BlueTicks for Gmail

BlueTicks adds WhatsApp-style read receipts to Gmail. One tick means your email was sent, two blue ticks mean it has been opened, in real time, right in your Sent list. Hover a tick to see when, and how many times, an email was opened, and a companion side panel surfaces the messages still waiting on a read. I built it privacy-first: no OAuth, no access to your Google account, recipients see nothing, and email content never touches the servers. There is a free plan, and the paid plan is 4 dollars a year for gmail accounts. Available on both stores. Chrome: chromewebstore.google.com/detail/blueticks-for-gmail/hipmeeilnlifaoegpfiodlnapplogpkn and Firefox: addons.mozilla.org/en-US/firefox/addon/blueticks-for-gmail/