Developer Tools · head to head
Yarn vs Yoti
Yarn
Developer Tools
Fast, reliable, and secure dependency management
- From
- Free
- Free plan
- Yes
Yoti
Cybersecurity
Reusable digital identity, facial age estimation and identity verification
- From
- On request
- Free plan
- No
The short version
- Only Yarn has a free tier, so it costs nothing to try first.
- Each has a real cost: Yarn yarn 2+ (Berry) has limited ESM support which can be a constraint for some projects; Yoti age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Yarn and Yoti actually diverge.
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 Yarn
Nothing recorded that Yoti does not also cover.
Only in Yoti
- Facial age estimation
- Reusable digital ID
- Identity verification
- UK right to work and rent
- Digital ID for retail
- Selective disclosure
What people use each for
The jobs each tool is most often brought in to do.
Yarn
- Monorepo teams managing dependencies across 50+ interdependent packagesnot Yoti
- Enterprise JavaScript projects ensuring reproducible builds across CI/CDnot Yoti
- Open-source projects with plugin ecosystems coordinating versionsnot Yoti
- Teams requiring consistent package installs regardless of network conditionsnot Yoti
Yoti
- A social platform meeting UK Online Safety Act age assurance duties without collecting identity documents from teenagersnot Yarn
- A supermarket removing staff interventions at self-checkout for age-restricted purchasesnot Yarn
- A UK employer running digital right-to-work checks under the certified trust framework rather than inspecting passportsnot Yarn
- A gambling operator needing an age gate with high completion rates before the account funding stepnot Yarn
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Yarn
- Yarn 2+ (Berry) has limited ESM support which can be a constraint for some projects
- Smaller ecosystem and community compared to npm, though still substantial
Yoti
- Age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- Estimation accuracy varies by demographic and reported error margins widen at the age bands that matter most for eighteen-year thresholds, which pushes borderline users into a document fallback you still have to pay for.
- Pricing is not published, so buyers cannot compare the cost of an estimation check against a document check without going through sales.
- Regulatory acceptance of facial estimation differs by jurisdiction, so a method that satisfies Ofcom may not satisfy a regulator elsewhere and multi-market platforms need more than one approach.
- The reusable digital identity app depends on consumer adoption, which is meaningful in the UK and thin elsewhere, limiting the reusability benefit outside its home market.
Pricing, plan by plan
Yarn
FreeNo published plan breakdown. See the Yarn review.
Yoti
On request- Yoti Age and Identity Services$undefined/year
- Per-check pricing quoted by volume and method
- Age estimation, document verification and digital ID priced differently
- Right to work and right to rent checks quoted separately
Which should you pick?
Choose Yoti if
- You need facial age estimation.
- You work on Web, iOS, Android, API.
- You also want reusable digital id.
Questions people ask
- Is Yarn or Yoti better?
- Neither clearly leads. Yarn starts at Free and Yoti at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Yarn or Yoti?
- Yarn has a free tier; the other does not. Paid plans start at Free for Yarn and On request for Yoti.
- Does Yarn or Yoti run on more platforms?
- Yarn runs on Web, Linux, macOS, Windows. Yoti runs on Web, iOS, Android, API.
- Can I use Yarn for free?
- Yes. Yarn has a free tier, so you can try it without paying. Yoti starts at On request.
- What is Yarn best used for?
- Yarn is most often used for monorepo teams managing dependencies across 50+ interdependent packages, enterprise javascript projects ensuring reproducible builds across ci/cd, open-source projects with plugin ecosystems coordinating versions, teams requiring consistent package installs regardless of network conditions. Of those, monorepo teams managing dependencies across 50+ interdependent packages and enterprise javascript projects ensuring reproducible builds across ci/cd are not what Yoti is typically brought in for.
- What can Yarn do that Yoti cannot?
- Yoti covers Facial age estimation, Reusable digital ID, Identity verification, UK right to work and rent.
Answered from the vendors’ own pages
Yarn: What is Yarn's main advantage over npm?
Yarn downloads packages in parallel, significantly reducing installation time. It uses a yarn.lock file for deterministic installs, ensuring identical package versions across machines and preventing version conflicts common with npm.
SourceYoti: Does age estimation store my face?
The image is used to produce an estimate and then deleted rather than retained, which is the specific property that makes it usable for age assurance on minors.
Yarn: Can I use Yarn in offline environments?
Yes, Yarn supports secure offline environments. The yarn.lock file enables reproducible installs without requiring new downloads.
SourceYoti: Is it accepted for UK Online Safety Act compliance?
Facial age estimation is one of the methods regulators have accepted as highly effective age assurance. Confirm the current position with your own counsel for your content category.
Yoti: Can it prove someone is exactly 21?
No. It gives a range. If you need a precise age you need a document or database check, which Yoti also sells.
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