# Kubios HRV - Daily Readiness — Heart rate variability > HRV analysis for daily readiness, stress monitoring, and custom physiological recordings. (iPhone/iPad app by Kubios Oy.) - Source: https://appshunter.io/ios/app/kubios-hrv-daily-readiness/id1463040412 (this page in markdown: same URL + `.md`) - Developer: [Kubios Oy](https://appshunter.io/developer/1463040411) - Category: Health & Fitness - Price: Free - Rating: 4.63/5 from 146 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 45 MB - Languages: English - Released: 2020-11-15 - Data updated: 2026-08-29 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kubios-hrv-daily-readiness/id1463040412/reviews.md ## What is Kubios HRV? Heart rate variability (HRV) based daily readiness and custom HRV recordings. Kubios HRV app uses scientifically validated heart rate variability (HRV) algorithms (used by scientists all over the world) to provide reliable information about your wellbeing and daily readiness. To make HRV measurements with the app, you need a Bluetooth heart rate (HR) sensor, such as Polar H10. Kubios HRV app has two modes of operation: 1) Readiness Measurement Mode monitors changes in your daily readiness status. By doing short (1-5 min), controlled resting HRV measurements regularly, you will receive reliable information about your physiological recovery and/or stress, how it changes from day to day, and how your HRV values compare with normal population values. Readiness monitoring is used by professional athletes in training optimization but can also be used by sports enthusiasts or anyone interested in their wellbeing, as it provides objective information about overall bodily stress as well as cardiovascular health. 2) Custom Measurement Mode, designed for researchers, health and wellbeing professionals, and sport scientists, conducts various types of HRV recordings. This measurement mode supports test-subject management, short- and longer-term measurements, live data acquisition, as well as event markers. Since the app is built with Polar mobile SDK, it can read live data from Polar sensors, including electrocardiogram (ECG) and heart beat interval (RR) data from Polar H10 sensors and live photoplethysmogram (PPG) and inter-pulse interval (PPI) data from optical Polar OH1 and Verity Sense sensors. Thus, when used together with these Polar sensors, the custom measurement mode provides an easy-to-use, light-weight, affordable way to obtain ECG, PPG and RR/PPI recordings. Regarding RR recording, the app also supports other Bluetooth HR sensors available on the market. Kubios HRV software license, which supports this measurement mode is required to store measurement data. HRV is a reliable measure of autonomic nervous system (ANS). It tracks the beat-to-beat changes in RR interval arising from the continuous regulation of heart rate by the sympathetic and parasympathetic branches of the ANS. Kubios HRV analysis algorithms have achieved gold-standard status in scientific research, and our software products are used at roughly 1200 universities in 128 countries. The main HRV parameters include the parasympathetic nervous system (PNS) and sympathetic nervous system (SNS) indexes, the computations of which have been optimized, using a large reservoir of scientific research results, to provide accurate interpretation of recovery and stress. ## Key features - Daily readiness monitoring - Custom HRV recordings - Scientifically validated algorithms - Physiological recovery and stress tracking - Comparison to population norms - Support for Polar HR sensors ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/kubios-hrv-daily-readiness/id1463040412/reviews.md ### 5/5 — Good app, 2 potential features to make it amazing *2026-06-13* I use the iPhone accelerometer-based readiness measurement every morning. I’d love Apple Health integration and Shortcuts/App Intents support. Ideally I could trigger a readiness measurement from a Shortcut and automatically write the resulting HRV value to Apple Health without taking screenshots. But other than it does the job well and for free ### 5/5 — great! *2026-05-19* please consider an option to sync with apple health **Developer response:** Thanks for the 5 stars! We've passed your request for Apple Health integration along to our development team. ### 1/5 — Scores are completely off *2026-01-07* I was using this app for about two weeks with the Apple Watch paired with the H10 polar strap, and the scores were completely opposite on how I felt. I also was also trying Elite HRV and Sleep2. They were much more in sync with my readiness after good nights and bad night of sleep and stress. **Developer response:** Thank you for your feedback, and we’re sorry to hear about your experience. Readiness scores can sometimes feel inconsistent during the first couple of weeks, as the app needs enough data to establish your personal baseline. After a few weeks of regular use, the scores typically become much more accurate and reflective of your true recovery and stress levels. ### 4/5 — Tweak UI *2025-12-17* Interface for the mobile app needs to have the option to utilize the dark mode. Or at change it to a a dark background **Developer response:** Thank you for your feedback. The Kubios mobile app does support Dark Mode. The app follows your phone’s system appearance settings, so please make sure Dark Mode is enabled in your device’s system settings and that you’re using the latest version of the app. If you’re still unable to enable Dark Mode, please contact us at support@kubios.com with your phone model and operating system version, and we’ll be happy to help. ### 1/5 — Doesn’t pair with sensor *2025-09-27* Doesn’t pair with sensor. Said to use the Polar H10. Paid over $100.00 for it and cant get it to work with the app. Works with other apps. I was really looking forward to trying this out too. **Developer response:** Sorry to hear about your experience. Please contact us at support@kubios.com, so we can help you resolve the connection issue with your sensor. ### 