Certificate of compliance

Ada Health

is in compliance with the HONcode

Logo certificat HONCode
2 Years

Certificate validity: valid until Feb 2022

ada.com Visit website

Logo certificat HONCode
HONcode identification number:


Date of initial review:

23 Jun 2019

Certificate validity:

valid until Feb 2022

Date of last visit:

17 Feb 2021

Content identified by the HONcode team

The content below is a sample of the content identified at a specific date by the HONcode team that justifies the respect of the eight ethical principles.

Our leadership team

(17 Feb 2021) - Link


(17 Feb 2021) - Link

You must be 16 years or older to use our Services.
Protecting your data, privacy and personal data (as defined under Article 4(1) of the General Data Protection Regulation (EU) 2016/679 (“GDPR”)) is very important to Ada Health GmbH (“us”, “our” or “we”). It is vitally important to us that our customers (the “users”) feel secure when using our products and services.
This privacy policy (the “Privacy Policy”), together with our Terms & Conditions at ada.com/terms-and-conditions, our Cookie Policy at ada.com/cookie-policy and any other documents referred therein, sets out the basis on which any personal data we collect from you, or that you provide to us, will be processed. Please read this Privacy Policy carefully to understand the types of data we collect from you, how we use it, the circumstances under which we will share it with third parties, and your rights in relation to your personal data.
When using “Ada” (through our mobile application (the “App”), when and where available our web-based application (the “Web-embed”) and our screening tool (the “Screening Tool”), together the “Medical Device”), or when accessing our website ada.com (the “Website”) or any service and/or product we may provide you (Website together with the Medical Device and any of our product and services, the “Services”), you will be asked to indicate your acknowledgment of, and where applicable, give your consent to the processing activities as described in this Privacy Policy.
1. Who we are
This Privacy Policy applies to any personal data processed by Ada Health GmbH (HRB 189710), Karl- Liebknecht-Straße 1, 10178 Berlin, Germany being the data controller (as defined under Article 4(7) GDPR) of all processing activities in connection with the Services.
Questions, comments and requests regarding this Privacy Policy are welcome and should be addressed through our contact form here. Our data protection officer can be contacted at
2. General overview of the data processing in connection with the Services
Before starting using our Services, you have to confirm that you have read our Privacy Policy carefully, and to consent to Ada analyzing the personal health data you supply in order to be provided with an assessment and health advice, for which you can find an information summary here.
This section 2 aims at giving you a quick high-level overview of the data processing activities in connection with the Services we provide you.
If you wish to read in detail all the data processing activities we undertake, we advise you to read the following section 3 relating to each specific data processing activity, and sections 4 to 9 that relate to:
our cookies & tracking policy (section 4),
where we store your personal data (section 5),
when we may disclose your personal data (section 6),
our retention policy (section 7),
your data subjects’ rights (section 8),
your specific rights if you are a California resident (US) (section 9), and
our changes policy (section 10).
Information that you provide to us: we may collect and process personal data that you will be asked to provide when you:
fill in forms on our Website, apply for a job offer or otherwise correspond with us by any available means;
register to use our Services, subscribe to our newsletter, receive promotional emails or any other marketing materials;
use our Services;
report a problem with our Services; or
complete any surveys or provide any feedback that we may use for research and improvement purposes (although it is optional, and you do not have to respond to these if you do not want to).
The information that we may ask you to provide includes, but is not limited to, your name, gender, date of birth, email address, phone number, symptoms of your illness, potential causes of your illness symptoms, health insurance (optional), medical history, any allergies you have, or further information required to verify your identity.
Information we collect about you: although we will not use it to identify you, we may collect the following data during each of your visits and use of our Services:
Usage data: technical information about your device, including device-specific information such as your hardware model, operating system version, unique device identifiers, and mobile network information; details of your visits, including the full Uniform Resource Locators (“URL”) clickstream to, through and from our Services (including date and time); details of conditions and symptoms searched;
Analytics data: your IP address, operating system and browser type; information about which app store you downloaded our App from; length of visits to certain pages, and page interaction information (such as scrolling, finger gestures, clicks, and mouse-overs)
If you are using our Services on behalf of a third party, you must have obtained clear permission from the individuals whose data you provide us with before sharing that data. For the avoidance of any doubt, any reference in this Privacy Policy to “your data” shall include data about other individuals that you have provided us with.
