Shindo vs Elite HRV

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The short answer#

Elite HRV measures. Shindo does not. Elite HRV asks you to take a morning reading of one to five minutes with a chest strap or the phone camera, and gives you a Morning Readiness figure, a sympathetic-versus-parasympathetic balance, and a set of HRV metrics — plus breathing exercises and biofeedback built on top of them.

Shindo never takes a reading. HRV arrives through Apple Health from whatever device recorded it, and Shindo reads RMSSD and DFA-α1 from raw beat-to-beat intervals where they are available. That value is then one input among several — sleep, resting heart rate and the fatigue you are carrying — into readiness, and readiness is an input into the training week.

One more fact belongs up here rather than buried: as of 30 August 2026, Elite HRV’s iPhone app was last updated on 2 November 2023.

What each one is#

Elite HRV is a dedicated HRV app dating from 2014, positioned around stress, resilience and burnout rather than around sport, with a subtitle staking a claim to “true” heart-rate variability — meaning measured deliberately with a sensor rather than harvested passively from a watch. It supports chest straps and its own CorSense sensor, offers breathing and biofeedback exercises, sells one-off Premium Integrations with Strava and TrainingPeaks at $4.99 and a dark theme at $0.99, and runs a separate web dashboard and a paid platform for coaches and teams. The app itself is free and runs on iOS and Android. It holds 6,861 ratings at 4.68 on the US App Store, and it does not support Apple Watch as a source. All checked 30 August 2026.

Shindo is an iPhone app for running, cycling, swimming and triathlon, requiring an iPhone 11 or newer. It reads recovery and training data from Apple Health and computes readiness on the phone itself, alongside training stress per session and the fitness, fatigue and form curves. It builds the training week with phases, an easy/hard balance and a capped ramp; matches what you actually did against what was planned; and sets nutrition targets from the load you did. On the physiology side it derives RMSSD and DFA-α1 from raw intervals, models critical power and critical speed from your own history, adjusts pace for gradient, heat and altitude, and flags an unusual turn in your resting heart rate or HRV against your personal baseline.

Where they differ#

Elite HRV figures checked 30 August 2026 on the US storefront. Shindo’s subscription price is in its App Store listing and varies by region, so it is not reproduced here.

Measuring HRV and using HRV are different products#

Elite HRV’s whole argument is that a deliberate reading, taken the same way each morning with a proper sensor, is worth more than whatever your watch inferred while you slept. That argument is not wrong, and the discipline of a fixed morning ritual genuinely produces more comparable numbers.

Shindo takes the opposite trade knowingly: no ritual, no extra hardware, noisier input — and then puts the effort into what the number is for. A morning HRV figure on its own does not tell you whether to do the interval session; it tells you something about your autonomic state, which is only actionable next to the training load you have accumulated and the session that was planned. That is the join Shindo makes, and it is the one Elite HRV does not attempt.

If you want the concept rather than the sales pitch, the guide on HRV for endurance athletes sets out what the number can and cannot tell you, and what readiness is covers how it gets combined with everything else.

The state of the app, stated fairly#

Twelve years and 6,861 ratings are real. So is a last update in November 2023 (checked 30 August 2026), and so is a recent one- and two-star stream dominated by things not working — blank screens, unresponsive buttons, sensors that will not pair — and by people discovering only after installing that Apple Watch is not supported. The company behind it is still trading and still selling its team platform; the mobile app has simply not been touched in a while.

That is worth knowing before you build a daily habit on it, and it is worth saying without gloating: an app going quiet is not a product argument, and none of it makes Elite HRV’s measurement approach wrong.

Neither one is a medical device#

Elite HRV’s marketing language reaches towards stress, burnout and illness risk. Shindo deliberately does not: an unusual resting heart rate or HRV trend produces a flag with a plain explanation, not a diagnosis, and nothing in the app screens for or detects illness. If you are worried about your health, the answer is a doctor, not either of these apps.

Which one to pick#

Pick Elite HRV if the measurement is the point: you want a controlled morning reading with a chest strap, you want the autonomic balance breakdown that its users say nobody else shows, you want breathing exercises and biofeedback — which Shindo has none of — or you want the free educational layer around it. Pick it too if you are on Android, if you need coach or team dashboards, or if you want your readings pushed into Strava or TrainingPeaks, none of which Shindo can do.

Pick Shindo if HRV is an input rather than the product: you want it read automatically from the watch you already wear, combined with sleep, resting heart rate and accumulated fatigue into one morning verdict, and then turned into a training week that changes when the verdict does. It fits if you train across running, cycling and swimming, if you want load and form modelled rather than only recovery observed, and if you want the arithmetic published — the methodology is written out in full.

Running both is workable, if slightly redundant. Elite HRV’s own reading stays in Elite HRV; Shindo computes its readiness from Apple Health regardless, and neither app can see the other’s number. If the morning ritual suits you, keep it — just do not expect the two figures to agree, because they are not measuring the same way.

Claims about Elite HRV were checked against its public pages on the date shown above and are not warranted to stay current — pricing and features change without notice, and the vendor's own site is authoritative. Shindo is not affiliated with, endorsed by or sponsored by Elite HRV. Product names are used only to identify the products discussed. Found something out of date? Tell us and it gets corrected.

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Shindo is free on the App Store — readiness, the weekly plan and the load charts need no subscription.