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Software · head to head

LaunchDarkly vs Logto

LaunchDarkly logo

LaunchDarkly

Software

Ship fast. Rest easy.

From
Free
Rated
-
Full reviewWebsite
Logto logo

Logto

Software

Open-source identity and authentication infrastructure for apps and APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: LaunchDarkly pricing scales rapidly with monthly active users, becoming expensive at scale; Logto advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
  • They diverge on capability: LaunchDarkly covers Feature flags, Logto covers Prebuilt sign-in UI.

Where they differ

Only the attributes on which LaunchDarkly and Logto actually diverge.

Attributes where LaunchDarkly and Logto differ
AttributeLaunchDarklyLogto
Pricing modelUnknownfreemium
PlatformsWeb, Cloud, APIsweb, api
Founded2014Unknown

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 LaunchDarkly

  • Feature flags
  • Progressive rollouts
  • User targeting
  • A/B testing
  • Kill switches
  • Audit log
  • Multi-environment
  • SDKs for all platforms

Only in Logto

  • Prebuilt sign-in UI
  • Social connectors
  • Role-based access control
  • Multi-factor authentication
  • Machine-to-machine apps
  • Audit logs

What people use each for

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

LaunchDarkly

  • Progressive deliverynot Logto
  • Feature experimentationnot Logto
  • Risk mitigationnot Logto
  • Performance optimizationnot Logto
  • Infrastructure migrationnot Logto

Logto

  • Adding sign-in to a new SaaS productnot LaunchDarkly
  • Implementing SSO for B2B customersnot LaunchDarkly
  • Securing internal APIs with M2M tokensnot LaunchDarkly
  • Adding RBAC and organizations to a multi-tenant appnot LaunchDarkly

Where each one falls short

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

LaunchDarkly

  • Pricing scales rapidly with monthly active users, becoming expensive at scale
  • Limited seats for engineers on standard plans, forcing upgrade to enterprise
  • Advanced features like experimentation and audit logs require higher-tier plans
  • Occasional reliability issues and backend delays reported by users

Logto

  • Advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
  • Enterprise pricing is not published and requires contacting sales.
  • Token-based billing can make cost forecasting harder than flat per-MAU pricing for high-traffic apps.

Pricing, plan by plan

LaunchDarkly

Free
  • DeveloperFree
    • Unlimited seats
    • Unlimited feature flags
    • A/B tests and experiments
  • Foundation$undefined/mo
    • $12 per connection
    • $10 per 1K MAU
    • Targeted segmentation
  • Enterprise$undefined/mo
    • Custom pricing
    • Advanced automation
    • Compliance features

Logto

Free
  • FreeFree
    • Up to 50,000 MAU
    • 50K tokens included
    • 3 applications
  • Pro$24/month
    • Unlimited MAU and applications
    • 3 included API resources
    • Passkey sign-in

Which should you pick?

Choose LaunchDarkly if

  • You need feature flags.
  • You want to start without paying.
  • You work on Web, Cloud, APIs.
  • You also want progressive rollouts.
LaunchDarkly review

Choose Logto if

  • You need prebuilt sign-in ui.
  • You want to start without paying.
  • You work on web, api.
  • You also want social connectors.
Logto review

Questions people ask

Is LaunchDarkly or Logto better?
Neither clearly leads. LaunchDarkly starts at Free and Logto at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, LaunchDarkly or Logto?
LaunchDarkly starts at Free and Logto at Free.
Does LaunchDarkly or Logto run on more platforms?
LaunchDarkly runs on Web, Cloud, APIs. Logto runs on web, api.
Can I use LaunchDarkly for free?
Both have a free tier, so you can try either at no cost before committing.
What is LaunchDarkly best used for?
LaunchDarkly is most often used for progressive delivery, feature experimentation, risk mitigation, performance optimization. Of those, progressive delivery and feature experimentation are not what Logto is typically brought in for.
What can LaunchDarkly do that Logto cannot?
LaunchDarkly covers Feature flags, Progressive rollouts, User targeting, A/B testing. Logto covers Prebuilt sign-in UI, Social connectors, Role-based access control, Multi-factor authentication.

Answered from the vendors’ own pages

LaunchDarkly: What does the free Developer plan include?

The free Developer plan includes unlimited seats, unlimited feature flags, A/B tests and experiments, 30 SDKs, 10 million logs and traces, 5,000 session replays and errors, and 14 days of data retention.

Source
Logto: What does Logto cost?

Logto offers a Free plan at $0/month, a Pro plan starting at $24/month with 50K free tokens included, and a custom-priced Enterprise plan. Extra add-ons like RBAC or MFA are billed separately on Pro.

Source
LaunchDarkly: How does LaunchDarkly pricing scale?

Foundation plan pricing is $12 per connection plus $10 per 1,000 Monthly Active Users (MAU). Enterprise and Guardian plans have custom pricing based on usage, advanced features, and compliance requirements.

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

Yes. The Free plan supports up to 50,000 monthly active users, 3 total applications, 1 machine-to-machine app, 3 social connectors, 1 webhook, and 3-day audit log retention.

Source
LaunchDarkly: Does LaunchDarkly integrate with Jira and Slack?

Yes, LaunchDarkly integrates with Jira Cloud, allowing you to link feature flags to Jira issues and create issues from observability data. It also integrates with Slack for flag notifications and allows authorized members to trigger flag changes from Slack.

Source
Logto: How is usage metered?

Logto uses token-based billing: only access tokens issued for authentication and authorization activity are counted, rather than charging purely per MAU.

Source
LaunchDarkly: What is dark launching and how does LaunchDarkly enable it?

Dark launching keeps code changes hidden in production until ready to enable. LaunchDarkly enables this through feature flags that let teams safely test code in production before rolling out to users.

Source
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