Best Birthday Apps for Slack in 2026

Updated June 2026. Competitor details were sourced from publicly available information at the time of writing.

Most Slack birthday roundups list announcement bots: tools that post in a channel when someone's birthday arrives.

The other kind collects messages ahead of time and delivers a signed card.

Before you compare prices, decide which experience you want.

Need the full explainer first? See birthday bots vs signed group cards. This page compares six apps across both types.

Announcement bots vs group card signing

Announcement bots collect birthdays and post in a Slack channel on the day. Setup is quick and pricing is usually low. There's no secret signing and no card the recipient keeps. BirthdayBot, Billy, and Birthday 🥳 fall into this group.

Group card signing lets teammates write messages before the occasion, without the recipient seeing them until delivery. Messages are collected into a card. Some tools automate recurring birthdays and work anniversaries; others need someone to create the card. WishYoo, Doozy, and HuddleCard fall into this category.

Quick comparison

HuddleCard's column matches our Help Center. Competitor pricing and features can change; check their sites for the latest.

Each app

1. BirthdayBot

BirthdayBot is the most-installed Slack birthday tool. It collects dates via DM and posts a celebration message in your chosen channel on the day. Pricing is by celebration channel size (not your whole workspace): a free tier exists, then tiered plans from about $5/month for small channels up to $109+/month for channels of 101–200 people on Standard annual billing.

There's no secret signing and no card to keep. The channel post is the experience. Gift cards are available on paid tiers, but the core product is still an announcement.

Best for: teams that just want a channel post on the day, not a signed card. HuddleCard vs BirthdayBot.

2. Billy (BuddiesHR)

Billy is BuddiesHR's lightweight birthday bot. It follows the same pattern as BirthdayBot: collect dates, post announcements, let the team react. It's often positioned as the cheaper announcement option.

Best for: very small teams where cost matters more than a card. It's free under 10 people; paid plans are $1.25/user/month for larger workspaces.

3. Birthday 🥳 (Simple Work Apps)

Birthday 🥳 is an announcement bot by Simple Work Apps. They automate birthday and anniversary posts, with reminders, customizable messages and GIFs. Flat tiers by workspace size run from about $20/month (up to 60 users) to about $200/month (up to 400).

Best for: mid-size teams that want a flat-rate announcement bot and don't need signed cards.

4. WishYoo

WishYoo does group card signing: secret messages, scheduled delivery. A free plan covers a few cards per month; paid tiers add unlimited cards on a flat monthly rate.

Card creation is a manual process. Someone notices Sarah's birthday is coming up, opens WishYoo, sets up signers, and schedules delivery. It works just fine for a farewell or a promotion. For a larger team with birthdays spread across the year, that's a part-time job.

Best for: teams that want signing and don't mind creating each card themselves. HuddleCard vs WishYoo.

5. Doozy

Doozy is an employee engagement platform that includes signed birthday and work anniversary cards, plus HRIS sync, onboarding, manager alerts, and analytics. Signing and automation work once dates are in the system.

The Core plan is $199/month flat for up to 350 employees (14-day trial, no credit card). That fits a mid-size company buying a suite. It's a bit much if you mainly want birthday cards for your 25-person team.

Best for: larger companies that want cards inside a full engagement platform.

6. HuddleCard

HuddleCard is group card signing for Slack teams that want automated celebrations without someone playing card coordinator all year. Connect Slack and HuddleCard gets to work collecting birthdays and work start dates from your team. Recurring birthday and work anniversary cards run on an automated annual schedule:

• About a week before the occasion, teammates get a Slack DM (or email) with a link to sign.
• Reminders go out through the week if people haven't signed yet.
• On the occasion date, the honoree receives the card by email and Slack.

Occasion cards (farewells, promotions, thank-yous, and the rest) are created by an admin when you need them. HuddleCard handles notifying signers, collecting messages, and delivering on the date you set. See how automated cards work and occasion cards in the Help Center.

Best for: teams of 10–200 that want signed cards on a schedule for birthdays and anniversaries, with Slack on every plan including Free. Occasional-card teams that don't want a subscription can use HuddleCard Lite instead: prepaid credits at $5 per card, unlimited roster. HuddleCard vs WishYoo · HuddleCard vs Kudoboard.

Which one should you pick?

• Channel post on the day: BirthdayBot or Billy.
• Signed cards, manually created: WishYoo (comparison), Kudoboard if you're not Slack-first (comparison), or HuddleCard Lite if you'd rather pay $5 a card than subscribe.
• Signed cards with automated birthdays for a small or mid-size team: HuddleCard.
• Cards inside a full engagement suite: Doozy.

Two products in one

Some teams run a birthday bot for reminders and a group card app like Kudoboard for messages people keep. That's two subscriptions. The bot still doesn't collect signed cards, so the stack doesn't fully replace an automated celebration tool unless you add HuddleCard or Doozy.

For a 50-person team, BirthdayBot's 21–50 channel tier (Pro, monthly billing) plus Kudoboard Pro runs about $1,300/year ($840 + $449). HuddleCard covers both jobs on one bill for roughly $570/year at typical activity (~30 active users). vs BirthdayBot · vs Kudoboard · vs WishYoo.

What a busy month looks like

Say a 40-person company has three birthdays this month.

With an announcement bot, each birthday shows up as a post in #general. People react. The thread moves on.

With a manual signing tool, someone creates three cards.

With HuddleCard, there's one notification with links to sign all three cards at the start of the week. Teammates get reminders closer to the occasion date, and each honoree receives a card with every message on the day. Nobody had to remember anything.

Common questions