Mention Reminder
Live on Slack today

A lightweight mention reminder for Slack

Somebody @mentions you in Slack while you are in a meeting. You read it, you mean to come back to it, and forty messages later it is gone. Mention Reminder watches the mentions nobody answered and sends you a private DM about them - at the hours you choose, in your own timezone. Reply and it clears itself.

  • Installs in about two minutes, no slash commands
  • Reminders arrive as a DM - nobody else sees them
  • Free for up to 5 people

Free ยท no card ยท no extra app

#MARKETING
AL

Alex ยท @John can you handle the graphics for Friday? ๐Ÿ™

๐Ÿ””
๐Ÿ”’ DM FROM MENTION REMINDER
๐Ÿ””Graphics for Friday ยท #marketing
๐Ÿ’ฌMeeting tomorrow at 10

1 cleared itself when you replied โœ“

How it works

How the Slack mention reminder works

One admin installs the app. Everybody else keeps writing exactly as they did before.

  1. Step 1

    Add the app to your workspace

    Click "Add to Slack" and approve the scopes. There is nothing to run afterwards - no slash command, no setup wizard, no channel to create by hand.

  2. Step 2

    Invite it to the channels that matter

    The bot only ever sees channels it has been invited to. Start with the busy ones; you can add more later, and DMs between people are never scanned.

  3. Step 3

    Someone @mentions you and moves on

    Mention Reminder adds a discreet ๐Ÿ”” to the message so the channel can see it is being tracked - and nothing more. No public nagging, no "any update?" from a bot.

  4. Step 4

    You get a private DM until you answer

    At the hours you picked - 09:00 and 17:00, say - the app DMs you the mentions still waiting. The App Home tab holds the same list whenever you want to check it.

The details

What it looks like inside Slack

The parts that are specific to Slack, rather than to the product in general.

Where reminders arrive
A direct message from the Mention Reminder app, plus the same list on its App Home tab. Nothing is posted into a channel, so no teammate ever sees what you were reminded about.
Which channels are watched
Only the ones the bot has been invited to - Slack gives an app no way to read a channel it is not in. Private channels work the same way once it is invited.
Your timezone
Read straight from your Slack profile, so 09:00 means 09:00 where you are without anybody filling in a form. Someone in another country gets their own morning, not yours.
Several workspaces at once
Link them on the Team plan and every unanswered mention lands in one list, tagged with the workspace it came from. Slack user IDs are workspace-local, so the same person is recognised across them by their e-mail address.
@channel, @here and user groups
Off by default, on any plan - one blast should not become a reminder for the whole company. Switch them on with Team and an AI classifier decides which ones actually needed a personal answer.
Admin lives in the web panel
There are no slash commands to learn. Reminder defaults, who the bot watches and billing are all in the panel; your own reminder hours are set from the app itself.
Self-clearing

It clears itself - you never tidy a list

A reminder that has to be dismissed by hand becomes another inbox. This one closes on the thing you were going to do anyway.

๐Ÿšซ It is not a task manager for Slack

Tools that turn messages into tickets only work while everybody keeps turning messages into tickets. This one asks for nothing, because it reads what your team was writing anyway.

  • No tasks, no assignees, no due dates, no board
  • Nobody but the admin signs up or logs in
  • No second app, no extra tab, no notifications from elsewhere
  • You reply in the thread

    A reply to the message, or anything you post in its thread, closes it immediately - and closes it for the person who mentioned you too.

  • You react with an emoji

    A ๐Ÿ‘ or a โœ… on the original message counts as an answer. Sometimes that genuinely is the whole reply.

  • You answer in the channel

    A short "ok" or "done" is recognised outright. On the Team plan, AI also spots a longer on-topic answer posted nearby rather than as a direct reply.

  • The message is deleted

    A mention whose message is gone cannot be answered, so its reminders close for everyone who got one - not just for whoever deleted it.

Before / after

The same Slack thread, twice

Nothing about how your team writes changes. The only difference is whether anyone still remembers the thread on Friday.

Slack without Mention Reminder
  1. Thursday, 12:32

    Alex: "@John can you handle the graphics for Friday?"

  2. Thursday, 12:33

    John reads it on his phone mid-call

  3. Thursday, 15:00

    The channel has moved on. Slack marks it read.

  4. Monday

    "Sorry, it slipped past me" - and the week is gone

โœ— 2-3 days of slippage on the project

Slack with Mention Reminder
  1. Thursday, 12:32

    Alex: "@John can you handle the graphics for Friday?"