Our Website may contain links to third-party websites. If you follow a link to any of those third-party websites, please note that they have their own privacy policies and that we do not accept any responsibility or liability for their policies or processing of your personal data. Please check these policies before you submit any personal data to such third-party websites.
3. Which personal data we may collect and process, why and for how long
3.1 When you use our Website
Types of data: IP address of the requesting device, date and time of access, name and URL of the requested file, website from which access is obtained (“Referrer URL”), browser used and, where applicable, your device’s operating system and the identity of your access provider.
Purpose of processing: We use the above data to provide you with access to our Website, ensure that the Website can establish an internet connection smoothly and is easy to use, and to analyze the system security and stability, as well as for additional administrative purposes.
Use justification: Legitimate interest (Article 6(1)(f)GDPR). Our legitimate interest is based on the data collection purposes listed under “Purpose of processing”. We do not use the data collected for the purpose of identifying you. You are not obliged to provide the above personal data; however, you will not be able to access the Website if such personal data are not provided.
Storage duration: Your data is removed after 15 days, unless any security-relevant event occurs (e.g. a DDoS attack). If there is a security-relevant event, server log files are stored until the security-relevant event has been eliminated and clarified in full.
3.2 When you register a user account or create a new profile
Types of data: Email address and password, account ID, device ID, profile name, gender, date of birth, health insurance (optional), general data about your health (optional) such as smoking, increased blood pressure, diabetes, and pregnancy status, date, time and location of registration.
Purpose of processing: We use the above data to provide you with a user account and access to our Medical Device. We use the general health data for the basic analysis. It is not possible to access our Medical Device if the (non-optional) data are not provided. If you use our Medical Device through a Web-embed application, with your consent we may disclose pseudonymized usage data (not including any personal health data) to the partner that hosts the Web-embed.
Use justification: Contract performance (Article 6(1)(b)GDPR / Consent (Article9(2)(a) GDPR) for the processing of your health data.
Storage duration: We process your data for the purposes specified above until you request deletion of your account or when you delete your account. If your account is inactive for more than 24 months, we will contact you to check whether you wish to continue using our Medical Device. If you then leave your user account unused for another 3 months, we will delete your account. In either case, we will delete your account within 1 month and delete or irreversibly anonymize your data (such that it cannot be associated with a specific natural person). We will further retain your data (see section 7 for more details), e.g. for the purposes of establishing, exercising or defending against legal claims and to comply with high quality and safety standards, in particular our Post-Market Surveillance obligations but we will not process the data for any other purposes.
3.3 Health profile
Types of data: Body height and weight, any medication you are taking (permanently or not) and any allergies you may have.
Purpose of processing: This feature allows you to create a comprehensive health profile to manage your health data in our Medical Device. However, we will not process the data you provide for the creation of the health profile to determine the assessment results in accordance with section 3.5.
Use justification: Consent (Article 9(2)(a) GDPR). You may revoke/withdraw your consent at any time.
Storage duration: Your data will be stored until it is no longer required for the purpose for which it was collected. The storage duration of your data for this purpose corresponds to the period of processing in accordance with Section 3.2.
3.4 Facebook Login / Apple Login
Types of data: Facebook ID, Apple user ID, email address (if you authorize Facebook to share the address with us), time and date of the login.
Purpose of processing: If you choose to use and login with Facebook or Apple, we will receive the data listed above from Facebook or Apple with your approval to populate your user data in the App, and to verify your identity. Please note that if you use the Facebook login or the Apple login, Facebook or Apple may also process your data (Facebook ID/ Apple ID, metadata, some app events and device metric). We are not responsible for this data processing; you can learn more about this in Facebook’s Privacy Policy / Apple's Privacy Policy.
Use justification: Legitimate interest (Article 6(1)(f) GDPR). Our legitimate interest is to provide users who do not have an email account or who wish to log in with their Facebook account or Apple account the option to use our Services / Contract performance (Article 6 (1)(b) / Consent (Article 6 (1)(a) GDPR).
Storage duration: The storage duration of your data for this purpose corresponds to the period of processing in accordance with section 3.2. Data processed by Facebook or Apple, which we do not control if you choose to use Facebook login or Apple login, may remain in Facebook’s servers or Apple’s servers. Should you delete your Facebook account or stop using your Apple device and wish to use the App, you will be directed to sign-in with an email or other login procedure.

