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Developer Tools · head to head

Keil MDK vs TunnelBear

Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Full reviewWebsite
T

TunnelBear

Cybersecurity

Consumer VPN with a limited free tier and a bear-themed, beginner-friendly app

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site; TunnelBear free plan's data cap is small compared to competitors offering more generous free allowances.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

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

Attributes where Keil MDK and TunnelBear differ
AttributeKeil MDKTunnelBear
PlatformsWebwindows, mac, linux, ios, android
CategoryDeveloper ToolsCybersecurity

Identical on both: starting price (Free), pricing model (freemium), 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 Keil MDK

Nothing recorded that TunnelBear does not also cover.

Only in TunnelBear

  • Encrypted VPN tunnel
  • Server location switching
  • GhostBear obfuscation
  • Browser extensions
  • Teams account management

What people use each for

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

Keil MDK

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

TunnelBear

  • Casual browsing protection on public Wi-Finot Keil MDK
  • Occasional geo-unblocking with a light free allowancenot Keil MDK
  • Bypassing network-level VPN blocking via obfuscationnot Keil MDK
  • Managing VPN access for a small team with centralized billingnot Keil MDK

Where each one falls short

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

Keil MDK

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

TunnelBear

  • Free plan's data cap is small compared to competitors offering more generous free allowances.
  • Lacks advanced features like dedicated IP addresses or split-tunneling controls found in some rival VPNs.
  • Server network is smaller than large competitors like NordVPN or ExpressVPN.
  • No standalone router-level app, limiting whole-network protection options.

Pricing, plan by plan

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

TunnelBear

Free
  • FreeFree
    • 2GB of data per month
    • Access to VPN servers
    • Unlimited devices
  • Unlimited$9.99/month
    • Unlimited monthly data
    • All server locations
    • Cheaper on annual/3-year billing
  • Teams$undefined/month
    • Unlimited data
    • 5 connected devices per user
    • Dedicated account manager

Which should you pick?

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Choose TunnelBear if

  • You need encrypted vpn tunnel.
  • You want to start without paying.
  • You work on windows, mac, linux, ios, android.
  • You also want server location switching.
TunnelBear review

Questions people ask

Is Keil MDK or TunnelBear better?
Neither clearly leads. Keil MDK starts at Free and TunnelBear at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keil MDK or TunnelBear?
Keil MDK starts at Free and TunnelBear at Free.
Does Keil MDK or TunnelBear run on more platforms?
Keil MDK runs on Web. TunnelBear runs on windows, mac, linux, ios, android.
Can I use Keil MDK for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keil MDK best used for?
Keil MDK is most often used for embedded software development, arm microcontroller programming, professional development environments. Of those, embedded software development and arm microcontroller programming are not what TunnelBear is typically brought in for.
What can Keil MDK do that TunnelBear cannot?
TunnelBear covers Encrypted VPN tunnel, Server location switching, GhostBear obfuscation, Browser extensions.

Answered from the vendors’ own pages

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
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
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