Hashtags become tags

A phone has no tag picker, so typing the name is the only way to ask for one. Any #word in a text becomes a tag on the note it arrives as — creating the tag if you do not have it yet.

Last updated 25 August 2026. Stuck on something this does not cover: [email protected].

Before you start

  • A registered number, if you are texting. The same rule also works in Dump mode on the board, which needs nothing set up.

Steps

  1. Put a hashtag anywhere in the message

    Beginning, middle or end — position does not matter. Call the plumber #home and #home call the plumber file the note identically.

    A tag you do not have yet is created, which is the only way to make one from a phone. The # is how a tag is written, not part of its name, so #home and a tag called home are the same thing.

  2. Use as many as you need, up to ten

    Ten tags per message is the cap. Anything past that is dropped as a tag but still taken out of the text, so a message with fifteen hashtags does not end up with five of them sitting in the note body.

  3. Know what does not count

    The rules are deliberately narrow, because every one of them stops ordinary writing being turned into a tag by accident:

    A hashtag must start the message or follow a space — so C# and issue#4 are words, not tags. It must contain a letter — so #1 priority stays prose. And it ends at the first character that is not a letter, digit, hyphen or underscore — so the full stop in #work. is punctuation, and the tag is work.

  4. Check the card

    The note arrives with the tags on it and the hashtags taken out of the body. Leaving them in would show the same word twice — once as text, once as a tag chip.

What happens next

  • The tags appear down the rail with a count beside each, and clicking one filters the board to it.
  • The same syntax works in Dump mode on the board, which is the only other place with no tag picker.
  • Elsewhere in the app you type tags into a box instead, where the # is optional — see Organize with tags.

If something goes wrong

Each row is what you see on screen. Symptoms are worded the way the app words them, so the sentence in front of you should be findable on this page.

A word with a # in it was treated as ordinary text
It probably did not follow a space, or had no letter in it. C#, issue#4 and #1 are all words by design.
The tag is shorter than what you typed
It stopped at the first character outside letters, digits, hyphen and underscore. #follow-up_2 survives whole; #follow up is the tag follow and then the word up.
Two spellings made two tags
They should not have — tags are matched loosely enough that case and punctuation differences resolve to the same tag. If you genuinely have two, rename one in the tag drawer and the other will absorb its items as you re-tag them.
A message that was only hashtags made an empty note
Expected. The tags were the whole message, so the note carries them and no body. It is a real note — open it and add one.

Next

  • Text a note in Send a text to your BrainSack number and it lands on the board as a note. What arrives, what does not, and why there is no reply.
  • Organize with tags Tags are typed, never picked from a list. How to make one, rename it, recolour it, and why empty ones vanish.
  • Empty your head with Dump mode One big box. A blank line between each thought, and each one lands as its own note.

Still stuck? Email [email protected] and tell us what the screen said. All the help articles are at Help.