---
title: "HRV4Training - Отзывы, Доход и Загрузки приложения in Франция | Apple App Store"
description: "The first scientifically validated Heart Rate Variability (HRV) app. HRV4Training provides HRV based insights to help you quantify stress, better balance training and lifestyle, and improve performanc"
---

# HRV4Training — Франция

![HRV4Training App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f1/ed/a9/f1eda929-f16c-ae2f-ce1d-08a4b215b667/AppIcon-0-0-1x_U007ephone-0-8-0-85-220.png/434x0w.png)

**Developer:** [A.S.M.A](https://apptail.io/ru/developer/asma-OgS)
**Category:** Health Fitness
**Rating:** 3.8/5 (31 ratings)
**Price:** Free
**Bundle ID:** HRV4Training
**Store:** Apple App Store
**Country:** Франция
**Version:** 8.6.3 (released 2026-05-25)
**Original Release:** 2013-08-14
**Languages:** English, Italian, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/fr/app/app/id686923970)
**AppTail Page:** [https://apptail.io/ru/app/hrv4training-VoQ/france](https://apptail.io/ru/app/hrv4training-VoQ/france)

## HRV4Training Description
The first scientifically validated Heart Rate Variability (HRV) app. HRV4Training provides HRV based insights to help you quantify stress,
better balance training and lifestyle, and improve performance. HRV4Training does not require a heart rate monitor, since it can accurately assess your HRV using the phone's camera. 

HRV4Training also works with Apple Watch, the Oura ring and all compatible Bluetooth SMART sensors.

HRV4Training is also the first app that goes beyond simple measurements and provides insights on:
1) acute or day to day HRV changes in response to different stressors (alcohol, travel, sick days, training, menstruation, etc.) 
2) long term multi-parameter trends to look at the big picture 
3) correlations between physiological measurements and annotations 
4) training load analysis, fitness, fatigue, readiness to perform and injury risk 
5) VO2max estimation for runners linking the app to Strava or TrainingPeaks and using a heart rate monitor during their workouts
6) Training Polarization analysis (or 80/20) 
7) Lactate Threshold Estimation for runners linking the app to Strava or TrainingPeaks and using a heart rate monitor during their workouts
8) Weekly and monthly summaries to track progress. 

All data is processed inside the app in order to provide you with actionable interpretations that can help optimizing your training plan and performance.

Supported devices for the camera measurement: iPhones 5, 5S, 6, 6S, 6+, 6S+, SE, 7, 7+, 8, 8+, X, XS, XS Max, XR, 11, 11 Pro, 11 Pro Max, 12 mini, 12, 12 Pro, 12 Pro Max, 13 mini, 13, 13 Pro, 13 Pro Max, 14, 14 Plus, 14 Max, 14 Pro, 15, 15 Max, 15 Pro, 16, 16 Max, 16 Pro

Currently unsupported devices for the camera measurement: iPhones 4S, iPads and iPods - These devices require a chest strap.

Other features: 
- HRV-based advice helps you to adapt your trainings based on objective measures of recovery
- TAGS: lets you tag your sleep, mental energy, muscle fatigue, stress and all other parameters that can help you understand what is influencing your physical condition and physiological stress
- Works with Bluetooth SMART heart rate monitors (a Polar H7 is recommended) or simply your phone's Camera
- Integrates with the Health app (writes heart rate, and sleep, read sleep time)
- Configurable test (single or orthostatic, choose test duration between 1, 3 or 5 minutes)
- Extracts and stores the following features while lying down and/or standing: heart rate, mean of beat-to-beat intervals (AVNN), standard deviation of beat-to-beat intervals (SDNN), square root of the mean squared difference of successive R-Rs (rMSSD), number of pairs of successive R-Rs that differ by more than 50 ms (pNN50), low frequency power (LF, 0.04-0.15 Hz), high frequency power (HF, 0.15-0.40 Hz)
- Shows the PPG signal view to ensure signal quality during the test if the camera is used instead of a bluetooth SMART sensor
- HRV4T Recovery Points to provide a single, straightforward metric to analyze your physical condition
- Population summaries and people like you comparisons to put your data into perspective
- Analysis of compliance and consistency 
- Data export via email or Dropbox
- Integrates with TrainingPeaks, Oura, Strava and Coros

HRV4Training requires to register an account with your email address, so that your data can be backed up safely and retrieved in case anything happens (app issue, changing phone, etc.).

