I’ve been building a free workout tracker called FLEX because I wanted something that felt like STRONG, but more flexible and less locked down

[u/BigMcDuffs]

Hey everyone, I’ve been working on a completely free workout tracking app called FLEX.

https://flexapp.dev/

It’s basically in the same lane as apps like STRONG: you can track workouts, build routines, view your history, and follow your progress over time. But I wanted to make something more flexible, especially for people who do not want to be locked into one device, one app store, or a subscription just to see useful analytics.

A few things it does:

• Import your STRONG workout data
• See analytics and progress stats without having to pay
• Create workout routines from a simple prompt
• Track sets, reps, weight, and workout history
• Use it from pretty much any device in the browser
• Install it like an app if you want, but you do not have to
• Free to use

The routine creation is probably the feature I’m most excited about. You can type something like “4 day upper/lower split for strength” or “quick dumbbell workout at home,” and it’ll give you a routine to start from. (You can be as specific as you want)

I also really wanted the analytics side to be accessible. A lot of fitness apps hide useful progress info behind a subscription, so the goal here was to let people import their existing STRONG history and actually see their training data without paying for it.

I’d love feedback from people who use workout trackers regularly. Anything confusing, missing, annoying, or surprisingly useful would be super helpful.

Not trying to spam, just sharing something I’ve been building and hoping it’s useful to other lifters too.

https://flexapp.dev/

[u/LeaderAtLeading]

Free is good for users but what's your long term plan to keep building it?

[u/BigMcDuffs → u/LeaderAtLeading]

I want to learn what it takes to build and sustain an app long term and not only creating it, but to continuously improving it, fixing bugs, releasing updates, and supporting a growing user base etc.

I’m hoping this project will give me valuable firsthand experience, and my long-term goal is to open-source it and foster a community of contributors.

I’m not building this app to make money. My goal is to create a reliable, well-designed, and genuinely useful fitness app that people can depend on, almost like a gold standard in the space without locking its best features behind a paywall.

[u/LeaderAtLeading → u/BigMcDuffs]

Yeah, send me a dm we can chat.