Your Shopify app holds the keys to every merchant's store. One missed authorization check and you're explaining a cross-store data leak to your biggest customer. Here are five services that help you find those gaps before attackers do.
What are Creative & Digital Services services?
Shopify app security is its own discipline. Generic web app scanners miss the things that matter most: OAuth token handling, webhook HMAC verification, App Bridge session validation, and the boundary that keeps one merchant's data away from another's. The services below specialize in exactly those risks. Some are boutique shops built entirely around Shopify. Others are broader security firms with dedicated Shopify practices. The right fit depends on your stage, your budget, and whether you need a quick code scan or a full incident response.
What we looked at when researching Creative & Digital Services
We evaluated each provider on four factors. Service scope: do they cover code review, live testing, and retesting, or just one piece? Pricing clarity: are costs published or hidden behind a sales call? Shopify specialization: do they understand store isolation, webhooks, and App Bridge, or treat Shopify as just another web app? Evidence and reporting: do you get findings you can hand to a merchant or an auditor? Each provider below stood out in different ways on these factors.
| Provider | Best For |
|---|---|
| Farchase | Shopify-native teams that want a proven track record and merchant-ready evidence |
| Shopify App Security Testing & VAPT | AppPerimeter | Small Shopify app teams that want transparent fixed-scope pricing and manual verification |
| winfunc | Engineering-led teams that want code-level evidence and pull-request patches |
| EJN Labs | Teams that need compliance-grade reporting and CREST-certified testing |
| Atlant Security | SaaS platforms that want Shopify testing alongside broader security and compliance support |
A closer look at 5 standout Creative & Digital Services
#1 Farchase
A screenshot of the Farchase website.
Farchase brings serious Shopify pedigree to the table. The team has tested more than 32 Shopify apps and built its methodology around the attack surface that matters: merchant accounts, OAuth scopes, access tokens, and cross-tenant isolation. You get manual-first testing of APIs, business logic, and merchant-facing features, plus retesting and a testing certificate. If you need a report you can show to the Shopify App Store review team or a nervous enterprise merchant, this is a strong option. Their sample report and attack surface map show exactly how they think about your app's boundaries.
#2 Shopify App Security Testing & VAPT | AppPerimeter
A screenshot of the Shopify App Security Testing & VAPT | AppPerimeter website.
AppPerimeter is the specialist you call when you want fixed pricing and no surprises. Every service is scoped and priced upfront: a $150 code scan, a $900 security readiness assessment, a $3,500 incident VAPT, and an $800 retest with evidence. Manual verification comes first, supported by automated tools and AI-assisted analysis. They focus on the exact places Shopify apps break: store isolation, authentication and access, webhooks and app proxies, and exposed infrastructure or secrets. Written authorization comes before any testing starts, which matters if you're handling merchant data. For a small team that needs a clear next step without a procurement cycle, this is a practical fit.
#3 winfunc
A screenshot of the winfunc website.
winfunc takes a code-centric approach to Shopify app security. They trace shop identity through every handler and API call, reviewing OAuth flows, webhook HMAC verification, App Bridge session tokens, and Admin API scoping. The output is evidence tied directly to your source code, with findings that show the path from source to sink. They also open suggested patches as pull requests, which saves your engineers time on remediation. If your team lives in GitHub and wants fixes they can review like any other PR, winfunc is worth a look.
#4 EJN Labs
A screenshot of the EJN Labs website.
EJN Labs is a UK-based penetration testing firm with a dedicated Shopify app practice. They bring CREST-certified methodology and a broad compliance background, including PCI DSS, SOC 2, and ISO 27001. Pricing starts at £2,180, which puts them in the mid-market range for a full penetration test. If you need a formal report that satisfies a compliance auditor or an enterprise merchant's security questionnaire, their credentials carry weight. They're a good fit when Shopify security is one piece of a larger assurance program.
#5 Atlant Security
A screenshot of the Atlant Security website.
Atlant Security publishes detailed guidance on Shopify app pentesting scope, test cases, and reporting, which tells you they've thought carefully about the discipline. Their service catalog includes Shopify App VAPT alongside SaaS and multi-tenant testing, API penetration testing, and compliance readiness work. That breadth helps if your app is part of a larger SaaS platform with multiple attack surfaces. They also offer virtual CISO and incident response services, so you can keep the relationship going after the test. For teams that want a security partner rather than a one-off assessment, Atlant is a solid choice.
How to choose the right Creative & Digital Services
Start with your trigger. If you have a live incident, you need incident VAPT and evidence collection, not a readiness review. If you're preparing for a Shopify App Store review or an enterprise merchant's security questionnaire, look for a provider that produces merchant-ready reports. If your team is small and budget-sensitive, fixed-scope pricing removes the guesswork. And if your engineers want to fix issues fast, prioritize providers that deliver code-level findings and patches. Match the provider's specialty to your actual next step, not to the longest list of services.
Expert Conclusion
Shopify app security is not a generic checkbox. The boundary between one merchant's data and another's is where reputations get made or broken. Farchase leads with Shopify-native depth and a track record. AppPerimeter offers the clearest fixed-price path for small teams. winfunc gives your engineers code-level evidence and patches. EJN Labs brings compliance-grade rigor. Atlant Security rounds things out with broader SaaS and incident response coverage. Pick the one that matches your stage, and test before your merchants find the gaps for you.