Comparison

Athlytic vs Axon

Both read your Apple Watch and turn it into a recovery picture. Athlytic vs Axon comes down to one trade: Athlytic charges for coaching targets and a wider device footprint; Axon is free and stays on your iPhone and Watch.

By the Axon team · Updated 12 September 2026 · Prices are US App Store, September 2026

What each app actually computes

Athlytic's core numbers are Recovery and Exertion, built from 24/7 monitoring of HRV, resting heart rate, SpO2, respiratory rate and wrist temperature. On top of those readings it layers three coaching targets: Target Exertion (how hard to push today), Target Sleep, and Target Bed Time.

Axon computes four separate daily scores — Sleep, Recovery, Strain, and Readiness — and a fifth reading, Fit Age, derived from cardio fitness trend. Readiness is built as a live, draining "bio-recharge" arc: an overnight anchor weighted 40% from Sleep plus Recovery and activity balance, then spent down through the day by strain and topped back up by rest or naps. Recovery itself blends HRV and resting heart rate against your own 30-day baseline with sleep quality, respiratory rate and blood oxygen as smaller, deviation-gated contributors — a normal reading on those last two costs you nothing. Axon does not issue a target number to hit; it shows you where you stand and lets you decide what to do with it.

Price

Athlytic's Pro tier is $4.99/month or $29.99/year. Axon is free — no subscription, no trial, no in-app purchase currently live. Axon's code contains a dormant premium tier, but it is switched off; nothing in the app is paywalled today.

Coaching: Athlytic's real advantage

This is the category where Athlytic is genuinely ahead, and it's worth saying plainly. Target Exertion, Target Sleep and Target Bed Time turn a reading into an instruction — a specific number or window to aim for tonight and tomorrow. Axon doesn't do this. It will tell you your Readiness is 58 and show you why (the sleep, recovery and activity-balance components behind it), but it stops at the number. If what you want from a recovery app is "tell me what to do," Athlytic's coaching layer is the feature Axon does not have.

Platforms

Athlytic (version 26.6.0 at the time of writing) runs on iPhone, iPad, Apple Watch, Apple Vision Pro and Mac. Axon is iPhone with an Apple Watch — no iPad, Mac or Vision Pro app — but adds Lock Screen and Home Screen widgets and a Watch face complication so your score is visible without opening the app. If you split your time across an iPad or a Mac and want your recovery numbers there too, Athlytic covers ground Axon doesn't touch.

Privacy and on-device scoring

Axon computes all four scores on the iPhone itself; health data is not uploaded anywhere by default, and no account is required to start using the app. We don't have verified detail on Athlytic's own data-handling architecture, so if server-side processing versus on-device computation matters to you, check Athlytic's privacy policy directly rather than taking our word for either app.

Data honesty

Axon's stated rule is "real data or nothing": when a reading is missing — say the Watch wasn't worn overnight — the app shows a dash and the reason, never a filled-in number. This is a design commitment we can speak to because it's our own app; we have no verified basis to compare it against Athlytic's handling of missing data, so we won't guess.

Athlytic vs Axon at a glance

Pick Athlytic if…

• You want a specific bedtime and exertion ceiling each day, not just a score.
• You split time between iPhone, iPad, Mac or Vision Pro and want recovery data on all of them.
• $4.99/month (or $29.99/year) for a coaching layer is a reasonable trade for you.
• You value 24/7 continuous monitoring of HRV, RHR, SpO2, respiratory rate and wrist temperature as a standing dashboard, not just a daily readout.

Pick Axon if…

• You want the four core scores — Sleep, Recovery, Strain, Readiness — for free, indefinitely.
• You live entirely on iPhone and Apple Watch and don't need an iPad, Mac or Vision Pro app.
• On-device scoring and no required account matter to you.
• You'd rather see the honest number and the reasoning behind it than be told what target to hit.

Who should NOT pick Axon

If you want a coach that tells you a specific bedtime or exertion ceiling rather than a score to interpret yourself, Axon will frustrate you — that's Athlytic's job, and it does it well. Same if you use an iPad, Mac or Vision Pro regularly and want your recovery data to follow you there: Axon is iPhone and Watch only. And if continuous 24/7 vital monitoring as a running dashboard (rather than a once-a-day score) is what you're after, Athlytic's feature set is built for exactly that. In all three cases, paying $4.99/month for Athlytic buys you something Axon genuinely does not offer.