← QuillReply

Comparison

QuillReply vs Boomerang for Gmail

Boomerang practically invented this category, and it is a bigger product than QuillReply: send later, inbox pause, open tracking, meeting scheduling, and more. The honest question is not which tool has more features. It is what you trade for them, and whether you use them.

The short version

Boomerang works through full access to your mailbox. Its own privacy policy describes collecting the contents and headers of the communications you send and receive, and storing your messages on its servers so features like Send Later can work. That is a reasonable design for what it does; it is also a real trade.

QuillReply is built around the opposite trade: it requests no Gmail permission at all, reads only the email already open on your screen at the moment you click, and checks "did they reply" inside your own browser. If you mostly want reply reminders and good drafts, you can have them without handing anything the keys to your mail.

Side by side

	QuillReply	Boomerang
Gmail permission required	None	Full mailbox access via the Gmail API
Where your mail content lives	On your screen; processed only when you click, then discarded	Message contents stored on their servers per their privacy policy
Remind me only if they have not replied	Yes, checked in your browser; ignores out-of-office autoreplies	Yes, checked server-side
AI and your writing	Drafts full replies in your voice, learned from emails you choose	Respondable scores and coaches the message you wrote
Email into a task	Apple Reminders, Google Tasks, Obsidian, Things 3, with suggested titles and dates	Not a task-manager tool; reminders return as email
Send later / recurring send	No, by design: we never hold outgoing mail	Yes, a core feature
Open and click tracking	No	Yes
Inbox pause, meeting scheduling	No	Yes
Price	Free during beta; simple pricing at launch	Free tier (10 credits per month); paid plans listed from $4.98 to $49.98 per month

Where Boomerang is stronger

If you schedule outgoing email, pause your inbox, track opens, or run recurring messages, Boomerang does all of that and QuillReply does none of it, on purpose. Every one of those features requires a service to hold or watch your mail, and staying out of your mailbox is the line QuillReply will not cross. Choose accordingly; both are legitimate designs.

Where QuillReply is different

Three things, all downstream of the same decision:

• Nothing to trust. "We never read your other mail" is not a promise here, it is an inability. There is no Gmail scope to misuse, in our hands or anyone who ever breached us.
• Drafting, not grading. Boomerang's Respondable tells you how your message scores. QuillReply writes the reply in your voice and waits for you to press Send.
• Tasks land where your tasks live. A reminder that returns as yet another email is more inbox. QuillReply files into Apple Reminders, Google Tasks, Obsidian, or Things 3, with no developer accounts and no Apple ID requested.

Comparison reflects publicly available information as of August 2026, including Boomerang's published privacy policy and third-party pricing listings; features and prices change, so confirm details on their site. Boomerang is a trademark of Baydin, Inc. Gmail™ is a trademark of Google LLC. QuillReply is not affiliated with either. Corrections welcome: hello@quillreply.com.