Softwr

Technology · head to head

Safari vs ConfigCat

Safari logo

Safari

Technology

Apple's WebKit browser, available only on Apple operating systems and updated only with them.

From
Free
Free plan
Yes
Full reviewWebsite
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

The short version

  • Each has a real cost: Safari it runs only on Apple operating systems; there has been no Windows build since 2012 and none for Linux or Android, so any team that must verify Safari behaviour has to buy Mac hardware or rent it from a device cloud, which is a line item Chrome and Firefox do not create.; 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.
  • They diverge on capability: Safari covers WebKit engine, ConfigCat covers Feature flags and configuration.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Safari and ConfigCat actually diverge.

Attributes where Safari and ConfigCat differ
AttributeSafariConfigCat
Pricing modelfreePer month by feature flag and environment count
PlatformsWebWeb, API, iOS, Android, Node.js, .NET, Java, Python, Go
CategoryTechnologyDeveloper Tools

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 Safari

  • WebKit engine
  • Intelligent Tracking Prevention
  • Energy optimisation
  • iCloud Private Relay
  • Passkeys in iCloud Keychain
  • Handoff and tab sync
  • Profiles and Tab Groups
  • Web Inspector

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

What people use each for

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

Safari

  • Getting the longest battery life out of a MacBook, where the difference against Chromium browsers is hours rather than minutesnot ConfigCat
  • Debugging a site on a real iPhone or iPad, which requires Safari's Web Inspector connected over USB from a Macnot ConfigCat
  • An all-Apple household or team that wants tabs, passwords and passkeys to follow them across devices without a third-party accountnot ConfigCat
  • Privacy-conscious users on iCloud+ who want tracking protection and Private Relay working by default rather than through extensionsnot ConfigCat

ConfigCat

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

Where each one falls short

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

Safari

  • It runs only on Apple operating systems; there has been no Windows build since 2012 and none for Linux or Android, so any team that must verify Safari behaviour has to buy Mac hardware or rent it from a device cloud, which is a line item Chrome and Firefox do not create.
  • Safari's version is bound to the operating system's version, so a Mac that has fallen off the supported macOS list stops receiving Safari updates altogether; the browser's security life is the machine's OS life, roughly three years of updates after the last major release it can run.
  • Distributing an extension means packaging it inside a signed macOS application and shipping it through the App Store with a paid Apple Developer Program membership, which makes a small internal or single-team extension impractical.
  • Automated testing uses safaridriver, which runs on macOS only, has no headless mode and permits one session per machine, so Safari coverage in CI means real Macs in the pipeline rather than containers, and it does not parallelise the way Chromium does.
  • Web platform features generally land in WebKit later than in Blink and Gecko, so Safari's current support is in practice the compatibility floor for any project, and a feature you can use everywhere else may be a year away here.
  • Enterprise management is thin: configuration profiles cover a modest set of settings with nothing comparable to the several hundred administrative policies Chrome and Edge expose, so a managed fleet cannot control Safari to the same degree.

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.

Pricing, plan by plan

Safari

Free

No published plan breakdown. See the Safari review.

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

Which should you pick?

Choose Safari if

  • You need webkit engine.
  • You want to start without paying.
  • You also want intelligent tracking prevention.
Safari review

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

Questions people ask

Is Safari or ConfigCat better?
Neither clearly leads. Safari starts at Free and ConfigCat at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Safari or ConfigCat?
Safari starts at Free and ConfigCat at Free.
Does Safari or ConfigCat run on more platforms?
Safari runs on Web. ConfigCat runs on Web, API, iOS, Android, Node.js, .NET, Java, Python, Go.
Can I use Safari for free?
Both have a free tier, so you can try either at no cost before committing.
What is Safari best used for?
Safari is most often used for getting the longest battery life out of a macbook, where the difference against chromium browsers is hours rather than minutes, debugging a site on a real iphone or ipad, which requires safari's web inspector connected over usb from a mac, an all-apple household or team that wants tabs, passwords and passkeys to follow them across devices without a third-party account, privacy-conscious users on icloud+ who want tracking protection and private relay working by default rather than through extensions. Of those, getting the longest battery life out of a macbook, where the difference against chromium browsers is hours rather than minutes and debugging a site on a real iphone or ipad, which requires safari's web inspector connected over usb from a mac are not what ConfigCat is typically brought in for.
What can Safari do that ConfigCat cannot?
Safari covers WebKit engine, Intelligent Tracking Prevention, Energy optimisation, iCloud Private Relay. ConfigCat covers Feature flags and configuration, Percentage rollouts, Targeting rules and segments, Unlimited seats.

Answered from the vendors’ own pages

Safari: Can I run Safari on Windows or Linux?

No. The last Windows version was Safari 5.1.7 in 2012 and it is long unsupported. There has never been a Linux build. Testing Safari requires macOS, either your own or a rented cloud device.

ConfigCat: How is ConfigCat priced?

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

Safari: How do I test my site in Safari without a Mac?

Through a cloud device farm such as BrowserStack, Sauce Labs or LambdaTest, which run real macOS and iOS instances. There is no reliable local emulation, because other browsers on Windows and Linux do not use WebKit.

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.

Safari: Are other iPhone browsers really different from Safari?

Historically no: Apple required all iOS browsers to use WebKit, so Chrome and Firefox on iPhone were interface shells around Safari's engine. The EU's Digital Markets Act now permits alternative engines, but adoption is limited, so in practice iOS testing still means WebKit.

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.

Safari: Why does Safari not get a new version on my old Mac?

Safari ships with the operating system. When a Mac can no longer run a macOS version that Apple still updates, Safari stops updating too, including its security fixes.

ConfigCat: How fast does a flag change take effect?

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

Safari: What does it cost?

Nothing. It is included with Apple operating systems. Private Relay requires an iCloud+ subscription, and publishing an extension requires a paid Apple Developer Program membership.

Share

Related pages

More on Safari

More on ConfigCat

Keep looking

Other head to heads