Per-email · Outlook

Outlook users:
your notes follow the email — even in Split View.

Outlook on the web keeps the open message id in the URL even in the reading pane, so a note can scope to one email and follow it as you click through.

Download free trial See pricing
macOS 13+ · Apple Silicon & Intel · 14-day free trial · $24.99 one-time
The problem

A follow-up belongs to one email.
Your stickies don't know which.

You triage dozens of emails an hour. A follow-up note belongs to one message — but desktop stickies have no idea which email is open, so they sit there for everything or nothing. And in split view, most tools lose the thread entirely the moment you click to the next message.

How it works

Notes that follow the email,
not your inbox.

✉️

Per email

Outlook on the web puts the open message id right in the URL, so TackNote can scope a note to that exact email. Tack a follow-up to one message and it belongs to that message — not your whole inbox.

🪟

Even in Split View

Because the message id updates as you click through the reading pane, the right note follows the right email. Move from one message to the next and the note that belongs to each one shows up on cue.

↩️

Reveal reopens it

Open TackBoard, see a note, click Reveal — TackNote opens that exact message in Outlook. The note is the shortcut straight back to the email it belongs to.

What TackNote tracks in Outlook.

Outlook on the web is scoped by the message id in the URL path — so a note binds to one email and follows it as you read, including in the reading and split pane.

✉️

Per-email scope

Outlook on the web exposes the open message id in the URL, so a note binds to that one email. Open a different message and it stays put with the message it belongs to.

🪟

Follows in Split View

The message id updates as you click through the reading pane, so the right note follows the right email — even with the split/reading pane open. (Heads up: the desktop Outlook app scopes by folder/view, since it doesn't expose the open message.)

☁️

Cross-Mac sync

Web notes sync across your Macs through your own iCloud, end-to-end encrypted. Tack a follow-up on one Mac and it's waiting on the other.

🔒

Private & on-device

Notes, voice memos, and transcripts live encrypted on your Mac. No cloud account, no tracking. The only network call is license validation.

Scope: per email Works: Split View Reveal: reopen message Tier: Full 🟢 (web)
"I tack a follow-up to one email and it follows that exact message through the reading pane. Right where the email is — never lost in the inbox."
FAQ

Outlook, answered.

Does it really work in Split View?

Yes — Outlook on the web keeps the open message id in the URL even in the reading pane, so the note follows the email you're reading.

Web Outlook vs the desktop app?

Outlook on the web scopes per-email; the desktop Outlook app scopes by folder/view, since it doesn't expose the open message.

Does the note come back automatically?

Yes — open that email again and it returns.

Does it sync across my Macs?

Yes — via your own iCloud, end-to-end encrypted.

Is there a free trial?

Yes — 14 days, no card. After that, a one-time $24.99 license unlocks TackNote on up to 2 Macs.

Simple pricing

One price.
Every app you work in.

Launch price — limited time
$24.99
One-time · Yours forever · Up to 2 Macs · $29.99 regular
Download free trial

14-day free trial · No card required · Direct download · No App Store

End-to-end encrypted

Private by design. Yours alone.

Every note is sealed with AES-256 encryption the moment you write it — the key lives in your Mac’s Keychain, never on a server. Switch on iCloud sync and your notes stay end-to-end encrypted across your devices through Apple’s CloudKit: encrypted on your Mac before they leave it, and readable only by you. No accounts, no trackers, no servers we control. Not even we can read your notes.