Apple and Google Update Exposure Notification API, 20 U.S. States Expected to Release Apps Soon

Google today announced that the Exposure Notification API that it designed in partnership with Apple has received some improvements to make it more useful to public health authorities.

exposure notification cartoon
Most notably, the API supports interoperability between countries, and Bluetooth calibration has been improved. The full list of updates is below:

  • When an exposure is detected, public health authorities now have more flexibility in determining the level of risk associated with that exposure based on technical information from the API.
  • Bluetooth calibration values for hundreds of devices have been updated to improve the detection of nearby devices.
  • The API now supports interoperability between countries, following feedback from governments that have launched ‌Exposure Notification‌ apps.
  • To help public health authorities build apps more efficiently, we've added reliability improvements for apps and developer debug tools.
  • We've improved clarity, transparency and control for users. For example, the Exposure Notifications settings on Android now include a simple on/off toggle at the top of the page. In addition, users will also see a periodic reminder if ENS is turned on.

Google says it has also launched more technical guidance on how the ‌Exposure Notification‌ API works over the course of the last few weeks, and is providing more information on its Exposure Notifications website.

According to Google, 16 countries and regions across Africa, Asia, Europe, North America, and South America are using apps built with the ‌Exposure Notification‌ API, and 20 U.S. states are "exploring" apps with the first set to roll out "over the coming weeks."

Top Rated Comments

(View all)
Avatar
13 weeks ago
Absolutely insane American government won’t implement this!!! It’s working really well here in Ireland! Getting 12-45 contacts a day in app (in settings) and no positives yet! Amazing little app! Just one question though do the devs need to update the api or will it work with the app right away? It’s insane in Ireland that it can’t be used in Northern Ireland because it’s in the UK. Same land but needs 2 apps that won’t work together it’s crazy, kinda like the states in America I guess. The level of stupidity in this is mind boggling.
Score: 9 Votes (Like | Disagree)
Avatar
13 weeks ago


What is a US based app that is actually using this now we can adopt?

There is no U.S. app, literally the U.S. Federal Govt punted on this (along with virtually everything else so "its not someone's fault"). It's up to the governors and only 3 states I think said they'd use it (as far as I know nobody has one out - out of the 3 states). It's rather tragic but virtually nobody in the U.S. will be able to use this.
Score: 6 Votes (Like | Disagree)
Avatar
13 weeks ago


The amount of data collected with this is staggering, but if it's not misused, the ability of this API is beyond amazing.

Here's to not abusing and misusing it ?

Check out how germany is doing it. The entire App is 100% open source. Super expensive to create and maintain apparently, but everyone can see all the code and hand in suggestions of how to do something better. It's a pretty amazing high level collaboration.
Score: 5 Votes (Like | Disagree)
Avatar
13 weeks ago
Maybe I'm missing something, but it sure seems to me that Apple/Google should be providing the front-end 'app' for users... then letting governments tie into the systems via API's or even Data-as-a-Service (DaaS).
Score: 5 Votes (Like | Disagree)
Avatar
13 weeks ago


The amount of data collected with this is staggering, but if it's not misused, the ability of this API is beyond amazing.

Here's to not abusing and misusing it ?

Please read the spec ('https://www.apple.com/covid19/contacttracing') (the FAQ ('https://covid19-static.cdn-apple.com/applications/covid19/current/static/contact-tracing/pdf/ExposureNotification-FAQv1.1.pdf') explains it quite well) and then list the ways in which the collected data could be misused - that is, the data that is actually collected, not something that you guess that it must be collecting.
Score: 3 Votes (Like | Disagree)
Avatar
13 weeks ago


What makes you think it's working? You have no reason to believe that it does anything.

This is nothing but a huge time wasting proof of concept.

What makes me think it’s working. Am because over 105 people have had alerts to being close contacts already. The government release the figures that the app creates. So that’s how I know it’s working. The level of cynicism And distrust about all this is staggering - I would imagine your American? Or else think the government is spying on you? You probably don’t wear a face mask to protect OTHERS around you either am I right?
But hey, you won’t use an app made by Apple but you probably have an iPhone with location services on - this collects infinitely more information on you then this app ever would or could! What’s the point of making a comment like this. It’s helping people know if they’ve been in contact with an infected person it’s help in the fight against this horrible disease that’s killing thousands of people, get a life.
Score: 3 Votes (Like | Disagree)

Top Stories

Apple References Unreleased 2020 16-Inch MacBook Pro in Boot Camp Update

Monday October 26, 2020 8:42 am PDT by
Last week, Apple released an update for Boot Camp, its utility for running Windows on a Mac. While this update would typically be unremarkable, several of our readers noticed that the release notes reference an unreleased 2020 model of the 16-inch MacBook Pro. While this could easily be a mistake, the 16-inch MacBook Pro is nearly a year old, so it is certainly a worthy candidate for a...

