Communication & Collaboration · head to head
Flock vs Resend

Flock
Communication & Collaboration
Organized team communication platform
- From
- Free
- Rated
- -

Resend
Email Marketing
Email API for developers to send transactional and marketing email
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Flock the Starter plan only makes the most recent 10,000 messages searchable and caps public channels at 10; Resend free tier is capped at 100 emails per day, which is restrictive for apps with bursty transactional volume.
- They diverge on capability: Flock covers Team chat, Resend covers Email API and SDKs.
Where they differ
Only the attributes on which Flock and Resend actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Flock
- Team chat
- Channels
- Threads
- File sharing
- Polls
- Integrations
- Mobile apps
- Slack
Only in Resend
- Email API and SDKs
- Domain management
- Audience and contacts
- Automation workflows
- Email analytics
- Dedicated IPs
What people use each for
The jobs each tool is most often brought in to do.
Flock
- Team messaging with channels, direct messages and file sharingnot Resend
- Running polls, to-dos and reminders inside a chat workspacenot Resend
- Video conferencing and screen sharing for small teamsnot Resend
Resend
- Sending transactional emails from a web appnot Flock
- Running marketing email campaigns to contact listsnot Flock
- Automating onboarding or lifecycle email sequencesnot Flock
- Tracking deliverability and engagement analyticsnot Flock
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Flock
- The Starter plan only makes the most recent 10,000 messages searchable and caps public channels at 10
- Starter storage is 5 GB for the entire team, against 10 GB per member on Pro and 20 GB per member on Enterprise
- Starter allows a single team admin and a single approved domain
- Group video calls and screen sharing require the Pro plan; Starter is limited to 1-1 video calls
- Group video calls are capped at 20 participants even on Enterprise
- Single Sign-On and Active Directory sync are Enterprise only
- Enterprise is quote only, with no published rate, and is positioned for organisations with 100 or more members
- Unlimited auto-join and announcement channels require Enterprise; Starter and Pro get one of each
Resend
- Free tier is capped at 100 emails per day, which is restrictive for apps with bursty transactional volume.
- Marketing and transactional plans are billed and priced separately, so a product needing both must budget for two tiers.
- Dedicated IPs are only available on the Scale plan and require a minimum daily send volume.
Pricing, plan by plan
Flock
Free- FreeFree
- Unlimited chats
- Channels
- File sharing
- Pro$5/month
- Everything in Free
- Advanced search
- API access
Resend
Free- FreeFree
- 3,000 emails/month
- 100 emails/day
- 3 domains
- Pro$20/month
- 50,000 emails/month
- 10 domains
- 100 AI credits/month
- Scale$90/month
- 100,000 emails/month
- 1,000 domains
- Slack and ticket support
Which should you pick?
Choose Flock if
- You need team chat.
- You want to start without paying.
- You work on Web, Windows, Macos, Ios, Android.
- You also want channels.
Choose Resend if
- You need email api and sdks.
- You want to start without paying.
- You work on web, api.
- You also want domain management.
Questions people ask
- Is Flock or Resend better?
- Neither clearly leads. Flock starts at Free and Resend at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Flock or Resend?
- Flock starts at Free and Resend at Free.
- Does Flock or Resend run on more platforms?
- Flock runs on Web, Windows, Macos, Ios, Android. Resend runs on web, api.
- Can I use Flock for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Flock best used for?
- Flock is most often used for team messaging with channels, direct messages and file sharing, running polls, to-dos and reminders inside a chat workspace, video conferencing and screen sharing for small teams. Of those, team messaging with channels, direct messages and file sharing and running polls, to-dos and reminders inside a chat workspace are not what Resend is typically brought in for.
- What can Flock do that Resend cannot?
- Flock covers Team chat, Channels, Threads, File sharing. Resend covers Email API and SDKs, Domain management, Audience and contacts, Automation workflows.
Answered from the vendors’ own pages
Resend: What does Resend cost?
Transactional email starts free for 3,000 emails/month, then Pro is $20/month for 50,000 emails and Scale ranges from $90 to $1,150/month for up to 2.5M emails. Marketing email is priced separately by contact count, starting free for 1,000 contacts.
SourceResend: Is there a free plan, and what are its limits?
Yes, the free transactional plan allows 3,000 emails per month capped at 100 per day across 3 domains, and the free marketing plan allows up to 1,000 contacts.
SourceResend: How is usage metered?
Transactional plans are metered by number of emails sent, with overage billed per 1,000 emails. Marketing plans are metered by number of contacts rather than emails sent.
SourceRelated pages
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- Resend vs Novu
- Resend vs Webex by Cisco
- Resend vs Chanty
- Resend vs Chatwork
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- Resend vs Google Chat
- Resend vs Grasshopper
- Resend vs Lark
- Resend vs Mattermost
- Resend vs Quo
- Resend vs Rocket.Chat
- Resend vs TeamViewer
- Resend vs Textline
- Resend vs Twist
- Resend vs Vowel
- Resend vs ActiveCampaign
- Resend vs AWeber
- Resend vs Brevo
- Resend vs EmailOctopus
- Resend vs Flodesk
- Resend vs GetResponse
- Resend vs Instantly
- Resend vs Klaviyo
- Resend vs Loops
- Resend vs MailerLite
- Resend vs Mailjet
- Resend vs Omnisend
- Resend vs RD Station Marketing
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