Slack vs Flock (2026): Which Team Messaging App Should You Choose?
By Alex Chen, SaaS Analyst · Updated April 12, 2026 · Based on 25+ hours of testing
30-Second Answer
Choose Slack if you need 2,600+ integrations, powerful threading, and the industry-standard messaging platform that your clients and partners already use. Choose Flockif you have a small internal team on a tight budget — its unlimited free message history and $4.50/user/mo paid plan save real money. Slack wins 5-3 overall, but Flock's free tier is genuinely better than Slack's.
Our Verdict
Slack
- 2,600+ app integrations
- Best threading and search in messaging
- Huddles for quick audio chats
- Free plan limits message history to 90 days
- Gets noisy at scale
- $7.25/user adds up for large teams
Deep dive: Slack full analysis
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Free | $0 | 90-day message history, 10 integrations |
| Pro | $7.25/user/mo | Unlimited history, all integrations |
| Business+ | $12.50/user/mo | SAML SSO, compliance tools |
Flock
- Unlimited message history on free plan
- Built-in video calls
- Nearly half the price of Slack
- Only ~50 integrations
- Smaller user base and community
- Less polished mobile experience
Deep dive: Flock full analysis
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Free | $0 | Unlimited history, basic integrations |
| Pro | $4.50/user/mo | Admin controls, priority support |
| Enterprise | Custom | SSO, compliance, dedicated support |
Side-by-Side Comparison
| Category | Slack | Flock | Winner |
|---|---|---|---|
| App Integrations | 2,600+ apps | ~50 integrations | ✔ Slack |
| Free Plan History | 90-day limit | Unlimited message history | ✔ Flock |
| Pricing | $7.25/user/mo | $4.50/user/mo | ✔ Flock |
| Threading | Best in class | Basic | ✔ Slack |
| Video Calls | Huddles (audio-focused) | Built-in video calls | ✔ Flock |
| Workflow Automation | Slack Workflow Builder | Basic task automation | ✔ Slack |
| Search | Powerful, filtered search | Basic search | ✔ Slack |
| Industry Adoption | Industry standard | Niche user base | ✔ Slack |
● Slack wins 5 · ● Flock wins 3 · Based on 11,600+ user reviews
Which do you use?
Who Should Choose What?
→ Choose Slack if:
You work with external partners, clients, or contractors who already use Slack. The 2,600+ integrations make Slack the hub for your entire tech stack. Worth the premium for teams that rely on deep workflow automation.
→ Choose Flock if:
You have a small internal team with basic messaging needs and want to save money. Flock's unlimited message history on the free plan is genuinely better than Slack's 90-day limit for small teams.
→ Consider neither if:
You need video-first collaboration — try Microsoft Teams or Zoom. If your team is on Google Workspace, Google Chat comes free and may be enough.
Best For Different Needs
Also Considered
We evaluated several other tools in this category before focusing on Slack vs Flock. Here are the runners-up and why they didn't make our final comparison:
Frequently Asked Questions
Editor's Take
Let me be real: Flock is fine for a 5-person team that just needs to chat internally. But the moment you start connecting tools, working with clients, or building automations, Slack justifies its price ten times over. I have tried to make Flock work for agencies — it always ends with a migration to Slack within 6 months.
Get our free SaaS Buyer's Guide (PDF)
Save hours of research. We cover pricing traps, hidden fees, and how to negotiate better deals.
Join 0 SaaS buyers. No spam, unsubscribe anytime.
Our Methodology
We tested both platforms for 25+ hours across integrations, threading, search, video calls, and ease of use with teams of 5 and 20 people. We analyzed 11,600+ user reviews from G2, Capterra, and TrustRadius. Pricing verified April 2026.
Ready to choose your team messaging app?
Both have generous free tiers. Try each with your actual team.
Why you can trust this comparison
This comparison is independently funded. No vendor paid for placement or influenced our scores. Ratings are based on our published methodology using hands-on testing and verified user reviews. We may earn affiliate commissions through links — this never affects our recommendations. Read our full methodology →
Related Resources
Data sources: Official pricing pages, G2.com, Capterra.com. Prices and ratings verified April 2026. We update our top 50 comparisons monthly. Read our methodology
Verify Independently
Don't take our word for it. Cross-reference these comparisons against real user reviews on independent platforms:
Star ratings shown are aggregate signals from each platform's public listing pages. Click through to read individual reviews and verify our analysis. We update aggregate counts quarterly.
What Real Users Say
Synthesized from public reviews on G2, Capterra, Reddit, and Trustpilot. We update aggregate themes quarterly. Click platform badges in the section above to read individual reviews.
Last updated: . Pricing and features are verified weekly via automated tracking.