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Cybersecurity · head to head

ExpressVPN vs Keil MDK

ExpressVPN logo

ExpressVPN

Cybersecurity

Consumer VPN registered in the British Virgin Islands, owned by Kape Technologies since 2021, with repeated third-party audits.

From
$6.67/month
Free plan
No
Full reviewWebsite
Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Keil MDK has a free tier, so it costs nothing to try first.
  • Each has a real cost: ExpressVPN ownership passed in 2021 to Kape Technologies, formerly Crossrider, whose earlier browser extension platform was widely used to distribute adware, and Kape also owns VPN review publications, so nominally independent rankings a buyer consults may originate inside the same corporate group.; Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ExpressVPN and Keil MDK actually diverge.

Attributes where ExpressVPN and Keil MDK differ
AttributeExpressVPNKeil MDK
Starting price$6.67/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, Desktop, Mobile, ApiWeb
CategoryCybersecurityDeveloper Tools
Founded2009Unknown

Identical on both: 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 ExpressVPN

  • TrustedServer
  • Lightway protocol
  • Repeated external audits
  • Network Lock
  • Split tunnelling
  • Aircove router
  • Threat Manager
  • Private DNS

Only in Keil MDK

Nothing recorded that ExpressVPN does not also cover.

What people use each for

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

ExpressVPN

  • A buyer who wants the largest available body of published third-party audit evidence behind a no-logging claimnot Keil MDK
  • Households wanting whole-network coverage through a router without configuring firmware by handnot Keil MDK
  • Frequent travellers who need connections that survive switching between mobile data and hotel Wi-Fi without droppingnot Keil MDK
  • Non-technical users who want the kill switch and DNS handled correctly by default rather than configurednot Keil MDK

Keil MDK

  • Embedded software developmentnot ExpressVPN
  • ARM microcontroller programmingnot ExpressVPN
  • Professional development environmentsnot ExpressVPN

Where each one falls short

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

ExpressVPN

  • Ownership passed in 2021 to Kape Technologies, formerly Crossrider, whose earlier browser extension platform was widely used to distribute adware, and Kape also owns VPN review publications, so nominally independent rankings a buyer consults may originate inside the same corporate group.
  • In 2021 the company's then chief information officer was named in a United States Department of Justice deferred prosecution agreement over work for a foreign government's offensive cyber programme and remained in post, which is a governance fact that sits uncomfortably alongside a product sold entirely on trust.
  • Audits are point-in-time engagements against an agreed scope, so they establish that specified servers and code matched the stated policy when examined, not that the infrastructure behaves the same way today or under different ownership.
  • Several country locations are virtual, meaning the hardware physically sits elsewhere, and after India's 2022 directive requiring VPN providers to retain subscriber data ExpressVPN withdrew its Indian servers, so an Indian connection is routed through hardware in another country, which matters if you need genuine in-country routing.
  • There is no port forwarding and no dedicated IP option, so seeding torrents, hosting a service behind the tunnel and any inbound connection do not work, and users who need those capabilities have to use a different provider.

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

Pricing, plan by plan

ExpressVPN

$6.67/month
  • 1 Month$12.95/month
    • 8 devices
    • 94 countries
    • Unlimited bandwidth
  • 12 Months$6.67/month
    • All features
    • 3 months free
    • Best value
  • 6 Months$9.99/month
    • All features
    • 30-day guarantee

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Which should you pick?

Choose ExpressVPN if

  • You need trustedserver.
  • You work on Web, Desktop, Mobile, Api.
  • You also want lightway protocol.
ExpressVPN review

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Questions people ask

Is ExpressVPN or Keil MDK better?
Neither clearly leads. ExpressVPN starts at $6.67/month and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ExpressVPN or Keil MDK?
Keil MDK has a free tier; the other does not. Paid plans start at $6.67/month for ExpressVPN and Free for Keil MDK.
Does ExpressVPN or Keil MDK run on more platforms?
ExpressVPN runs on Web, Desktop, Mobile, Api. Keil MDK runs on Web.
Can I use Keil MDK for free?
Yes. Keil MDK has a free tier, so you can try it without paying. ExpressVPN starts at $6.67/month.
What is ExpressVPN best used for?
ExpressVPN is most often used for a buyer who wants the largest available body of published third-party audit evidence behind a no-logging claim, households wanting whole-network coverage through a router without configuring firmware by hand, frequent travellers who need connections that survive switching between mobile data and hotel wi-fi without dropping, non-technical users who want the kill switch and dns handled correctly by default rather than configured. Of those, a buyer who wants the largest available body of published third-party audit evidence behind a no-logging claim and households wanting whole-network coverage through a router without configuring firmware by hand are not what Keil MDK is typically brought in for.
What can ExpressVPN do that Keil MDK cannot?
ExpressVPN covers TrustedServer, Lightway protocol, Repeated external audits, Network Lock.

Answered from the vendors’ own pages

ExpressVPN: Who owns ExpressVPN?

Kape Technologies, which acquired it in 2021. Kape was previously named Crossrider and also owns CyberGhost, Private Internet Access and Zenmate, along with the review sites vpnMentor and Wizcase.

Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
ExpressVPN: Is the British Virgin Islands jurisdiction actually useful?

It has no mandatory data retention law and is outside the Five, Nine and Fourteen Eyes arrangements, which is the reason it was chosen. It also means limited practical legal recourse for a subscriber, so the jurisdiction protects the company's ability to hold no data rather than protecting you against the company.

Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source
ExpressVPN: Has the no-logs claim been audited?

Yes, repeatedly. PwC and KPMG have examined the no-logging claims and the TrustedServer architecture, and Cure53 has reviewed the applications, extension and protocol. The reports are published.

ExpressVPN: Can I torrent with it?

Yes, peer-to-peer traffic is permitted on the network, but there is no port forwarding, so you can download but you cannot accept inbound connections and seeding performance suffers as a result.

ExpressVPN: Does it work in China or similar networks?

Sometimes, using obfuscated connection modes, but no provider can guarantee this and availability changes without warning. Treat it as best effort and have a fallback.

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