try. Here's what I did to make sure existing users didn't have to pay again after having already bought the app originally: https://www.donnywals.com/migrating-an-ios-app-from-paid-up-front-to-freemium/

We've got about 100 folks trying Maxine right now (since going free to try on Friday night) 🤯 I think it's safe to say that this move is a success already 😁

A good morning and happy Monday folks! What are your plans for this week? Are you working on something cool? Learning something new? Tell me all about it 😎

I'm not quite there yet with my wrist (injured first week of the year) but we're getting there… deadlifts are now only 10kg under my previous max with the help of lifting straps. 120kg next week?

I know a lot of yall are proficient in the world of AI, but for those of you that aren't… what are the things that you're secretly afraid to ask at this point?

A good morning and a Happy Monday to you all! What are your plans for this week? Shipping something? Learning something new? This is the place to share it! I will be working on updates for Maxine and Chrona, planning to ship Maxine v2.6 this week 😱

What are you working on right now?

TIL that Cloudflare uses a wall of actual lava lamps to generate random data for SSL encryption: https://www.cloudflare.com/learning/ssl/lava-lamp-encryption/

Happy Monday, folks! And a happy new year too! Hope you're all ready to kick some butt this year. I know I am. This week I'll be catching up, doing some work, and preparing for a great year. What are your plans? Any big things you want to achieve in 2026? Tell me all about it! 😎

In 2026 you can expect some health / workout app related blog posts for sure 😁

Tracking your goals and making progress visible makes you 33% more likely to actually reach said goals... Maxine can help you do exactly this for your personal fitness goals. Whether it's weightlifting or bodyweight exercises you want to get better at, Maxine can help you: https://maxine-app.com

I've been on a serious roll with Maxine for the past two weeks... I've added goals, new exercise types, watchOS support, and I've launched a marketing page (maxine-app.com). The watchOS support is waiting for review right now and I can't wait for it to go live ASAP 😁

A good morning and a happy monday to you all! Hope you've had a nice weekend. What are your plans for this week? Working on something cool? Learning something new? Tell me all about it! 😎

Knowing how to progress towards workout goals is tricky. Maxine can help decide between increasing reps or pushing for more weight. I've also included an algorithm to help you estimate your one rep max for a given exercise 🙌 https://apps.apple.com/nl/app/maxine-one-rep-max-tracker/id6615073254

A good morning and a happy Monday, folks! Welcome in December. Final stretch to wrap stuff up for the year :D What will you be working on this week? Shipping anything cool? Learning a new skill? Tell me all about it 😎

Core Data is a solid foundation for your app's data model, you can master Core Data now with Practical Core Data. Get 20% off using BF2025 at checkout https://donnywals.gumroad.com/l/practical-core-data/bf2025

Finish off the year strong and master Swift Concurrency 😁 get Practical Swift Concurrency with 20% off using code BF2025https://gumroad.com/l/practical-swift-concurrency/bf2025

This is your chance to level up your Swift Concurrency skills with Practical Swift Concurrency. Learn about everything that makes Swift concurrency tick in Swift 6.2 and beyond. Now with 20% off 😎 https://gumroad.com/l/practical-swift-concurrency/bf2025

Mastering Core Data is possibly one of the best things I could have done for my career as an iOS developer... you can do the same with Practical Core Data. Now with 20% off for Black Friday with code BF2025 https://donnywals.gumroad.com/l/practical-core-data/bf2025

Sendable, nonisolated, concurrent, main actor, approachable concurrency, and more. It's all covered in Practical Swift Concurrency. Grab the book now with 20% off for Black Friday with code BF2025 https://gumroad.com/l/practical-swift-concurrency/bf2025

A good morning and a happy Monday to you all! Hope you're all ready to have a fantastic week 😁 What are your plans for this week? Are you working on anything cool? Learning something new? Tell me all about it 😎

A good morning and a happy Monday folks! Hope you’ve had a nice weekend. What are your plans for this week? Learning anything new? Working on something cool? Tell me all about it 😎

self.age += 1

What are you thoughts on iterating Observable properties with the Observations object in Swift? I feel like it's easier to grok than withObservationTracking but the syntax is a bit verbose... how do you think Obs... https://www.donnywals.com/using-observations-to-observe-observable-model-properties/

A good morning and a happy Monday to you all! Hope you've had a nice weekend. Do you have any plans for this week? Learning something new? Working on something cool? Anything at all? Tell me all about it 😎

My Do iOS workshop will use the most elaborate setup I have ever used ... We need to talk to a server during the workshop and instead of relying on a network connection at the venue, I'm going to bring the server, and a network with me. 🤷‍♂️

Did you know that the ability to iterate arrays, sets, and dictionaries in Swift are a result of Swift's protocol oriented design? Learn more in this week's post: https://www.donnywals.com/a-deep-dive-into-collections-sequences-and-iterators-in-swift/

Do you work better with a rigid plan in place? Or maybe you prefer a loose todo list? Or do you just wing it?

A very good Monday to you all! Hope you've had a good weekend. What are your plans for this week? Are you working on anything cool? Learning something new? Anything at all? Tell me all about it 😎