(17 Feb 2021) - Link

The data displayed correspond to only one of the selected samples.

Johns Hopkins Medicine. “Health Library: Appendicitis.” Accessed: August 9, 2017 ↩ ↩ ↩ ↩ ↩
Patient.info “Symptoms of Appendicitis”. 1 August 2017. Accessed 12 December 2018. ↩
Johns Hopkins Medicine. “Articles & Answers: Burst Appendix or Stomach Flu?.” Accessed: August 20, 2017 ↩
Cincinnati Children’s. “Appendicitis.” Accessed: August 16, 2017 ↩
AMBOSS. “Acute appendicitis”. 28 November 2018. Accessed 7 December 2018. ↩ ↩ ↩ ↩ ↩ ↩ ↩
The Obstetrician and Gynecologist. “Appendicitis in pregnancy: how to manage and whether to deliver”. 2015. Accessed 12 December 2018. ↩
Cleveland Clinic. “How to Tell if That Pain Is Your Appendix”. Accessed 7 December 2018. ↩
Medscape. “Appendicitis”. 23 July 2018. Accessed 8 December 2018. ↩ ↩ ↩
Therapeutic Advances in Gastroenterology. “[Chronic appendicitis: uncommon cause of chronic abdominal pain)” May 2015. Accessed 12 December, 2018 ↩ ↩
BMJ Best Practice. “Acute appendicitis”. Accessed 7 December 2018. ↩ ↩ ↩
American Pediatric Surgical Association. “Ruptured Appendicitis”. November 2016. Accessed 7 December 2018. ↩ ↩ ↩ ↩ ↩ ↩
Medscape. “Peritonitis and Abdominal Sepsis Clinical Presentation”. 11 January 2017. Accessed 7 December 2018. ↩
Radiopedia. “Appendicular abscess”. Accessed 7 December 2018. ↩
Society of American Gastrointestinal and Endoscopic Surgeons. “LAPAROSCOPIC APPENDIX REMOVAL (APPENDECTOMY) SURGERY PATIENT INFORMATION FROM SAGES”. 1 March 2015. Accessed 7 December 2018. ↩
Johns Hopkins Medicine. “What is gas in the digestive tract?”. Accessed 7 December 2018. ↩

(17 Feb 2021) - Link

Updated on January 7, 2020, 4:03 PM GMT+3

(17 Feb 2021) - Link

Complications are rare in surgery for acute appendicitis. Laparoscopic surgery has a lower chance of complications, though, as in all surgery, complications may occur.

(17 Feb 2021) - Link

How can we help?

(17 Feb 2021) - Link

We believe that everyone should have access to quality, personalized health information and care, which is why Ada’s assessment technology is free to anyone with a smartphone. We are partnering with government institutions, companies and other industry stakeholders and have received grants such as the EU's Horizon 2020 Programme.

(21 Jan 2020) - Link

We don’t receive funding through on-site ads or sponsored content. We're proud to collaborate with leading health systems and global non-profit organizations.
We are and will remain autonomous and flexible in our editorial policy. Our partners don't influence the content we create or publish.

The content of this certificate has been collected by the HON Foundation and may not be used without HON's express consent.

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The HONcode's significance

The Health On the Net (HON) certificate guarantees that this website complies with the eight principles of the HON Foundation's Code of Conduct at the date indicated above. The persons responsible for the site commit to maintaining its compliance with the HONcode principles for the duration of the site's certification.

However, despite the complaint system that has been put in place and the periodic review and automatic monitoring of certified sites to ensure maximum compliance with the HONcode ethical principles, it is impossible to eliminate all risks of incoherence that may appear.

Under no circumstances shall the HON Foundation and/or its partner(s) be held liable for any damages resulting from the use or the inability to use HONcode-certified websites. Similarly, the HON Foundation and/or its partner(s) shall not be held liable for the content of such certified websites or any other website accessible via a hypertext link or through third-party information.

Those responsible for the certified website are responsible for the content of the website unless otherwise provided by law.

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