MagSafe Charger Only Charges at Full 15W Speeds With Apple's 20W Power Adapter [Updated]

Monday October 26, 2020 3:38 pm PDT by
Alongside the iPhone 12 and 12 Pro models, Apple introduced a new MagSafe charger that attaches to the magnetic ring in the back of the devices, providing up to 15W of charging power, which is double the speed of the 7.5W Qi-based wireless charging maximum. Apple does not provide a power adapter with the $39 MagSafe charger, requiring users to supply their own USB-C compatible option. Apple...

Google Reportedly Pays Apple $8-12 Billion Per Year to be Default iOS Search Engine

Sunday October 25, 2020 2:59 pm PDT by
The United States Justice Department is targeting a lucrative deal between Apple and Google as part of one of the U.S. government's largest antitrust cases, reports The New York Times. On Tuesday, the Justice Department filed an antitrust lawsuit against Google, claiming the Mountain View-based company used anticompetitive and exclusionary practices in the search and advertising markets to ...

After Mocking Apple, Samsung May Remove Power Adapter From Galaxy S21 Box

Tuesday October 27, 2020 4:29 pm PDT by
Samsung's Galaxy S21, coming in 2021, may not include a power adapter or headphones in the box, according to reports from Korean media sites highlighted by SamMobile. Rumors earlier this year also said that Samsung was considering removing these accessories from future smartphone models, but that didn't stop Samsung from mocking Apple for selling the iPhone 12 models without a power adapter...

Report: Apple Silicon iMac Featuring Desktop Class 'A14T' Chip Coming First Half of 2021

Tuesday October 27, 2020 4:14 am PDT by
The first iMac powered by Apple Silicon is set to arrive in the first half of next year and will feature a desktop class "A14T" chip, according to Chinese-language newspaper The China Times. Codenamed "Mt. Jade," Apple's first custom-made desktop processor will be twinned with its first self-developed GPU, codenamed "Lifuka," both of which are being produced using TSMC's 5-nanometer process, ...

iPhone 12 Six-Foot Drop Test Results: Ceramic Shield More Durable But Not Damage Proof

Monday October 26, 2020 5:00 am PDT by
Apple's new iPhone 12 and iPhone 12 Pro feature a new Ceramic Shield screen that Apple says offers 4x better drop performance. To test that claim, Allstate Protection Plans put the two models through a range of breakability tests and recorded the results. In a face down sidewalk drop test at six feet, the iPhone 12 suffered small cracks and scuffed corners and edges, leaving sharp grooves in ...

Bloomberg: New AirPods and AirPods Pro Coming in 2021, AirPods Studio Delayed, Third HomePod Model Also Possible

Monday October 26, 2020 3:34 am PDT by
Apple plans to update its AirPods line next year with two new models including third-generation AirPods and second-generation AirPods Pro, according to a new report from Bloomberg. The Cupertino, California-based technology giant is working on two new models: third-generation entry-level AirPods and the second version of the AirPods Pro earbuds, according to people familiar with the plans. ...

2020 iPad Air vs. iPad Pro: Hands-On Comparison

Tuesday October 27, 2020 3:03 pm PDT by
Apple announced the new 2020 fourth-generation iPad Air in September, but the new tablets just started shipping out to customers last Friday. We picked one up and thought we'd do a hands-on comparison with the iPad Pro, which was last updated in March, because both tablets are about as powerful and share many similarities. Subscribe to the MacRumors YouTube channel for more videos. Design and ...

iPhone 12 Ceramic Shield Still 'Scratches at Level 6 With Deeper Grooves at Level 7' in Mohs Hardness Test

Wednesday October 28, 2020 7:10 am PDT by
iPhone 12 and iPhone 12 Pro models feature a new Ceramic Shield front cover that is "tougher than any smartphone glass," according to Apple, but the displays on the devices still have similar scratch resistance as previous iPhones based on a new test. Zack Nelson today shared his much-anticipated iPhone 12 Pro durability test on his YouTube channel JerryRigEverything, and based on the Mohs...

Apple Files Mystery 'Personal Computer' With Placeholder 'B2002' Name in Bluetooth Product Database

Tuesday October 27, 2020 12:36 pm PDT by
Last week, a listing appeared in the Bluetooth product database for an Apple product with a placeholder name "B2002" and a model number of "TBD." MacRumors was alerted to the listing by health and fitness tech website MyHealthyApple. The product is filed under the "personal computer" category, which Apple has used for previous Mac and iPad listings in the database, so it is hard to pinpoint...