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Design · head to head

Proto.io vs Sourcegraph

Proto.io logo

Proto.io

Design

Hosted high-fidelity prototyping with device preview and no code

From
On request
Free plan
No
Visit Proto.ioFull review
Sourcegraph logo

Sourcegraph

Developer Tools

Code search and intelligence platform for large codebases with Cody AI assistant

From
$16000/year
Free plan
No
Visit SourcegraphFull review

The short version

  • Sourcegraph is an enterprise code intelligence platform.
  • Sourcegraph starts at $16000/yr; Proto.io prices on request.
  • Where Sourcegraph falls short: enterprise pricing starting at $16k annually creates significant barrier for small teams.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Proto.io and Sourcegraph actually diverge.

Attributes where Proto.io and Sourcegraph differ
AttributeProto.ioSourcegraph
Starting priceOn request$16000/year
Pricing modelPer user per monthSubscription
PlatformsWeb, iOS, AndroidWeb, Self-hosted
CategoryDesignDeveloper Tools

Identical on both: free tier (No).

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 Proto.io

  • Event and condition system
  • Timeline animation
  • Device preview
  • Component library
  • User testing integration
  • Design import

Only in Sourcegraph

Nothing recorded that Proto.io does not also cover.

What people use each for

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

Proto.io

  • Running usability tests where the prototype must respond to real input rather than replay a fixed click pathnot Sourcegraph
  • Demonstrating a form-heavy or data-driven flow to stakeholders before any code existsnot Sourcegraph
  • Testing a mobile interaction on the physical device it is designed for, with correct gesture behaviournot Sourcegraph
  • Validating a concept for a client who needs to feel the product, not watch a video of itnot Sourcegraph

Sourcegraph

  • Large-scale code migrations across hundreds of repositoriesnot Proto.io
  • Enterprise governance and code ownership trackingnot Proto.io
  • AI-assisted bug hunting and security pattern detectionnot Proto.io
  • Onboarding engineers into large unfamiliar codebasesnot Proto.io
  • Regulatory compliance and code audit trailsnot Proto.io

Where each one falls short

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

Proto.io

  • Prototypes live in the vendor cloud and offline export is a higher-tier feature, so the ability to archive completed client work is a plan-level decision rather than a given
  • Design is done elsewhere and interaction is rebuilt here, so every change to the visual design has to be reapplied by hand and the two artefacts drift apart
  • The event and condition model is layer based, so a genuinely complex flow becomes a large tree of triggers that nobody but its author can audit
  • Editor seats are priced individually and viewer access is limited on lower plans, so opening review to a wide stakeholder group pushes you up a tier for people who never edit anything
  • The market standardised on Figma, so hiring people who already know Proto.io is progressively harder and every new researcher is a training cost

Sourcegraph

  • Enterprise pricing starting at $16k annually creates significant barrier for small teams
  • No free tier or standard plan published; all options require custom sales engagement
  • Complex enterprise-only positioning limits adoption compared to GitHub Copilot's pervasiveness
  • Requires indexing entire codebase; not suitable for small or ephemeral projects

Pricing, plan by plan

Proto.io

On request
  • FreelancerOn request
    • Single editor
    • Limited active projects
    • Standard sharing
  • StartupOn request
    • Multiple editors
    • More projects
    • Team library
  • AgencyOn request
    • Higher project and storage limits
    • Client sharing controls
  • CorporateOn request
    • Largest quotas
    • Offline export on higher tiers
    • Priority support

Sourcegraph

$16000/year
  • Enterprise$16,000/yr
    • Scales with team size
    • Credits for AI features per user
    • Deep Search

Which should you pick?

Choose Proto.io if

  • You need event and condition system.
  • You work on Web, iOS, Android.
  • You also want timeline animation.
Proto.io review

Choose Sourcegraph if

  • You work on Web, Self-hosted.
Sourcegraph review

Questions people ask

Is Proto.io or Sourcegraph better?
Neither clearly leads. Proto.io starts at On request and Sourcegraph at $16000/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Proto.io or Sourcegraph?
Proto.io starts at On request and Sourcegraph at $16000/year.
Does Proto.io or Sourcegraph run on more platforms?
Proto.io runs on Web, iOS, Android. Sourcegraph runs on Web, Self-hosted.
What is Proto.io best used for?
Proto.io is most often used for running usability tests where the prototype must respond to real input rather than replay a fixed click path, demonstrating a form-heavy or data-driven flow to stakeholders before any code exists, testing a mobile interaction on the physical device it is designed for, with correct gesture behaviour, validating a concept for a client who needs to feel the product, not watch a video of it. Of those, running usability tests where the prototype must respond to real input rather than replay a fixed click path and demonstrating a form-heavy or data-driven flow to stakeholders before any code exists are not what Sourcegraph is typically brought in for.
What can Proto.io do that Sourcegraph cannot?
Proto.io covers Event and condition system, Timeline animation, Device preview, Component library.

Answered from the vendors’ own pages

Proto.io: Can it replace Figma?

No. It has no design system or file-handoff role. It sits alongside Figma for the prototypes Figma cannot express.

Proto.io: What happens to prototypes if we stop paying?

They stop being accessible unless you have exported them, and offline export is restricted to higher plans, so plan archiving before you cancel.

Proto.io: Is it worth learning now that InVision has gone?

If your work is usability research on conditional flows, yes. If you need click-through demos of static screens, Figma already does that at no extra cost.

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