4/5 — Pretty accurate *2025-08-20* Use this and three other apps with HRV All four can be way different Do sometime of day each morning Mot completely sold on how well they predict recovery. But Kubios seems to be most accurate ### 5/5 — Estoy agradecida por haber arreglado el problema de la última actualización *2025-08-20, version 1.7.8* Desde la última actualización fue mal, daba error y no podía hacer medidas, mandé un email y lo han solucionado, hoy ya he podido hacer medidas ### 3/5 — Help *2025-04-21* I want to use this app, but I can’t seem to register. How to register? Is this app still supported? ### 5/5 — Buena *2024-05-19, version 1.4.2* Se sincroniza con Polar h10👍🏻. Por lo tanto los resultados son más precisos, buscaba una app así. Los análisis completos. Que mejoraría o agregaría yo: 1) Posibilidad de estar conectado (que lo hace) mientras se ven las pulsaciones. Algo así como un monitor que mide la presión arterial. En resumen números más grandes y centrados, cómodos para ir viendo tu frecuencia sin tener que acercarte. 2) Idioma castellano (Spanish 🙏🏼) 3) Opción para usarla al estar dormido (toda la noche) de esta manera ver la variación con respecto a las horas, fc media, fc Máxima y fc mínima. Interesante sería ver en un gráfico la línea con respecto a las medidas. 4) Hay que pagar? 👍🏻. Ok. Un único pago 🙏🏼 Gracias. ### 4/5 — Apple health *2024-02-05* How do I connect KubiosHRV to apple health? Does not seem to appear in any data provider menu. ## Frequently asked questions about Kubios HRV ### What is Kubios HRV used for? Kubios HRV is used to monitor daily readiness and physiological stress through heart rate variability (HRV) analysis. It helps users understand their recovery status and compare their HRV values to population norms. ### Does Kubios HRV require a heart rate sensor? Yes, to make HRV measurements with Kubios HRV, you need a Bluetooth heart rate sensor, such as a Polar H10, Polar OH1, or Verity Sense. ### What are the two modes of operation in Kubios HRV? Kubios HRV has a Readiness Measurement Mode for personal monitoring of daily readiness and a Custom Measurement Mode designed for researchers and health professionals for various HRV recordings. ### Is Kubios HRV suitable for professional athletes? Yes, the readiness monitoring feature is used by professional athletes for training optimization. It provides objective information about overall bodily stress and cardiovascular health. ### Can Kubios HRV be used for research purposes? Yes, the Custom Measurement Mode is specifically designed for researchers, health and wellbeing professionals, and sport scientists, supporting test-subject management and live data acquisition. ### What kind of data can Kubios HRV collect with Polar sensors? When used with Polar sensors like H10, OH1, and Verity Sense, Kubios HRV can read live electrocardiogram (ECG), heart beat interval (RR), photoplethysmogram (PPG), and inter-pulse interval (PPI) data. ### How accurate are the HRV analysis algorithms in Kubios HRV? Kubios HRV uses scientifically validated HRV algorithms that have achieved gold-standard status in scientific research and are used at approximately 1200 universities worldwide. ### What devices is Kubios HRV available on? Kubios HRV is available on iPhone, iPad, and iPod, as indicated by its support for these devices. ## Version history (last 5 releases) ### 1.8.14 — 2026-06-22 - Improved long-term stability - Enhanced sensor connectivity - Improved time synchronization between channels ### 1.8.13 — 2026-05-19 - Improved long-term stability - Enhanced sensor connectivity - Improved time synchronization between channels ### 1.7.13 — 2025-09-05 – Added support for sensorless, accelerometer-based HRV readiness measurement (beta) — monitor your stress and recovery without a heart rate sensor. – Performance improvements and minor bug fixes. ### 1.7.12 — 2025-08-25 – Added support for sensorless, accelerometer-based HRV readiness measurement (beta) — monitor your stress and recovery without a heart rate sensor. – Performance improvements and minor bug fixes. ### 1.7.8 — 2025-08-14 – Added support for sensorless, accelerometer-based HRV readiness measurement (beta) — monitor your stress and recovery without a heart rate sensor. – Performance improvements and minor bug fixes. ## Apps similar to Kubios HRV | App | Rating | Price | Category | | --- | --- | --- | --- | | [Ravs Fitness](https://appshunter.io/ios/app/ravs-fitness/id1613306660) | — | Free | Health & Fitness | | [Jersey Fitness](https://appshunter.io/ios/app/jersey-fitness/id1614656140) | 3.8 (4) | Free | Health & Fitness | | [Мир фитнеса](https://appshunter.io/ios/app/id1605059060) | — | Free | Health & Fitness | | [Farmácia Rosário](https://appshunter.io/ios/app/farmacia-rosario/id1604958600) | — | Free | Health & Fitness | | [Fox River MedSpa](https://appshunter.io/ios/app/fox-river-medspa/id1618493940) | — | Free | Health & Fitness | | [Stephitness](https://appshunter.io/ios/app/stephitness/id1617777860) | 4.7 (17) | Free | Health & Fitness | ## Related topics [kubios hrv](https://appshunter.io/ios/topics/kubios-hrv) · [kubios](https://appshunter.io/ios/topics/kubios) · [kubios oy](https://appshunter.io/ios/topics/kubios-oy) · [elite hrv](https://appshunter.io/ios/topics/elite-hrv) · [biosign hrv](https://appshunter.io/ios/topics/biosign-hrv) · [elite hvr](https://appshunter.io/ios/topics/elite-hvr) · [heart rate variability](https://appshunter.io/ios/topics/heart-rate-variability) · [narrativelab ou](https://appshunter.io/ios/topics/narrativelab-ou) · [readiness](https://appshunter.io/ios/topics/readiness) · [hrv](https://appshunter.io/ios/topics/hrv) · [hrv improve](https://appshunter.io/ios/topics/hrv-improve) · [hrv4training](https://appshunter.io/ios/topics/hrv4training) · [hrv app](https://appshunter.io/ios/topics/hrv-app) · [fitlabcardiocheck](https://appshunter.io/ios/topics/fitlabcardiocheck) · [rizzosalus](https://appshunter.io/ios/topics/rizzosalus) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*