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Developer Tools · head to head

Blacksmith vs ProtoPie

Blacksmith logo

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From
Free
Free plan
Yes
Visit BlacksmithFull review
ProtoPie logo

ProtoPie

Design

Create advanced interactive prototypes

From
Free
Free plan
Yes
Visit ProtoPieFull review

The short version

  • Blacksmith is a GitHub Actions runner service; ProtoPie is a tool for creating highly interactive prototypes without coding.
  • Free plans on both; paid from $0.004/mo and $25/mo.
  • Only Blacksmith lists bare metal runners; only ProtoPie lists interactive prototyping.
  • Where Blacksmith falls short: per-minute pricing model requires estimating usage to predict costs.
  • Where ProtoPie falls short: the free plan allows 2 prototypes, 8 scenes per prototype and 50MB of cloud storage.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Blacksmith and ProtoPie actually diverge.

Attributes where Blacksmith and ProtoPie differ
AttributeBlacksmithProtoPie
PlatformsGitHub Actions, Linux, Windows, macOSWindows, macOS, Web, iOS, Android
CategoryDeveloper ToolsDesign

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: pricing model for Blacksmith, founded for Blacksmith.

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 Blacksmith

  • Bare metal runners
  • Multiple OS support
  • ARM support
  • Docker layer caching
  • Sticky disks
  • GitHub Actions observability
  • Free tier
  • Static IPs

Only in ProtoPie

  • Interactive prototyping
  • Data binding
  • Advanced interactions
  • Animation
  • Collaboration
  • Cloud sharing
  • Device testing
  • Code export

What people use each for

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

Blacksmith

  • Replacing GitHub Actions runners with faster, cheaper infrastructurenot ProtoPie
  • Accelerating CI build times for organizations with heavy CI loadnot ProtoPie
  • Reducing cloud spend on GitHub Actions by 60% or morenot ProtoPie
  • Supporting ARM architecture builds without GitHub runnersnot ProtoPie

ProtoPie

  • Interactive prototype designnot Blacksmith
  • User testing and handoff managementnot Blacksmith
  • Team design collaborationnot Blacksmith

Where each one falls short

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

Blacksmith

  • Per-minute pricing model requires estimating usage to predict costs
  • macOS M4 pricing ($0.08/min) is significantly higher than GitHub Actions
  • Docker layer caching and sticky disks are paid add-ons at $0.50/GB/mo
  • Static IP add-on costs $100/IP/mo

ProtoPie

  • The free plan allows 2 prototypes, 8 scenes per prototype and 50MB of cloud storage
  • Free prototypes carry a watermark and shareable links require the Basic plan
  • Saving prototypes locally requires the Pro plan
  • Team libraries and handoff recordings require the Pro plan
  • Basic caps storage at 500MB and prototypes at 20
  • Single sign on, private servers, custom fonts and custom hardware integrations are Enterprise only
  • Enterprise requires a minimum of 3 seats and is priced by quote
  • Connect Core is a paid add on at $20 per user per month

Pricing, plan by plan

Blacksmith

Free
  • Ubuntu x64$0.004/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Ubuntu ARM$0.0025/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Windows x64$0.008/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • macOS M4$0.08/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads

ProtoPie

Free
  • FreeFree
    • 2 prototypes
    • 8 scenes per prototype
    • 50MB cloud storage
  • Basic$25/mo
    • 20 prototypes
    • 10 scenes per prototype
    • 500MB storage
  • Pro$47/mo
    • Unlimited prototypes
    • Unlimited handoff recordings
    • 5GB team storage

Which should you pick?

Choose Blacksmith if

  • You need bare metal runners.
  • You want to start without paying.
  • You work on GitHub Actions, Linux, Windows, macOS.
  • You also want multiple os support.
Blacksmith review

Choose ProtoPie if

  • You need interactive prototyping.
  • You want to start without paying.
  • You work on Windows, macOS, Web, iOS, Android.
  • You also want data binding.
ProtoPie review

Questions people ask

Is Blacksmith or ProtoPie better?
Neither clearly leads. Blacksmith starts at Free and ProtoPie at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or ProtoPie?
Blacksmith starts at Free and ProtoPie at Free.
Does Blacksmith or ProtoPie run on more platforms?
Blacksmith runs on GitHub Actions, Linux, Windows, macOS. ProtoPie runs on Windows, macOS, Web, iOS, Android.
Can I use Blacksmith for free?
Both have a free tier, so you can try either at no cost before committing.
What is Blacksmith best used for?
Blacksmith is most often used for replacing github actions runners with faster, cheaper infrastructure, accelerating ci build times for organizations with heavy ci load, reducing cloud spend on github actions by 60% or more, supporting arm architecture builds without github runners. Of those, replacing github actions runners with faster, cheaper infrastructure and accelerating ci build times for organizations with heavy ci load are not what ProtoPie is typically brought in for.
What can Blacksmith do that ProtoPie cannot?
Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. ProtoPie covers Interactive prototyping, Data binding, Advanced interactions, Animation.

Answered from the vendors’ own pages

Blacksmith: How much do Blacksmith runners cost compared to GitHub Actions?

Blacksmith offers 60-75% cost savings depending on OS. Ubuntu x64 costs $0.004/min vs GitHub at $0.012/min. All plans include 3,000 free minutes monthly.

Source
ProtoPie: How much does ProtoPie cost?

ProtoPie offers a free plan ($0/month), Basic at $25/month, and Pro at $47/month per editor. Annual billing offers up to 26% savings. Enterprise pricing is custom for minimum 3 seats.

Source
Blacksmith: Can I use Docker layer caching with Blacksmith?

Yes, Docker layer caching is available as an add-on at $0.50/GB/mo. Managed Docker layer persistence is included with the base service.

Source
ProtoPie: Is there a free version of ProtoPie?

Yes. The free plan includes 2 prototypes, 8 scenes per prototype, and 50MB cloud storage. Perfect for trying the platform.

Source
Blacksmith: What is the SLA for Enterprise plans?

Enterprise Blacksmith plans include a 99.9% SLA guarantee along with 24/7 priority support, dedicated Slack channels, white-glove onboarding, and CI optimization support.

Source
ProtoPie: What is included in the Pro plan?

Pro plan at $47/month includes unlimited prototypes, unlimited handoff recordings, 5GB team storage, local saving, and team libraries per editor.

Source
ProtoPie: What add-on products does ProtoPie offer?

Connect Core ($20/month per user), Connect Enterprise and Connect Embedded (custom pricing), and User Testing (custom pricing, annual-only for Pro plan users).

Source
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