  2. Thursday, 12:33

    John reads it mid-call - the app adds a ๐Ÿ””

  3. Thursday, 17:00

    One DM to John, listing what is still unanswered

  4. Thursday, 17:04

    John replies - the reminder clears itself

โœ“ Closed the same day

On the team's side the difference is zero: nobody installs anything, signs up, or clicks a button they did not already click.

Who it is for

Slack workspaces this was built for

Not "better communication" in the abstract - the specific places a mention goes quiet.

Client channels and Slack Connect

A question from a client that nobody picked up costs more than an internal one. Every shared channel the bot is invited to is watched the same way as your own.

Agencies running several workspaces

One person in three client workspaces is three Slack accounts and three sets of unread badges. Link them and everything unanswered arrives in one list, tagged by workspace.

Busy channels where mentions scroll away

In a channel doing hundreds of messages a day, being mentioned and being noticed are different things. The ๐Ÿ”” is what survives the scroll.

Teams spread across timezones

Reminders are sent on each person's own clock, read from their Slack profile - so nobody has to negotiate when it is acceptable to ping whom.

Testimonials

Teams that stopped losing threads

Odd that Slack does not have this built in. With all the noise, and dozens of people wanting something from you, it helps to have a watcher for whether you forgot to answer someone.
Marketing agency
We keep separate servers for talking to different clients. It is good to have one place that gathers the unanswered mentions from all of them at once.
Software house
Finally a tool that does not need its own panel and manual upkeep to work. Teaching people to use yet another external app is a nightmare.
SEO agency
I like how little work it took to start watching messages - and that the bell emoji shows at a glance which message is being watched, so you see right away that something needs a reply.
E-commerce store
Permissions

The scopes it asks for, in full

Slack shows you this list at install. It is short on purpose, and this is all of it.

Minimal permissions
The bot doesn't need admin. It reads the channels you point it at, manages the thread that holds your reminders, and adds reactions - that's it. Your server and workspace stay under your control.
Reminders only you see
Your reminders live in a private thread (Discord) or a DM from the bot (Slack) - nobody on the team sees them. The only public trace is a discreet ๐Ÿ”” on the message.
Credentials never make it out
Before an excerpt is stored or a message reaches the AI, anything shaped like an API key, token, or password is replaced with a placeholder. Detection is heuristic - a safety net, not a licence to paste secrets into chat.
Self-host on Enterprise
Enterprise runs on your own infrastructure with local LLMs - message content never leaves your company.
๐Ÿ”‘ What it asks for
  • Read messages in channels it is invited to
  • Send you direct messages
  • Add the ๐Ÿ”” reaction
  • Read profiles, for names and timezones
What it never asks for
  • Workspace admin
  • Your DMs with other people
  • Channels it was not invited to

Remove the app in Slack and it stops immediately - no ticket, no email to us.

Pricing without fine print

๐ŸŒฑ Starter

$0

For small teams trying Mention Reminder

  • 1 server or workspace, up to 5 people
  • One reminder a day, at the hour you pick
  • Direct @mentions only
Start for $0

๐Ÿš€ Team

$3$2.50

/ user / mo ยท excl. VAT

billed once a year

For growing teams

  • AI filters out @everyone and @role
  • Unlimited people (billed per seat)
  • Several Discord servers or Slack workspaces, one set of reminders
Get Team

๐Ÿฐ Enterprise

Custom

For orgs with compliance needs

  • Self-host + local LLMs
  • SSO, audit, SLA
Book a call ๐Ÿ“…

See full feature comparison โ†’

Slack FAQ

To install the app, yes - Slack requires an admin or owner to approve the scopes, and the web panel only lets admins of a linked workspace in. Everyone else needs nothing at all: no signup, no login, no permission of their own.

Only the ones it has been invited to. Slack gives an app no way to see a channel it is not a member of, so inviting it is the whole access control - and removing it from a channel takes that channel back out of scope. Direct messages between people are never scanned.

None. Everything an admin configures lives in the web panel, and your own reminder hours are set from the app inside Slack. Nobody has to memorise a command or read documentation to be reminded.

Also available

On Discord as well?

The same product runs on Discord, and one account covers both. Link them on the Team plan and a person who uses each gets one set of reminders instead of two.

Discord mention reminder โ†’

Stop letting things vanish in the scroll

Add Mention Reminder to Discord or Slack - two minutes, once. After that it runs in the background and nobody on the team has to do anything else. Starter is free, no card.

Free ยท no card ยท no extra app