HRV4Training does not provide medical advice. It is intended for informational purposes only. Consult a medical professional before making health or lifestyle decisions.

Please find an overview of the relevant scientific literature in our guide, here: 

## HRV4Training Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/d7/ff/86/d7ff860f-82ef-0dc4-e4ac-e77214718410/85f6c59f-578a-4959-9ef3-3d9bb1aa99fb_6.5-inch_Screenshot_1.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/de/7e/63/de7e6337-b53f-33b9-3a4b-c78af0b49f06/e22a7f75-25ec-4464-aedc-a719789ca43a_6.5-inch_Screenshot_2.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/db/71/e5/db71e5f2-335b-10c7-728a-262da46c51e4/722cf995-8ec2-489e-8809-d0957e45d48f_6.5-inch_Screenshot_3.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/a4/a0/92/a4a09214-f202-8a3b-1f14-84ebc1bb6006/e50ad6f8-7791-4885-9bd9-9800433d7aa2_6.5-inch_Screenshot_4.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/d3/9c/40/d39c40b4-dfa4-cbbe-ba7c-155df8cf75e7/8e0e9b89-fb5d-41d8-a545-8b8eef82288c_6.5-inch_Screenshot_5.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/38/79/a4/3879a473-e03d-c0cd-9d6f-bb33267eb6fd/05abfe40-30c5-47a7-a742-8f929de1c00e_6.5-inch_Screenshot_6.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/f9/94/19/f994196e-b2e0-780d-4626-c6d847beca10/bf9f50f8-4045-4dc8-9c53-29d400b06aee_6.5-inch_Screenshot_7.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/54/1b/39/541b39ac-c4e8-03b1-d5b6-abe687232ef4/a3bac4cf-480f-4bc1-897d-b94e2e8e697a_6.5-inch_Screenshot_8.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/8a/3e/87/8a3e8784-7797-0150-17e7-33b079b8f4a9/c5adb5bb-6096-4087-9c9a-52411bc1084e_6.5-inch_Screenshot_9.png/1242x2688.png)

## HRV4Training Rating Breakdown in Франция
- 5 stars: 21 (68%)
- 4 stars: 0 (0%)
- 3 stars: 2 (6%)
- 2 stars: 0 (0%)
- 1 stars: 8 (26%)

## HRV4Training Reviews in Франция

### ***-- "The app doesn't sync anymore"
The app doesn't sync anymore with the data form Oura.
-- Gabriel Tun, 2023-12-17

### *---- "Big problem with latest update!"
The screen size does not fit the screen of my iPhone 11 Pro anymore, some buttons are out of screen, no longer accessible, App became useless ! 10 February 2022
-- hansenpro, 2022-02-10

### ***** "Belle mise à jour"
Toujours efficace et la nouvelle interface est bien plus pratique
-- FGO , 2021-05-17

### ***** "Excellent"
Very useful and developper very reactive
-- Phx999, 2020-12-17

### ***-- "Great and smart apps"
Very nice looking apps. Very good integration with Training platform like Strava ...
It is just a shame that we are forced to use Strava and cannot connect our app gears like Garmin , Suunto or Polar ! Having a connection to such app would be much better as for instance Strava is preventing to have running power infos pushed to HRV
-- pipiche, 2019-12-19

### ***** "Premiers tests intéressants"
Enfin un retour physiologique sur le TrainingStressBalance telle que calculé par TrainingPeaks. Si l’utilité de la mesure HRV se confirme alors c’est le complément pour piloter au quotidien la planification annuelle et périodique en TSS.
-- azerty_qwerty, 2019-04-22

