Communication & Collaboration · head to head
Flock vs SendGrid

Flock
Communication & Collaboration
Organized team communication platform
- From
- Free
- Rated
- -
SendGrid
Email Marketing
Email at scale, proven deliverability, and so much more
- 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; SendGrid free plan caps at 100 emails per day and expires after 60 days, per twilio.com/en-us/products/email-api/pricing (Aug 2026), after which sending requires a paid plan
Where they differ
Only the attributes on which Flock and SendGrid 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 SendGrid
Nothing recorded that Flock does not also cover.
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 SendGrid
- Running polls, to-dos and reminders inside a chat workspacenot SendGrid
- Video conferencing and screen sharing for small teamsnot SendGrid
SendGrid
No use cases recorded yet. See the SendGrid review.
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
SendGrid
- Free plan caps at 100 emails per day and expires after 60 days, per twilio.com/en-us/products/email-api/pricing (Aug 2026), after which sending requires a paid plan
- Dedicated IP addresses are only included from the Pro plan at $89.95 per month; Essentials at $19.95 per month lacks a dedicated IP, per Twilio's own pricing page
Pricing, plan by plan
Flock
Free- FreeFree
- Unlimited chats
- Channels
- File sharing
- Pro$5/month
- Everything in Free
- Advanced search
- API access
SendGrid
FreeNo published plan breakdown. See the SendGrid review.
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.
Questions people ask
- Is Flock or SendGrid better?
- Neither clearly leads. Flock starts at Free and SendGrid at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Flock or SendGrid?
- Flock starts at Free and SendGrid at Free.
- Does Flock or SendGrid run on more platforms?
- Flock runs on Web, Windows, Macos, Ios, Android. SendGrid runs on Web.
- 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 SendGrid is typically brought in for.
- What can Flock do that SendGrid cannot?
- Flock covers Team chat, Channels, Threads, File sharing.
Related pages
Other head to heads
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- Flock vs Webex by Cisco
- Flock vs Chanty
- Flock vs Chatwork
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- Flock vs Grasshopper
- Flock vs Lark
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- Flock vs TeamViewer
- Flock vs Textline
- Flock vs Twist
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- Flock vs ActiveCampaign
- Flock vs AWeber
- Flock vs Brevo
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- Flock vs Resend
- Flock vs GetResponse
- Flock vs Instantly
- Flock vs Klaviyo
- Flock vs Loops
- Flock vs MailerLite
- Flock vs Mailjet
- Flock vs Omnisend
- Flock vs RD Station Marketing
- SendGrid vs RingCentral Video
- SendGrid vs Novu
- SendGrid vs Webex by Cisco
- SendGrid vs Chanty
- SendGrid vs Chatwork
- SendGrid vs Courier
- SendGrid vs Google Chat
- SendGrid vs Grasshopper
- SendGrid vs Lark
- SendGrid vs Mattermost
- SendGrid vs Quo
- SendGrid vs Rocket.Chat
- SendGrid vs TeamViewer
- SendGrid vs Textline
- SendGrid vs Twist
- SendGrid vs Vowel
- SendGrid vs ActiveCampaign
- SendGrid vs AWeber
- SendGrid vs Brevo
- SendGrid vs EmailOctopus
- SendGrid vs Flodesk
- SendGrid vs Resend
- SendGrid vs GetResponse
- SendGrid vs Instantly
- SendGrid vs Klaviyo
- SendGrid vs Loops
- SendGrid vs MailerLite
- SendGrid vs Mailjet
- SendGrid vs Omnisend
- SendGrid vs RD Station Marketing
