Glimpse FAQ – the honest version
Short answers, including the things Glimpse can't do. We would rather you hear the limits from us.
Downsides – what Glimpse can't do (yet)
If I send two emails within about 20 seconds, can they mix up?
Yes, sometimes. When two emails go out within about 20 seconds of each other through your Gmail signature, they can share one tracker. An open of one of them may then show on the other. If it matters, wait half a minute between the two, or send from the Glimpse app or the Chrome add-on, where each email gets its own tracker.
Why is there a “--” line above my signature?
When Glimpse tracks through your Gmail signature, Gmail itself puts a short “--” line above every signature. That's how Gmail shows signatures; Glimpse can't remove it. Emails sent from the Glimpse app or the Chrome add-on don't need the signature, so they don't get the extra line.
Are emails from my extra @gmail.com addresses tracked?
Only when you send them from the Glimpse app or the Chrome add-on. For an extra plain @gmail.com address (a “send mail as” address), Google doesn't let Glimpse add tracking to its signature, so an email sent from that address in the regular Gmail apps isn't tracked. Your main address and company addresses are tracked everywhere.
Are emails my AI assistant sends tracked?
Only if the AI sends them through Glimpse. When an AI assistant sends straight through Gmail, there is no tracker in the email and Glimpse can't add one after it's sent. Glimpse marks those emails “Sent from an AI assistant or app – not tracked”. The Glimpse connector for AI assistants is available now: connect it once and the emails your AI sends are tracked.
Can Glimpse miss a real read?
Yes. If the reader's email app blocks pictures (Outlook often does until the reader clicks “Download pictures”, and plain-text apps never load them), the read doesn't show. Glimpse can only see an open when the invisible picture loads.
Can Glimpse show an open that wasn't a person?
Sometimes. Glimpse leaves out your own opens and marks Gmail preloading, spam scanners and Apple Mail's automatic loads as “Maybe”. But no tracker can tell every automatic load from a real read, so treat an open as a strong signal, not proof.
Why don't I see the city for Gmail readers?
Gmail loads pictures through Google's own image proxy, so for Gmail readers Glimpse sees that and when the email was opened, but not the reader's place or device.
If the email is forwarded, whose open is it?
Glimpse can't tell. If your reader forwards the email, an open by the new person shows as an open of your email.
Is there an iPhone app?
Not yet. On iPhone you can use the Glimpse website; the iPhone app is coming.
Using Glimpse
Is Glimpse free?
Yes. Tracking is free: invisible tracking, every open, alerts, and accurate counting. A paid Pro plan with extras is coming; tracking stays free.
Does the reader see anything?
No. Nothing visible is added to your email — no logo, no “sent with” line.
Do my own opens count?
No. Your own opens are left out on every device, including your Sent copy.
Does Glimpse read my emails?
No person reads your email. Glimpse keeps the subject, recipients and send time of the emails you track — never the text. It never sells data, shows no ads and doesn't use your email to train AI.
How do I delete my data?
In Settings → Delete my account, or at glimpsemail.app/delete. Everything is removed at once.
Still have a question? [email protected] — we answer every message.