### *---- "appli peut-être complète mais déçu"
bien trop cher, les développeurs ne se donnent pas la peine de traduire en français en m’oblige à utiliser google traduction, c’est une application à 11€, faudrait quand même pas pousser, où est la complication watch? 

pour le moment peu de données exploitable, en espérant qu’avec le temps elle finira par devenir indispensable, pour le prix c’est un minimum. 

le prix ne se justifie pas, sachant que l’watch mesure la HRV via l’appli respirer. 

déçu de cet achat, le développeur fait un effort pour vendre sur l’appstore france, la moindre des choses c’est qu’elle soit traduite, j’ai fait l’effort de la lui payer (trop cher)...
-- maxomini, 2018-09-15

### ***** "Addictif et passionnant !!!"
Application très bien faite, et échanges avec les développeurs très rapides en cas de besoin.
Il faut attendre quelques semaines avant de pouvoir accéder à toutes les fonctions d’analyse (l’application a besoin de données pour travailler), et ensuite le champ d’investigation est large. 
Dans mon cas l’application récupère automatiquement les entraînements dans TrainingPeaks.
La mesure quotidienne est rapide et facile à faire, elle permet de suivre le pouls au repos et la variabilité cardiaque, à chacun ensuite de découvrir des liens entre les mesures et les renseignements fournis (stress, forme, fatigue, etc ...).
Bref, pour ceux qui s’intéressent un peu au sujet, c’est passionnant, et cette application est précieuse !!!
-- ceol61, 2017-11-13

[View all HRV4Training reviews and detailed analytics on AppTail](https://apptail.io/ru/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## HRV4Training Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Топ платных | Италия | Health Fitness | #4 |
| Топ платных | Франция | Health Fitness | #7 |
| Топ платных | Австралия | Health Fitness | #8 |
| Топ платных | Бельгия | Health Fitness | #9 |
| Топ платных | Тайвань | Health Fitness | #9 |
| Топ платных | Колумбия | Health Fitness | #11 |
| Топ платных | Польша | Health Fitness | #11 |
| Топ платных | Эквадор | Health Fitness | #13 |
| Топ платных | Испания | Health Fitness | #13 |
| Топ платных | Новая Зеландия | Health Fitness | #13 |
| Топ платных | Германия | Health Fitness | #14 |
| Топ платных | Финляндия | Health Fitness | #14 |
| Топ платных | Турция | Health Fitness | #15 |
| Топ платных | Португалия | Health Fitness | #15 |
| Топ платных | Перу | Health Fitness | #15 |
| Топ платных | Чили | Health Fitness | #17 |
| Топ платных | Норвегия | Health Fitness | #17 |
| Топ платных | Аргентина | Health Fitness | #18 |
| Топ платных | Австрия | Health Fitness | #19 |
| Топ платных | Соединенные Штаты | Health Fitness | #19 |
| Топ платных | Южно-Африканская Республика | Health Fitness | #21 |
| Топ платных | Нидерланды | Health Fitness | #21 |
| Топ платных | Великобритания | Health Fitness | #21 |
| Топ платных | Канада | Health Fitness | #23 |
| Топ платных | Чехия | Health Fitness | #25 |
| Топ платных | Япония | Health Fitness | #26 |
| Топ платных | Венгрия | Health Fitness | #26 |
| Топ платных | Ирландия | Health Fitness | #28 |
| Топ платных | Греция | Health Fitness | #28 |
| Топ платных | Румыния | Health Fitness | #29 |
| Топ платных | Гонконг (САР) | Health Fitness | #30 |
| Топ платных | Филиппины | Health Fitness | #30 |
| Топ платных | Египет | Health Fitness | #32 |
| Топ платных | Доминиканская Республика | Health Fitness | #32 |
| Топ платных | Украина | Health Fitness | #32 |
| Топ платных | Индия | Health Fitness | #34 |
| Топ платных | Сингапур | Health Fitness | #34 |
| Топ платных | ОАЭ | Health Fitness | #34 |
| Топ платных | Италия | Overall | #35 |
| Топ платных | Бразилия | Health Fitness | #38 |
| Топ платных | Израиль | Health Fitness | #40 |
| Топ платных | Пакистан | Health Fitness | #41 |
| Топ платных | Казахстан | Health Fitness | #42 |
| Топ платных | Вьетнам | Health Fitness | #45 |
| Топ платных | Мексика | Health Fitness | #51 |
| Топ платных | Беларусь | Health Fitness | #51 |
| Топ платных | Саудовская Аравия | Health Fitness | #53 |
| Топ платных | Малайзия | Health Fitness | #54 |
| Топ платных | Таиланд | Health Fitness | #54 |
| Топ платных | Швейцария | Health Fitness | #59 |
| Топ платных | Дания | Health Fitness | #60 |
| Топ платных | Индонезия | Health Fitness | #65 |
| Топ платных | Швеция | Health Fitness | #70 |
| Топ платных | Алжир | Health Fitness | #70 |
| Топ платных | Кувейт | Health Fitness | #70 |
| Топ платных | Республика Корея | Health Fitness | #75 |
| Топ платных | Австралия | Overall | #82 |
| Топ платных | Россия | Health Fitness | #87 |
| Топ платных | Ливан | Health Fitness | #95 |
| Топ платных | Китай | Health Fitness | #99 |
| Топ платных | Новая Зеландия | Overall | #151 |
| Топ платных | Нигерия | Health Fitness | #152 |
| Топ платных | Тайвань | Overall | #152 |
| Топ платных | Франция | Overall | #165 |
| Топ платных | Эквадор | Overall | #185 |
| Топ платных | Германия | Overall | #193 |
| Топ платных | Испания | Overall | #193 |
| Топ платных | Бельгия | Overall | #206 |
| Топ платных | Финляндия | Overall | #207 |
| Топ платных | Колумбия | Overall | #211 |

