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Developer Tools · head to head

Restate vs TunnelBear

Restate logo

Restate

Developer Tools

Durable execution engine in Rust with a free tier and low-latency workflows

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: Restate the runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.; TunnelBear free plan's data cap is small compared to competitors offering more generous free allowances.
  • They diverge on capability: Restate covers Durable execution, TunnelBear covers Encrypted VPN tunnel.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Restate and TunnelBear actually diverge.

Attributes where Restate and TunnelBear differ
AttributeRestateTunnelBear
Pricing modelPer month by durable action countfreemium
PlatformsLinux, macOS, Webwindows, mac, linux, ios, android
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 Restate

  • Durable execution
  • Virtual objects
  • Single binary runtime
  • Multi-language SDKs
  • Workflows and sagas
  • Restate Cloud

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.

Restate

  • Payment or order flows where a crash between two external API calls must not double-charge or lose the ordernot TunnelBear
  • AI agent loops that call tools over minutes or hours and must survive a deployment mid-runnot TunnelBear
  • Replacing hand-rolled retry, idempotency key and outbox code across a set of microservicesnot TunnelBear
  • A small team that wants durable workflows without operating a Temporal cluster and its databasenot TunnelBear

TunnelBear

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

Where each one falls short

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

Restate

  • The runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.
  • Restate Cloud jumps from a free fifty thousand actions straight to 300 US dollars a month for twenty million, so a workload sitting at a few hundred thousand actions pays enterprise-shaped money for hobby-shaped volume.
  • It is a young project against Temporal’s established base, so hiring engineers who already know it is unrealistic and the answer to most questions is in the docs rather than on Stack Overflow.
  • The programming model requires structuring code around durable handlers and virtual objects, which is a genuine rewrite for existing services rather than a library you add.
  • The single-binary simplicity that makes small deployments cheap also means fewer operational knobs at very large scale than a system designed as separable components.

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

Restate

Free
  • FreeFree
    • Fifty thousand durable actions per month
    • No credit card required
    • Community support
  • Starter$300/month
    • Twenty million actions per month
    • Two hundred actions per second, bursting to one thousand
    • Twenty GB storage
  • Pro$1000/month
    • Fifty million actions per month
    • Five hundred actions per second, bursting to two thousand
    • Fifty GB storage
  • Enterprise$undefined/year
    • Negotiated volume
    • Twenty-four seven P0 support
    • 99.99 per cent SLA

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 Restate if

  • You need durable execution.
  • You want to start without paying.
  • You work on Linux, macOS, Web.
  • You also want virtual objects.
Restate 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 Restate or TunnelBear better?
Neither clearly leads. Restate 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, Restate or TunnelBear?
Restate starts at Free and TunnelBear at Free.
Does Restate or TunnelBear run on more platforms?
Restate runs on Linux, macOS, Web. TunnelBear runs on windows, mac, linux, ios, android.
Can I use Restate for free?
Both have a free tier, so you can try either at no cost before committing.
What is Restate best used for?
Restate is most often used for payment or order flows where a crash between two external api calls must not double-charge or lose the order, ai agent loops that call tools over minutes or hours and must survive a deployment mid-run, replacing hand-rolled retry, idempotency key and outbox code across a set of microservices, a small team that wants durable workflows without operating a temporal cluster and its database. Of those, payment or order flows where a crash between two external api calls must not double-charge or lose the order and ai agent loops that call tools over minutes or hours and must survive a deployment mid-run are not what TunnelBear is typically brought in for.
What can Restate do that TunnelBear cannot?
Restate covers Durable execution, Virtual objects, Single binary runtime, Multi-language SDKs. TunnelBear covers Encrypted VPN tunnel, Server location switching, GhostBear obfuscation, Browser extensions.

Answered from the vendors’ own pages

Restate: Is Restate open source?

The SDKs are MIT. The runtime is under a Business Source Licence, which permits self-hosting but not offering it as a competing service.

Restate: How does it compare with Temporal?

Same problem, different shape: one Rust binary with embedded storage instead of a server plus database plus workers, and lower per-step latency.

Restate: Is there a free tier?

Yes, fifty thousand durable actions a month on Restate Cloud with no card required.

Restate: Which languages are supported?

TypeScript, Java, Kotlin, Go, Python and Rust.

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