Hi guys!

I'm redesigning the design of my iOS app for health monitoring and offering in-app workouts.

Currently using layout 1 attached. What doesn't convince me today is the mixed use of flat and glass and I would like to bring everything back inside the flat style, which is central in the app.

I have prepared some variants that sacrifice the full screen video in favor of greater reading. I would like to have some feedback from your side :)

I'm still torn whether to insist on the first version (which I like but loses readability in the cardio part, which maybe I can solve simply by putting everything black there too) or cut everything?

Hi r/iOSApps - I'm Stefano, the creator of SuperAge.

The last time I shared the app here, this community picked apart some of our decisions. It helped. So this time, we're opening something more important: the engine behind our Fitness Age (aka SuperAge).

SuperAge Core is now open source

We've published SuperAge – Core, an open-source Swift package under Apache 2.0.

It contains the formulas that turn activity, cardiovascular fitness, recovery, body composition, and lifestyle inputs into a Fitness Age result. You can inspect the weights, missing-data handling, confidence, score-to-age conversion, and tests - then challenge a choice or propose a better one.

To be clear: the entire SuperAge app is not open source. The UI, HealthKit layer, Apple Watch app, and our other scores remain proprietary. We started with the part where transparency matters most. The current app source uses the same 0.4.0 release.

The public repository is new, so don't judge it by stars or age. Judge it by the code, methodology, and 51 tests across 9 suites.

And yes, we used AI-assisted coding tools. They helped us extract existing logic from our private codebase, separate it, document it, and test it faster. AI did not invent the methodology, and no generative model calculates your score at runtime. The decisions remain ours; the core is now open to inspection.

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There are already excellent apps in this space, including Athlytic, Bevel, and Gentler Streak. Each takes a different approach.

What we want SuperAge to add is simple: you can see how we reached the result.

That same idea has shaped our recent releases:

• Developer Mode, with a documented local API, pairing, and revocable access;
• workouts shared and imported through links or QR codes;
• results available through Siri and Shortcuts;
• separate consent and on-device processing for cycle and menopause data;
• clearer labels for estimates and missing data.

Developer Mode is not part of the open-source repository. It reflects the same principle: more user control, clearer boundaries, and fewer black boxes.

SuperAge is a fitness and wellness product — not a diagnosis or medical device.

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SuperAge is free to download and includes an initial Biological Age assessment. US Premium pricing is:

• $4.99/month
• $49.99/year
• App Store: https://apps.apple.com/us/app/superage-biological-age/id6751951815
• SuperAgeCore: https://github.com/superageapp/ios-core
• Developer API: https://dev.superage.app
• Official Subreddit: r/superage
• Privacy: https://superage.app/privacy
• Terms: https://superage.app/terms

If you could audit one part first, what would it be: metric weights, missing-data handling, or score-to-age conversion?

I’ll be around to answer questions and hear what you think.

Aujourd’hui visite d’une grotte sympathique dans le sud de la France.
Nous y avons vu de nombreux stalactites, d’autres stalagmites et même un très rare stalacbite.
La nature est formidable