Softwr

Developer Tools · head to head

ConfigCat vs Windscribe

ConfigCat logo

ConfigCat

Developer Tools

Feature flag service priced per flag and environment with unlimited seats and unlimited monthly active users

From
Free
Free plan
Yes
Full reviewWebsite
W

Windscribe

Cybersecurity

VPN and firewall service with a generous free data tier and a customizable Build-A-Plan option

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: ConfigCat there is no experimentation or statistical analysis engine, so teams wanting real A/B tests with significance testing must buy and integrate a separate analytics or experimentation product.; Windscribe free tier's 10GB cap still requires email confirmation and social sharing to unlock, unlike some no-strings-attached competitors.
  • They diverge on capability: ConfigCat covers Feature flags and configuration, Windscribe covers Firewall / default block.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ConfigCat and Windscribe actually diverge.

Attributes where ConfigCat and Windscribe differ
AttributeConfigCatWindscribe
Pricing modelPer month by feature flag and environment countfreemium
PlatformsWeb, API, iOS, Android, Node.js, .NET, Java, Python, Gowindows, mac, linux, ios, android, web
CategoryDeveloper ToolsCybersecurity

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 ConfigCat

  • Feature flags and configuration
  • Percentage rollouts
  • Targeting rules and segments
  • Unlimited seats
  • Global CDN delivery
  • Audit log
  • Public API and webhooks
  • SDKs across languages

Only in Windscribe

  • Firewall / default block
  • Unlimited simultaneous devices
  • Build-A-Plan
  • R.O.B.E.R.T. content blocker
  • Static IP and port forwarding add-ons

What people use each for

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

ConfigCat

  • A consumer or mobile app with millions of users where per-MAU flag pricing would cost more than the flags are worthnot Windscribe
  • A team that wants every engineer, product manager and support agent to have a login without paying per seatnot Windscribe
  • Decoupling deployment from release with percentage rollouts and a kill switch, without buying an experimentation platformnot Windscribe
  • A small team that needs ten flags permanently and can run indefinitely on the free tiernot Windscribe

Windscribe

  • Running a free VPN across unlimited personal devicesnot ConfigCat
  • Buying access to just a few specific server locations cheaplynot ConfigCat
  • Blocking ads and trackers at the DNS level while browsingnot ConfigCat
  • Preventing IP leaks with a default-block firewall rulenot ConfigCat

Where each one falls short

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

ConfigCat

  • There is no experimentation or statistical analysis engine, so teams wanting real A/B tests with significance testing must buy and integrate a separate analytics or experimentation product.
  • Pricing by flag count punishes exactly the hygiene you want: the Pro tier caps at 100 flags, so teams that do not aggressively retire stale flags are pushed to the 325 dollar Smart tier for housekeeping reasons rather than growth.
  • The free tier allows only 2 environments, which does not cover the common development, staging and production split, so almost any real deployment starts on a paid plan.
  • It is a smaller vendor than the category incumbents, so enterprise procurement teams will find less depth in compliance attestations, contractual terms and reference architecture than LaunchDarkly offers.
  • Flag evaluation relies on SDK-side caching of a CDN-delivered config, which is fast but means propagation of a change is eventually consistent rather than instant, something to understand before relying on it as an emergency kill switch.

Windscribe

  • Free tier's 10GB cap still requires email confirmation and social sharing to unlock, unlike some no-strings-attached competitors.
  • Build-A-Plan's low cost only covers selected locations, so broad global coverage still requires the full Pro plan.
  • Server speeds and streaming reliability are inconsistent compared to larger premium VPN providers.
  • Customer support is primarily ticket/community-based rather than live chat for lower tiers.

Pricing, plan by plan

ConfigCat

Free
  • Forever FreeFree
    • 10 feature flags
    • 2 environments and 2 products
    • 2 segments
  • Pro$110/month
    • 100 feature flags
    • 3 environments and 3 products
    • Unlimited seats and MAUs
  • Smart$325/month
    • Unlimited feature flags
    • Unlimited environments, products and segments
    • Unlimited seats and MAUs
  • Enterprise$900/month
    • Everything in Smart
    • Enterprise support and controls
    • Unlimited everything on flag counts

Windscribe

Free
  • FreeFree
    • 10GB of data per month with confirmed email
    • 10 server countries
    • Unlimited devices
  • Build-A-Plan$3/month
    • Pay per selected server location ($1/location)
    • $3 minimum purchase
    • Unlimited data on selected locations
  • Pro$9/month
    • Unlimited data
    • 69+ countries
    • $69/year on annual billing

Which should you pick?

Choose ConfigCat if

  • You need feature flags and configuration.
  • You want to start without paying.
  • You work on Web, API, iOS, Android, Node.js, .NET, Java, Python, Go.
  • You also want percentage rollouts.
ConfigCat review

Choose Windscribe if

  • You need firewall / default block.
  • You want to start without paying.
  • You work on windows, mac, linux, ios, android, web.
  • You also want unlimited simultaneous devices.
Windscribe review

Questions people ask

Is ConfigCat or Windscribe better?
Neither clearly leads. ConfigCat starts at Free and Windscribe at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ConfigCat or Windscribe?
ConfigCat starts at Free and Windscribe at Free.
Does ConfigCat or Windscribe run on more platforms?
ConfigCat runs on Web, API, iOS, Android, Node.js, .NET, Java, Python, Go. Windscribe runs on windows, mac, linux, ios, android, web.
Can I use ConfigCat for free?
Both have a free tier, so you can try either at no cost before committing.
What is ConfigCat best used for?
ConfigCat is most often used for a consumer or mobile app with millions of users where per-mau flag pricing would cost more than the flags are worth, a team that wants every engineer, product manager and support agent to have a login without paying per seat, decoupling deployment from release with percentage rollouts and a kill switch, without buying an experimentation platform, a small team that needs ten flags permanently and can run indefinitely on the free tier. Of those, a consumer or mobile app with millions of users where per-mau flag pricing would cost more than the flags are worth and a team that wants every engineer, product manager and support agent to have a login without paying per seat are not what Windscribe is typically brought in for.
What can ConfigCat do that Windscribe cannot?
ConfigCat covers Feature flags and configuration, Percentage rollouts, Targeting rules and segments, Unlimited seats. Windscribe covers Firewall / default block, Unlimited simultaneous devices, Build-A-Plan, R.O.B.E.R.T. content blocker.

Answered from the vendors’ own pages

ConfigCat: How is ConfigCat priced?

By feature flag, environment and product count. Seats, monthly active users and flag reads are unlimited on every plan.

ConfigCat: Is the free tier usable?

For small projects yes, but at 10 flags and 2 environments it will not cover a dev, staging and production setup.

ConfigCat: Can it run A/B tests?

It can split traffic, but there is no statistics engine. You need a separate analytics tool to decide a winner.

ConfigCat: How fast does a flag change take effect?

SDKs poll and cache, so changes propagate on the polling interval rather than instantly.

Share

Related pages

More on ConfigCat

More on Windscribe

Keep looking

Other head to heads