## HRV4Training Discovered Keywords
- hrv4training

## Apps Similar to HRV4Training
- [TrainingPeaks: Plan Train Lift](https://apptail.io/ru/app/trainingpeaks-plan-train-lift-UW/france)
- [Elite HRV: Wellness & Fitness](https://apptail.io/ru/app/elite-hrv-wellness-fitness-sUe/france)
- [HealthFit](https://apptail.io/ru/app/healthfit-fml/france)
- [Kubios HRV - Daily Readiness](https://apptail.io/ru/app/kubios-hrv-daily-readiness-zOr/france)
- [Training Today](https://apptail.io/ru/app/training-today-SYu/france)
- [CORE Thermal Sensor](https://apptail.io/ru/app/core-thermal-sensor-dQv/france)
- [TrainerRoad](https://apptail.io/ru/app/trainerroad-XKH/france)
- [FORM Swim](https://apptail.io/ru/app/form-swim-srQ/france)
- [Supersapiens](https://apptail.io/ru/app/supersapiens-trQ/france)
- [Favero Assioma](https://apptail.io/ru/app/favero-assioma-VbS/france)

## HRV4Training Available In
- [Соединенные Штаты](https://apptail.io/ru/app/hrv4training-VoQ/united-states)
- [Италия](https://apptail.io/ru/app/hrv4training-VoQ/italy)
- [Великобритания](https://apptail.io/ru/app/hrv4training-VoQ/united-kingdom)
- [Германия](https://apptail.io/ru/app/hrv4training-VoQ/germany)
- [Испания](https://apptail.io/ru/app/hrv4training-VoQ/spain)
- [Канада](https://apptail.io/ru/app/hrv4training-VoQ/canada)
- [Австралия](https://apptail.io/ru/app/hrv4training-VoQ/australia)
- [Нидерланды](https://apptail.io/ru/app/hrv4training-VoQ/netherlands)
- [Франция](https://apptail.io/ru/app/hrv4training-VoQ/france)
- [Швейцария](https://apptail.io/ru/app/hrv4training-VoQ/switzerland)
- [Бразилия](https://apptail.io/ru/app/hrv4training-VoQ/brazil)
- [Финляндия](https://apptail.io/ru/app/hrv4training-VoQ/finland)
- [Швеция](https://apptail.io/ru/app/hrv4training-VoQ/sweden)
- [Польша](https://apptail.io/ru/app/hrv4training-VoQ/poland)
- [Южно-Африканская Республика](https://apptail.io/ru/app/hrv4training-VoQ/south-africa)
- [Китай](https://apptail.io/ru/app/hrv4training-VoQ/china)
- [Австрия](https://apptail.io/ru/app/hrv4training-VoQ/austria)
- [Чехия](https://apptail.io/ru/app/hrv4training-VoQ/czechia)
- [Норвегия](https://apptail.io/ru/app/hrv4training-VoQ/norway)
- [Бельгия](https://apptail.io/ru/app/hrv4training-VoQ/belgium)
- [Россия](https://apptail.io/ru/app/hrv4training-VoQ/russia)
- [Ирландия](https://apptail.io/ru/app/hrv4training-VoQ/ireland)
- [Индия](https://apptail.io/ru/app/hrv4training-VoQ/india)
