Cybersecurity · head to head
Sardine vs Yarn
Sardine
Cybersecurity
Device intelligence and behaviour biometrics for fraud and compliance
- From
- On request
- Free plan
- No
Yarn
Developer Tools
Fast, reliable, and secure dependency management
- From
- Free
- Free plan
- Yes
The short version
- Only Yarn has a free tier, so it costs nothing to try first.
- Each has a real cost: Sardine signal quality depends on the SDK being embedded in your own web and mobile clients, so fraud improvements become dependent on your app release cycle and any coverage gap is a blind spot.; Yarn yarn 2+ (Berry) has limited ESM support which can be a constraint for some projects
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Sardine and Yarn 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 Sardine
- Device intelligence
- Behaviour biometrics
- Scam detection
- Onboarding risk scoring
- AML transaction monitoring
- Dispute and chargeback handling
- Rules editor
Only in Yarn
Nothing recorded that Sardine does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Sardine
- A neobank losing money to authorised push payment scams where the customer genuinely approved the transfernot Yarn
- A crypto exchange trying to detect accounts being operated by remote access rather than by their ownernot Yarn
- A fintech seeing synthetic identity signups that pass document verification but share device characteristicsnot Yarn
- A lender wanting first party fraud signals at application time that a credit bureau file does not containnot Yarn
Yarn
- Monorepo teams managing dependencies across 50+ interdependent packagesnot Sardine
- Enterprise JavaScript projects ensuring reproducible builds across CI/CDnot Sardine
- Open-source projects with plugin ecosystems coordinating versionsnot Sardine
- Teams requiring consistent package installs regardless of network conditionsnot Sardine
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Sardine
- Signal quality depends on the SDK being embedded in your own web and mobile clients, so fraud improvements become dependent on your app release cycle and any coverage gap is a blind spot.
- Behavioural and device telemetry collection needs a documented lawful basis under GDPR, and EU privacy reviews frequently delay rollouts that were scoped as engineering work.
- Pricing is per session or per active user, so a consumer product with many low value sessions pays in proportion to traffic rather than to fraud exposure.
- As a younger private company it lacks the enforcement-tested audit history that a bank examiner expects, which makes it a harder sell inside a regulated bank than inside a fintech.
- It is strongest on session-time signals and weaker as a system of record for long horizon AML typologies, so larger institutions end up running it alongside a traditional monitoring platform rather than instead of one.
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
Pricing, plan by plan
Sardine
On request- Sardine$undefined/year
- Priced per user session or per monthly active user
- Annual contract with volume commitment
- SDK for web, iOS and Android
Yarn
FreeNo published plan breakdown. See the Yarn review.
Which should you pick?
Choose Sardine if
- You need device intelligence.
- You work on Web, iOS, Android.
- You also want behaviour biometrics.
Questions people ask
- Is Sardine or Yarn better?
- Neither clearly leads. Sardine starts at On request and Yarn at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Sardine or Yarn?
- Yarn has a free tier; the other does not. Paid plans start at On request for Sardine and Free for Yarn.
- Does Sardine or Yarn run on more platforms?
- Sardine runs on Web, iOS, Android. Yarn runs on Web, Linux, macOS, Windows.
- Can I use Yarn for free?
- Yes. Yarn has a free tier, so you can try it without paying. Sardine starts at On request.
- What is Sardine best used for?
- Sardine is most often used for a neobank losing money to authorised push payment scams where the customer genuinely approved the transfer, a crypto exchange trying to detect accounts being operated by remote access rather than by their owner, a fintech seeing synthetic identity signups that pass document verification but share device characteristics, a lender wanting first party fraud signals at application time that a credit bureau file does not contain. Of those, a neobank losing money to authorised push payment scams where the customer genuinely approved the transfer and a crypto exchange trying to detect accounts being operated by remote access rather than by their owner are not what Yarn is typically brought in for.
- What can Sardine do that Yarn cannot?
- Sardine covers Device intelligence, Behaviour biometrics, Scam detection, Onboarding risk scoring.
Answered from the vendors’ own pages
Sardine: Does Sardine do document verification?
It focuses on device, behavioural and transaction signals, and integrates identity verification providers rather than being one. Treat it as complementary to a KYC vendor.
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.
SourceSardine: What does it need from us to work?
An SDK in your web and mobile applications plus transaction feeds. Without the client side collector you lose the signals that differentiate it.
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.
SourceSardine: Is pricing published?
No. It is quoted, typically per session or per monthly active user with an annual volume commitment.
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