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SPECIFICTION
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23blocks vs Convex

23blocks

23blocks.com

Convex

convex.dev

Side by side

Figure23blocksConvex
Price from$29.99/mo$25/mo
Free planYesYes
Free trial——
Open source——
WebYesYes
iOS—Yes
Android—Yes
APIYesYes
Self-hostedYesYes
Plans published103
Spec score · Backend as a Service (BaaS) Software8.4 (#3)8.4 (#5)
IntegrationsThe platform page lists Stripe, OpenAI, Google, AWS and SendGrid as third-party integrations and says users can add any third-party API key.Convex lists built-in integrations for Sentry, Datadog, Airbyte, and Fivetran.
Open sourceThe page says every block became fully open source on July 31, 2026, and that users pay to run the software rather than for the software itself.The Convex backend is open source and can be cloned, built, and run on a developer’s own hardware.
SecurityThe DPA describes TLS 1.2 minimum and TLS 1.3 preferred for data in transit, AES-256 or equivalent encryption at rest, least-privilege IAM and required MFA for administrative access.Customer data is encrypted at rest with 256-bit AES, data in transit uses TLS and SSH, and Convex conducts third-party penetration tests at least annually.
SupportThe pricing page says the 1.5× deployment multiplier covers provisioning, monitoring, upgrades and support for dedicated single-tenant deployments.The Professional plan includes email support, while Convex directs users with questions to its Discord community.

Plans

23blocks

  • Shared Cloud free tierFree
  • Content$29.99 a month
  • Forms$29.99 a month
  • Onboarding$29.99 a month
  • Auth$39.99 a month
  • CRM$69.99 a month
  • Files$69.99 a month
  • Products$69.99 a month
  • Rewards$69.99 a month
  • Sales$69.99 a month

23blocks pricing →

Convex

  • Free & StarterFree
  • Professional$25 a month
  • Business & Enterprise$2,500 a month

Convex pricing →

In their own words

23blocks

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Convex

Convex has no write-up on Specifiction yet; its figures are above.

Visit convex.dev