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Target: Android 11 (API 30)
About Hoia
HOIA is the official COVID-19 contact tracing app for Estonia. It is owned by the Estonian Health Board. The app has been created in collaboration between the Estonian Health Board, the Ministry of Social Affairs, the Health and Welfare Information Systems' Centre and a voluntary consortium of Estonian companies.
The application uses Bluetooth and the Google Exposure Notification API to notify you about exposure to people diagnosed with COVID-19. This way the app allows you to take care of yourself and your loved ones while limiting the spread of the disease in Estonia. The app has been developed according to privacy preserving principles and the notifications sent through the app do not disclose the identity of the infected person. Likewise, only you will know if you have been exposed to people diagnosed with COVID-19.
Phones that use the app register the Bluetooth signals from other nearby phones. If the signal is sufficiently close and long enough, an anonymous code referring to a close contact will be stored in the phone. If a person now confirms their infection with the HOIA app, the anonymous codes on their device will be uploaded to a central server where all users can download them. It is not possible to identify a person based on an anonymous code. The user’s phone compares whether the infected person’s anonymous code matches a code previously stored on their phone. If so, the user is considered to be a close contact and they will be notified with instructions. It will not be revealed to the user who the infected person was with whom they were in contact with, or any other information that would allow the indirect identification of the infected person.
The app has been developed in collaboration with the following Estonian companies: ASA Quality Services, Cybernetica, FOB Solutions, Fujitsu Estonia, Guardtime, Heisi IT, Icefire, Iglu, Mobi Lab, Mooncascade, Velvet.
Hoia 1.4.9 variants
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:1.5.2(1050200) for Android 6.0+ (Marshmallow, API 23)
Uploaded:April 30, 2022 at 8:12AM UTC
File size:5.51 MB
Downloads:10
Version:1.4.9(1040900) for Android 6.0+ (Marshmallow, API 23)
Uploaded:February 9, 2022 at 5:44PM UTC
File size:5.6 MB
Downloads:1
Version:1.4.7(1040700) for Android 6.0+ (Marshmallow, API 23)
Uploaded:January 28, 2022 at 9:14PM UTC
File size:5.53 MB
Downloads:6
Version:1.4.6(1040600) for Android 6.0+ (Marshmallow, API 23)
Uploaded:November 19, 2021 at 7:41AM UTC
File size:5.52 MB
Downloads:8
Version:1.4.5(1040500) for Android 6.0+ (Marshmallow, API 23)
Uploaded:October 16, 2021 at 4:28PM UTC
File size:5.52 MB
Downloads:9
Version:1.4.1(1040100) for Android 6.0+ (Marshmallow, API 23)
Uploaded:August 18, 2021 at 8:28AM UTC
File size:5.46 MB
Downloads:10
Version:1.4.0(1040000) for Android 6.0+ (Marshmallow, API 23)
Uploaded:July 9, 2021 at 12:39PM UTC
File size:5.76 MB
Downloads:11
Version:1.3.8(1030800) for Android 6.0+ (Marshmallow, API 23)
Uploaded:May 7, 2021 at 7:49AM UTC
File size:4.43 MB
Downloads:7
Version:1.0.9(1000900) for Android 6.0+ (Marshmallow, API 23)
Uploaded:February 18, 2021 at 8:44PM UTC
File size:4.43 MB
Downloads:8
Version:1.0.8(1000800) for Android 6.0+ (Marshmallow, API 23)
Uploaded:January 19, 2021 at 7:49AM UTC
File size:4.43 MB
Downloads:15
Version:1.5.2
Uploaded:April 30, 2022 at 8:12AM UTC
File size:5.51 MB
Downloads:10
Version:1.4.9
Uploaded:February 9, 2022 at 5:44PM UTC
File size:5.6 MB
Downloads:1
Version:1.4.7
Uploaded:January 28, 2022 at 9:14PM UTC
File size:5.53 MB
Downloads:6
Version:1.4.6
Uploaded:November 19, 2021 at 7:41AM UTC
File size:5.52 MB
Downloads:8
Version:1.4.5
Uploaded:October 16, 2021 at 4:28PM UTC
File size:5.52 MB
Downloads:9
Version:1.4.1
Uploaded:August 18, 2021 at 8:28AM UTC
File size:5.46 MB
Downloads:10
Version:1.4.0
Uploaded:July 9, 2021 at 12:39PM UTC
File size:5.76 MB
Downloads:11
Version:1.3.8
Uploaded:May 7, 2021 at 7:49AM UTC
File size:4.43 MB
Downloads:7
Version:1.0.9
Uploaded:February 18, 2021 at 8:44PM UTC
File size:4.43 MB
Downloads:8
Version:1.0.8
Uploaded:January 19, 2021 at 7:49AM UTC
File size:4.43 MB
Downloads:15
