Their AI, their servers — or yours.

What Bevel genuinely does better

Breadth. Bevel spans recovery, strain, sleep and nutrition in one polished product, pulling from a wide range of wearables. If you want a single app that covers everything with a consistent design language, it's a strong offering and the execution is good.

Zero setup friction on AI. Bevel's coach works the moment you subscribe. Metrya asks you to create an API key first — about three minutes of work, but three minutes that Bevel doesn't ask for.

Cross-platform continuity. Because your data lives in a Bevel account, it follows you across devices. Metrya's on-device model is a deliberate trade — privacy in exchange for that convenience.

Where Metrya wins

1. The AI is yours, not rented

Bevel's coach runs on a model Bevel chose, hosted on Bevel's infrastructure, paid for through Bevel's subscription. You get whatever they picked, at whatever margin they set.

Metrya's AI Advisor runs on your own key. Pick Anthropic Claude, OpenAI or Google Gemini. Switch models the day a better one ships, without waiting for an app update. Pay the provider directly at their published rates — typically under $2/month for daily use — with zero markup. Set a hard spending cap in the provider's own dashboard.

2. Your data doesn't move

Bevel needs an account, which means your health history is stored on their servers. That's what makes the cross-device experience work — but it also means a company holds a detailed, longitudinal record of your body.

Metrya has no health backend. No account, no login, no sync. Recovery, Reserve, biological age and Longevity Signals are computed on your iPhone. When you use the AI Advisor, only the relevant slice of data goes from your phone directly to your chosen provider, on your key. Nothing routes through us, because there's no "us" in the path.

3. Depth in places Bevel doesn't reach

• Body Vision — a goal photo plus a current photo become a body-composition baseline, an honest timeline and a training/nutrition plan, tracked by weekly check-in photos
• Longevity Signals — Autonomic Age from HRV vs age/sex norms, Fitness Age from VO₂max, and Sleep Longevity Risk, all computed on-device without an AI key
• Reserve — a free 0–100 energy battery that drains and recharges hour by hour, with every point movement labelled by its real cause
• Heads Up Today — local weather and air quality folded into the advice, because heat and AQI change what a sensible training day looks like

The short version

Pick Bevel if you want maximum breadth in one polished package, you're comfortable with a cloud account holding your health history, and you'd rather not think about API keys.

Pick Metrya if you want to pay once, choose your own AI model and pay for it at cost, and keep your health data on your own device permanently.

Metrya's free tier needs no key and no account, so running both for a month costs you nothing but screen space.