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Ably vs Strapi

Ably logo

Ably

Software

Realtime data delivery platform for pub/sub messaging at scale

From
Free
Rated
-
Full reviewWebsite
Strapi logo

Strapi

Software

Headless CMS with REST and GraphQL APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ably standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.; Strapi cloud pricing is per project, not per account, so a second project doubles the bill
  • They diverge on capability: Ably covers Pub/sub messaging, Strapi covers REST API.

Where they differ

Only the attributes on which Ably and Strapi actually diverge.

Attributes where Ably and Strapi differ
AttributeAblyStrapi
Pricing modelfreemiumopen-source
Platformsweb, ios, android, apiNode.js, Cloud, Self-hosted, Docker
FoundedUnknown2015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 Ably

  • Pub/sub messaging
  • Presence
  • Message persistence
  • Multi-protocol support
  • Encryption
  • Datadog integration

Only in Strapi

  • REST API
  • GraphQL API
  • Content management
  • PostgreSQL
  • MySQL
  • MongoDB
  • AWS
  • Webhooks

What people use each for

The jobs each tool is most often brought in to do.

Ably

  • Building realtime chat or collaborative appsnot Strapi
  • Delivering live data feeds like stock prices or sports scoresnot Strapi
  • Broadcasting notifications to many concurrent clientsnot Strapi
  • Running mission-critical realtime infrastructure with high uptime SLAsnot Strapi

Strapi

  • Running a self hosted headless CMS with a REST or GraphQL APInot Ably
  • Giving editors a content admin panel over a custom content modelnot Ably

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Ably

  • Standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.
  • The jump from Standard ($29/month) to Pro ($399/month) is steep for teams needing more than 10k connections but not full Pro capacity.
  • 24/7 mission-critical support and 99.999% uptime SLAs are reserved for the custom-priced Enterprise tier.

Strapi

  • Cloud pricing is per project, not per account, so a second project doubles the bill
  • Starter at $35 a month allows 100,000 API requests, and overage is $1.50 per 25,000
  • Extra bandwidth is $30 per 100 GB and extra asset storage $0.60 per GB
  • Backups start at the Pro plan, weekly, and only become daily at Business
  • An uptime SLA is Business only, at $450 a month per project
  • Additional environments cost $60 a month on Pro and $300 a month on Business

Pricing, plan by plan

Ably

Free
  • FreeFree
    • 200 concurrent connections
    • 500 messages/second
    • 6M messages/month
  • Standard$29/month
    • 10k concurrent channels
    • 10k concurrent connections
    • 2.5k messages/second
  • Pro$399/month
    • 50k concurrent channels
    • 50k concurrent connections
    • 10k messages/second

Strapi

Free
  • CommunityFree
    • Self-hosted Strapi
    • Community support
  • Pro$99/monthly
    • Cloud hosting
    • Advanced features
    • Priority support
  • Business$undefined/monthly
    • Enterprise features
    • Custom SLA
    • Dedicated support

Which should you pick?

Choose Ably if

  • You need pub/sub messaging.
  • You want to start without paying.
  • You work on web, ios, android, api.
  • You also want presence.
Ably review

Choose Strapi if

  • You need rest api.
  • You want to start without paying.
  • You work on Node.js, Cloud, Self-hosted, Docker.
  • You also want graphql api.
Strapi review

Questions people ask

Is Ably or Strapi better?
Neither clearly leads. Ably starts at Free and Strapi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ably or Strapi?
Ably starts at Free and Strapi at Free.
Does Ably or Strapi run on more platforms?
Ably runs on web, ios, android, api. Strapi runs on Node.js, Cloud, Self-hosted, Docker.
Can I use Ably for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ably best used for?
Ably is most often used for building realtime chat or collaborative apps, delivering live data feeds like stock prices or sports scores, broadcasting notifications to many concurrent clients, running mission-critical realtime infrastructure with high uptime slas. Of those, building realtime chat or collaborative apps and delivering live data feeds like stock prices or sports scores are not what Strapi is typically brought in for.
What can Ably do that Strapi cannot?
Ably covers Pub/sub messaging, Presence, Message persistence, Multi-protocol support. Strapi covers REST API, GraphQL API, Content management, PostgreSQL.

Answered from the vendors’ own pages

Ably: What does Ably cost?

Ably offers a free plan with 200 concurrent connections, a Standard plan at $29/month plus usage, a Pro plan at $399/month plus usage, and custom Enterprise pricing with unlimited channels and connections.

Source
Ably: Is there a free plan, and what are its limits?

Yes, the free plan includes 200 concurrent connections, 500 messages per second, and 6 million messages per month with community and best-effort email support.

Source
Ably: How is usage metered?

Beyond plan limits, Ably charges usage-based rates of $2.50 per million messages, $1.00 per million connection minutes, $1.00 per million channel minutes, and $0.25 per GiB of data transfer, with volume discounts available.

Source
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