Frequently Asked Questions & Support

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Our Most Frequently Asked Questions


Clearly we get asked a lot of questions about our technology and how it works. We’ve tried to answer the most commonly asked questions here, but if you have a specific question or a support query, please fill in the form below.

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PPG also known as Photoplethysmography is an optical non-invasive method for measuring the blood volume changes per pulse. It effectively represents the mechanical activity of the heart.

RPPG or remote Photoplethysmography is a method by which a face reader can measure heart rate and heart rate variability remotely. Where PPG is mostly used with wearable devices, RPPG detects the heart rate by using light and a completely contactless method. It measures the variance of red, green, and blue light reflection changes from the skin, as the contrast between specular reflection and diffused reflection.

Please refer to the following article which explains the process by which vital stats can be read using RPPG.

No, our algorithms adjust for makeup on the face.

We need normal lighting conditions for an effective reading, bright sunlight or glare affects the readings and are not recommended.

We’ve done many tests with a number of different skin tones.

No, our technology is agnostic to age.
Our readings depend on the speed of your internet connection, but on average take less than 60 seconds to perform.
We take your snap shots for processing in our secure Azure cloud, once we have extracted the vitals , all information is deleted and the only data we keep is the core vitals, time stamped with no personally identifiable information.

We are not a device, we offer a software based solution which offers a first line of defence to detect vitals based on rPPG technology. This technology does not replace a physical device which would be used in a hospital or by a medical professional.

Our accuracy is currently 95% against a regulated device. We performed many tests with large data sets to help our technology increase accuracy over time. 

Yes, it works on any iPhone 5 and above. It also works on most Android devices with a hi-res camera.

Yes, there is an iPad version also available.

We now have a web based solution that works on any device that has an embedded camera and a web browser.

As often as you like, we would recommend once a day, but depends on what you want to assess. The more vitals we can accumulate, the more predictions we can make.

We’ve tested our technology on a variety of ethnicities including darker skins and we believe our technology works extremely well across different skin tones.

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No, our solution needs an internet connection as all the ‘heavy work’ of processing is done in our cloud servers from anywhere in the world. We need a decent 4G or good WiFi connection in order to get good accuracy.

We offer a SDK and integration options, please speak to us on how this can be integrated into your application.

No, we only sell our SDK (software development kit)  delivered to enterprises for health & wellness purposes, who typically integrate our SDK into their application to gather vital signs data as part of their overall offering. You cannot download our app from Google Play store or the App Store.

We process the data in Microsoft Secure cloud servers based in Azure, and once your data is processed, we delete any PII information. Please refer to our privacy policy for further details.
No, we are not a replacement for any healthcare professional. You must seek your healthcare professional for any medical advice.
No we cannot, this has to be determined by your health care professional.
No, but we are planning to file in the near future.

Do You Need Further Support?


Please provide your contact information and details of the issue so that we can raise a support ticket.

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Our solutions are not a replacement for a healthcare professional and our solution does not diagnose, prevent, provide any treatment for any form of illness or disease.

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