- [Сингапур](https://apptail.io/ru/app/hrv4training-VoQ/singapore)
- [Португалия](https://apptail.io/ru/app/hrv4training-VoQ/portugal)
- [Новая Зеландия](https://apptail.io/ru/app/hrv4training-VoQ/new-zealand)
- [Чили](https://apptail.io/ru/app/hrv4training-VoQ/chile)
- [Украина](https://apptail.io/ru/app/hrv4training-VoQ/ukraine)
- [Греция](https://apptail.io/ru/app/hrv4training-VoQ/greece)
- [Тайвань](https://apptail.io/ru/app/hrv4training-VoQ/taiwan)
- [Гонконг (САР)](https://apptail.io/ru/app/hrv4training-VoQ/hong-kong)
- [Венгрия](https://apptail.io/ru/app/hrv4training-VoQ/hungary)
- [Словакия](https://apptail.io/ru/app/hrv4training-VoQ/slovakia)
- [Дания](https://apptail.io/ru/app/hrv4training-VoQ/denmark)
- [Румыния](https://apptail.io/ru/app/hrv4training-VoQ/romania)
- [Колумбия](https://apptail.io/ru/app/hrv4training-VoQ/colombia)
- [Аргентина](https://apptail.io/ru/app/hrv4training-VoQ/argentina)
- [Мексика](https://apptail.io/ru/app/hrv4training-VoQ/mexico)
- [Турция](https://apptail.io/ru/app/hrv4training-VoQ/turkey)
- [Малайзия](https://apptail.io/ru/app/hrv4training-VoQ/malaysia)
- [Япония](https://apptail.io/ru/app/hrv4training-VoQ/japan)
- [Эквадор](https://apptail.io/ru/app/hrv4training-VoQ/ecuador)
- [Израиль](https://apptail.io/ru/app/hrv4training-VoQ/israel)
- [ОАЭ](https://apptail.io/ru/app/hrv4training-VoQ/united-arab-emirates)
- [Республика Корея](https://apptail.io/ru/app/hrv4training-VoQ/south-korea)
- [Словения](https://apptail.io/ru/app/hrv4training-VoQ/slovenia)
- [Таиланд](https://apptail.io/ru/app/hrv4training-VoQ/thailand)
- [Египет](https://apptail.io/ru/app/hrv4training-VoQ/egypt)
- [Хорватия](https://apptail.io/ru/app/hrv4training-VoQ/croatia)
- [Армения](https://apptail.io/ru/app/hrv4training-VoQ/armenia)
- [Люксембург](https://apptail.io/ru/app/hrv4training-VoQ/luxembourg)
- [Болгария](https://apptail.io/ru/app/hrv4training-VoQ/bulgaria)
- [Шри-Ланка](https://apptail.io/ru/app/hrv4training-VoQ/sri-lanka)
- [Мальта](https://apptail.io/ru/app/hrv4training-VoQ/malta)
- [Литва](https://apptail.io/ru/app/hrv4training-VoQ/lithuania)
- [Уругвай](https://apptail.io/ru/app/hrv4training-VoQ/uruguay)
- [Эстония](https://apptail.io/ru/app/hrv4training-VoQ/estonia)
- [Исландия](https://apptail.io/ru/app/hrv4training-VoQ/iceland)
- [Вьетнам](https://apptail.io/ru/app/hrv4training-VoQ/vietnam)
- [Непал](https://apptail.io/ru/app/hrv4training-VoQ/nepal)
