Observations and reported facts, newest first.
Oct 16, 2026
Apple's App Store Review Guideline 4.5.4 bars promotional push notifications in iOS apps unless users explicitly opted in through consent language in the app.
From Apple, App Store Review Guidelines, developer.apple.com
Keep in mind: Guideline also requires an in-app way to opt out, and says abuse can lead to revocation of push privileges. Covers in-app push on iOS only, not web push. Date is the page's 'Last Updated' date.
Oct 10, 2025In View client
Google's Chrome team announced on 2025-10-10 that Chrome automatically removes notification permission from sites that send many notifications and get very low engagement.
From Archit Agarwal, Product Manager, Chrome, Google (Google Ad Manager), blog.google
Keep in mind: Applies to web push in Chrome on Android and desktop, not to installed web apps. Users can re-grant permission or turn the feature off. Google is an In View client.
Oct 10, 2025In View client
Google's Chrome team reported on 2025-10-10 that less than 1% of all notifications in Chrome receive any user interaction.
From Archit Agarwal, Product Manager, Chrome, Google (Google Ad Manager), blog.google
Keep in mind: Figure covers all Chrome notifications, not only publisher or ad-bearing push. Google gives no method or sample size. Google is an In View client.
Oct 10, 2025In View client
Google's Chrome team reported on 2025-10-10 that, in its tests of permission removal, websites that sent fewer notifications saw an increase in clicks.
From Archit Agarwal, Product Manager, Chrome, Google (Google Ad Manager), blog.google
Keep in mind: Google gives no size for the click increase and no definition of 'lower volume'. Google is an In View client.
Jun 17, 2025
The Reuters Institute Digital News Report 2025 found that 43% of people who do not get news alerts say they actively disabled them.
From Nic Newman, Reuters Institute for the Study of Journalism, reutersinstitute.politics.ox.ac.uk
Keep in mind: Survey across eight countries (USA, UK, Germany, Japan, Brazil, India, Kenya, South Africa). It covers news app alerts, not ad-bearing push, but it measures the opt-out behaviour that sponsored push puts at risk.
Jun 17, 2025
The Reuters Institute reported in June 2025 that The Times of London caps news alerts at four a day to avoid spikes in app uninstalls.
From Nic Newman, Reuters Institute for the Study of Journalism, reutersinstitute.politics.ox.ac.uk
Keep in mind: Editorial app alerts, not ad-bearing push. The same chapter reports that The Jerusalem Post and CNN Indonesia send up to 50 alerts a day.
Apr 14, 2025
Pushly reported on 2025-04-14 that impressions from push notifications at GRV Media, a UK sports publisher, rose by over 100% in 12 months.
From Pushly, pushly.com
Keep in mind: Vendor press release on a contract renewal; no baseline given. The release does not say whether these impressions carry ads.
Jul 31, 2021
Jeeng launched AdServe for Push in July 2021 to traffic ads from a publisher's Google Ad Manager inventory into browser push notifications.
From Jeeng (PowerInbox (Jeeng)), Martechvibe
Keep in mind: Launch announcement from 2021; Jeeng's own Jeeng Push page (copyright 2026, read 2026-11-02) still lists AdServe for Push. The release also cites unnamed data that 'nearly 60 per cent' of consumers accept ads in push; dropped as unsourced.