Millie is the #141 ranked social & fun app on Slack, as a paid app, as of Sep 11, 2026.
AppRanks data: Millie ranks #141 in Social & Fun on Slack Marketplace, placing it in the top 48% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
Millie is a newly-listed Slack app with a limited review volume. It is listed in the Social & Fun category on Slack Marketplace, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. no published reviews yet means feature claims are unverified by the wider merchant base. Without a published review base, the only fit-signal available is the developer's own documentation plus the marketplace's listing-quality audit (linked below). Paid-only pricing means evaluating fit on the marketplace listing or via the developer's documentation before installing. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Slack Marketplace listing.
Pros
- No standout positives based on current data signals.
Cons
- −No public reviews yet — fit and reliability are unverified
- −Paid-only pricing (Paid) — evaluation requires committing payment details
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About Millie
How Millie works
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Give back on Slack. Engage your team around giving back: Match donations Volunteer Run fundraising campaigns Track it all on your team dashboard ▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴
Build a social impact program and engage your team where they are With easy access commands, monthly messages, celebratory milestones, and more, the Millie Slack app helps you build a community around giving back. Boost employee engagement and connect your remote, hybrid, and in-person teams and donate to nonprofits around the globe. Leverage over 1.7 million nonprofits on Millie, and give to charity with your team. ▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴ Donation matching on Slack Thinking about rolling out a donation match program with your team? Millie and the Millie Slack app help you drive employee engagement rates up and on budget. Find volunteer opportunities and coordinate within Slack Easily create, manage, and coordinate your volunteer programs with Millie and the Millie Slack app. Bring sign ups to life and coordinate around events within Slack channels. Build campaigns & build community Mobilize employees around particular events or causes. With a flexible design, Millie lets you build campaigns around specific nonprofits or launch new initiatives to spearhead social impact goals. Have all of your campaigns come to life within Slack. ▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴▴ Find out how you can use Millie to build community + engage your team: Learn more about Millie for Slack
Screenshots
Category rankings
As of Sep 22, 2026- Social & Fun#141of 297Top 48%
- Office Management#171of 284Top 61%
- HR & Team Culture#327of 603Top 55%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Competitors & alternatives
Millie doesn't have curated competitor matchups yet. Other tracked social & fun apps on Slack:
Where Millie stands in the Social & Fun category
Millie ranks #141 of 297 apps in the Social & Fun category, placing it in the top 48% of the listing.
Frequently asked questions
What is Millie?
Millie is an app for Slack. It is published on Slack Marketplace and tracked by AppRanks, and AppRanks has been tracking its public marketplace data on the refresh cadence published in our methodology. It is listed under the Social & Fun category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space.
Is Millie free?
Millie does not offer a permanent free plan on Slack. Pricing starts at Paid. Trial availability and exact billing terms are mirrored from the live Slack listing and may change between refresh cycles, so always confirm the headline price on the source marketplace before installing.
Who uses Millie?
Millie is actively installed across Slack stores tracked by AppRanks. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Social & Fun category on Slack.
Where does Millie rank on Slack?
Millie currently sits at position #141 in the Social & Fun category on Slack. That places it in the top 47% of 297 apps tracked in the same category. Category positions are read from the live marketplace ranking and refresh on each scrape, so the number you see here reflects the most recent crawl rather than a long-running average.