And even though AI can write code on its own these days, for now, I just really enjoyed the learning process. And if the app makes a few people happy like it does for me, that’s more than enough :).

It’s a simple app, nothing revolutionary, and I’m sure someone on this platform could recreate it in a few hours using Cursor/Lovable/Replit/etc. But going through the process with ChatGPT, asking questions, understanding the answers, and manually integrating the code felt like.

The last 10% – fixing bugs, adding small but important improvements, and dealing with App Store regulations – took me quite a while, but eventually, it was done.

For instance, I wanted to add small animations for the exercises. I considered Rive, but with no animation experience, it felt too complex – even though it’s probably a great choice. That’s how I stumbled across @LottielabHQ . Their templates and smooth software helped me create.

After a while, the app basically worked for me. The workout schedule was fixed to Monday, Wednesday, and Friday, which was already my personal schedule, so I didn’t need an option to change it. But after some time, I got bored and started thinking about adding some useful.

At that time, the hardest part for me wasn’t actual errors, but when things that should work just didn’t. In those cases, AI was mostly useless. That’s when having a rough understanding of the code really helped.

At first, I used ChatGPT 4o, later o3 mini (with a short affair with DeepSeek). Manually copy-pasting only after understanding the code helped me stay in control. It also made it easier to adjust everything to my Figma layouts.

So I started again. Way simpler. Just one screen, one button. When I pressed it, the workout page opened, showing a specific exercise. I also changed how I communicated with ChatGPT – more like a teacher-student relationship.

At that time, there were already posts of people building apps with AI, so I gave ChatGPT a huge prompt describing my perfect app. And at first, it actually went well. But eventually, I ran into errors that neither ChatGPT nor my clueless self had any chance of solving.

Last year, I was using the app Freeletics. I liked the workout plan they provided but hated the community features, the challenges, the score ranking, the additional bundles, and so on… So, like every stereotypical, overconfident guy, I thought I could do it better. (Which,.

If you don’t want to read it all:.- I only used ChatGPT (o3 mini).- I started very simple and only added features when I roughly understood the code.- I designed everything in @figma .- I made the animations in @LottielabHQ.

Thanks for the kind words, feedback, and overall support regarding my first app – traina. I wanted to make a thread with some questions people were asking and a bit of overall backstory no one was asking for:

I finally finished my first app without prior coding experience. I wasn’t sure about releasing it because I initially made it just for my own use case. It’s only for people who own dumbbells but keep overcomplicating their training instead of staying consistent—aka me. So it’s

ChatGPT and I are mostly done with our little workout/yoga app, but one of us is too lazy to focus and ship the last 10%

Still amazed how fast old layouts can become actual working apps with ChatGPT. Not that the world needs another unnecessary to-do app, but still

Regarding the animation from my workout/yoga app – I made them all with @LottielabHQ . I’ve never animated before, but they made whole process surprisingly easy

Some people asked about the build process on my last post: I started with the fundamentals and gradually added features, one at a time. And I only moved forward when I fully understood the code myself. That’s also the reason I stayed with ChatGPT, because manually copy-pasting.

That’s the current look of my little workout/yoga app I built with ChatGPT. It tracks reps and weights only locally. It’s nothing fancy, but I like to open and look at it, so it works for me

Apparently, you don’t need coding experience to build apps anymore. So I made a little workout/yoga app just for me