- [Оман](https://apptail.io/ru/app/hrv4training-VoQ/oman)
- [Панама](https://apptail.io/ru/app/hrv4training-VoQ/panama)
- [Перу](https://apptail.io/ru/app/hrv4training-VoQ/peru)
- [Филиппины](https://apptail.io/ru/app/hrv4training-VoQ/philippines)
- [Пакистан](https://apptail.io/ru/app/hrv4training-VoQ/pakistan)
- [Алжир](https://apptail.io/ru/app/hrv4training-VoQ/algeria)
- [Катар](https://apptail.io/ru/app/hrv4training-VoQ/qatar)
- [Доминиканская Республика](https://apptail.io/ru/app/hrv4training-VoQ/dominican-republic)
- [Кипр](https://apptail.io/ru/app/hrv4training-VoQ/cyprus)
- [Саудовская Аравия](https://apptail.io/ru/app/hrv4training-VoQ/saudi-arabia)
- [Беларусь](https://apptail.io/ru/app/hrv4training-VoQ/belarus)
- [Бруней](https://apptail.io/ru/app/hrv4training-VoQ/brunei)
- [Бахрейн](https://apptail.io/ru/app/hrv4training-VoQ/bahrain)
- [Суринам](https://apptail.io/ru/app/hrv4training-VoQ/suriname)
- [Тунис](https://apptail.io/ru/app/hrv4training-VoQ/tunisia)
- [Барбадос](https://apptail.io/ru/app/hrv4training-VoQ/barbados)
- [Азербайджан](https://apptail.io/ru/app/hrv4training-VoQ/azerbaijan)
- [Ангола](https://apptail.io/ru/app/hrv4training-VoQ/angola)
- [Иордания](https://apptail.io/ru/app/hrv4training-VoQ/jordan)
- [Узбекистан](https://apptail.io/ru/app/hrv4training-VoQ/uzbekistan)
- [Кения](https://apptail.io/ru/app/hrv4training-VoQ/kenya)
- [Кувейт](https://apptail.io/ru/app/hrv4training-VoQ/kuwait)
- [Казахстан](https://apptail.io/ru/app/hrv4training-VoQ/kazakhstan)
- [Ливан](https://apptail.io/ru/app/hrv4training-VoQ/lebanon)
- [Латвия](https://apptail.io/ru/app/hrv4training-VoQ/latvia)
- [Мадагаскар](https://apptail.io/ru/app/hrv4training-VoQ/madagascar)
- [Северная Македония](https://apptail.io/ru/app/hrv4training-VoQ/north-macedonia)
- [Макао (САР)](https://apptail.io/ru/app/hrv4training-VoQ/macau)
- [Индонезия](https://apptail.io/ru/app/hrv4training-VoQ/indonesia)
- [Нигерия](https://apptail.io/ru/app/hrv4training-VoQ/nigeria)
- [Гондурас](https://apptail.io/ru/app/hrv4training-VoQ/honduras)
- [Гренада](https://apptail.io/ru/app/hrv4training-VoQ/grenada)

---

## About AppTail

[AppTail](https://apptail.io/ru) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io/ru)
- [Top Charts](https://apptail.io/ru/top-iphone-apps)
- [Sign Up for Full Access](https://apptail.io/ru/account/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io/ru) - Mobile App Intelligence Platform*