Comparison
Certifier vs POK: full comparison 2026
POK - Proof of Knowledge offers a 100% free and unlimited plan to issue verifiable digital credentials with no annual credential cap, no setup fee, and no lock-in. Certifier's free plan is limited to 250 credentials per year — and reaching 1,000 credentials requires a paid plan starting at USD 45/month. A custom domain is only available on the Advanced plan at USD 399/month. For universities, governments, and enterprises issuing credentials at scale with full white-label control and no barriers to entry, POK is a significantly more accessible alternative.Get started freeIn summary
POK offers a truly unlimited free plan with no annual credential cap, NFT credentials on public blockchain, SOC 2 and 1EdTech data privacy certifications, full white-label customization — including custom domain on the NFT Ownership plan — and ELM/Europass compatibility. Certifier limits its free tier to 250 credentials per year, reaching 1,000 requires a paid plan from USD 45/month, and custom domain is restricted to the USD 399/month Advanced plan. Certifier has Open Badges 3.0 certification but has not completed the 1EdTech data privacy program, does not publish SOC 2, and does not offer blockchain NFT credentials or ELM/Europass.
Comparison
Feature comparison
Features | POK | certifier |
|---|---|---|
| Truly unlimited free plan (no annual credential cap) | Yes | No |
| NFT Certificates on Blockchain | Yes | No |
| ELM (European Learning Model / Europass) | Yes | No |
| 1EdTech Data Privacy Certification (TrustEd Apps) | Yes | No |
| SOC 2 Certification | Yes | No |
| Employability Tracking | Yes | No |
| White Label Export to Google Wallet and Apple Wallet | Yes | No |
| Learning Paths with Advanced Analytics | Yes | No |
| Customizable Banners for AdTech | Yes | No |
| White-label custom domain without enterprise-tier pricing | Yes | No |
| User Roles | Yes | Partial |
| Open Badges 3.0 certified by 1EdTech | Yes | Yes |
| Self-serve published pricing | Yes | Yes |
Global Recognition and Exponential Growth
Certifier is a growing platform founded in Europe, primarily targeting SMBs and mid-market companies seeking an intuitive design-first certificate builder. POK has been recognized as Top 100 EdTech in Latin America by HolonIQ 2024 and 2025, is certified by 1EdTech, and has surpassed 1,100 institutions in 19 countries — universities, governments, and enterprises in Latin America, North America, Central America, Europe, and Asia — issuing over 1.5 million credentials. POK ranks among the highest-rated platforms on G2, Capterra, and SourceForge globally.
Security and Cutting-Edge Technology
POK holds ISO 27001 and SOC 2 certifications — independently audited standards covering data protection, access management, and incident response. POK is also certified by 1EdTech under the TrustEd Apps data privacy program and complies with GDPR.
Certifier holds ISO 27001, ISO 9001, and an active 1EdTech Open Badges 3.0 Issuer certification — strong technical foundations. However, Certifier has not yet undergone vetting under the 1EdTech TrustEd Apps data privacy program, and does not publish SOC 2 certification. For universities and enterprises that require SOC 2 compliance for procurement processes, or the 1EdTech data privacy certification for institutional trust frameworks, POK is the certified alternative.
Certifier holds ISO 27001, ISO 9001, and an active 1EdTech Open Badges 3.0 Issuer certification — strong technical foundations. However, Certifier has not yet undergone vetting under the 1EdTech TrustEd Apps data privacy program, and does not publish SOC 2 certification. For universities and enterprises that require SOC 2 compliance for procurement processes, or the 1EdTech data privacy certification for institutional trust frameworks, POK is the certified alternative.
Customization and User Experience
POK offers comprehensive white-label customization for the entire credential issuance and reception experience: custom domain and branded SMTP email on the NFT Ownership plan, fully customizable display pages with banners, brand colors, logo, and multimedia content, white-label export to Google Wallet and Apple Wallet, and a recipient wallet compatible with Open Badges 3.0 and ELM/Europass.
Certifier includes custom domain only on its Advanced plan (USD 339/month billed annually). On the Professional plan (USD 67/month), custom domain is an optional add-on at USD 99/month — bringing the effective cost to approximately USD 166/month just for the domain. Certifier does not offer white-label export to Google Wallet or Apple Wallet, and the recipient experience relies on Certifier's branded portal rather than a fully customizable institution-branded wallet.
Certifier includes custom domain only on its Advanced plan (USD 339/month billed annually). On the Professional plan (USD 67/month), custom domain is an optional add-on at USD 99/month — bringing the effective cost to approximately USD 166/month just for the domain. Certifier does not offer white-label export to Google Wallet or Apple Wallet, and the recipient experience relies on Certifier's branded portal rather than a fully customizable institution-branded wallet.
Pricing Model and Accessibility
Certifier publishes its pricing transparently. Its free plan is limited to 250 credentials per year — a constraint that makes it impractical for most institutions issuing continuously. Reaching 1,000 credentials per year requires a paid plan starting at USD 45/month. The Professional plan at USD 79/month (or USD 67/month billed annually) covers 2,000 credentials per year; custom domain is not included and costs an additional USD 99/month as an add-on. The Advanced plan at USD 399/month (USD 339/month annually) raises the cap to 5,000 credentials per year and includes custom domain as part of the base offering.
POK publishes its pricing transparently: a 100% free and unlimited plan for Web2 credentials with no user limits, no annual credential cap, and no expiration. Blockchain NFT credentials are available as pay-per-credential packages with no subscription commitment, no lock-in, and no additional gas fees. Institutions know the real cost from day one.
POK publishes its pricing transparently: a 100% free and unlimited plan for Web2 credentials with no user limits, no annual credential cap, and no expiration. Blockchain NFT credentials are available as pay-per-credential packages with no subscription commitment, no lock-in, and no additional gas fees. Institutions know the real cost from day one.
Credential Permanence and Ownership
POK issues credentials as NFTs on public blockchain (Polygon and LacNet), with decentralized cryptographic validation of the issuer's identity. Credentials remain permanently verifiable through any blockchain explorer — without intermediaries and without depending on any platform continuing to operate. The credential belongs to the holder forever.
Certifier does not offer blockchain NFT issuance. Its credentials are verifiable through Certifier's centralized platform, which means their long-term validity depends on the platform's operational continuity. For institutions concerned about the permanent provenance and independent verifiability of their credentials, this is a structural distinction.
Certifier does not offer blockchain NFT issuance. Its credentials are verifiable through Certifier's centralized platform, which means their long-term validity depends on the platform's operational continuity. For institutions concerned about the permanent provenance and independent verifiability of their credentials, this is a structural distinction.
Conclusion: Why Choose POK?
POK combines a 100% free and unlimited plan — with no annual credential cap — NFT credentials on blockchain, ISO 27001, SOC 2 and 1EdTech certifications, full white-label customization including custom domain on the NFT Ownership plan, and ELM/Europass compatibility. Certifier is a solid option for SMBs and teams that prioritize visual design and ease of use over compliance, blockchain infrastructure, and institutional-grade security certifications. For universities, governments, and enterprises seeking a scalable platform with no barriers to entry, POK represents a globally competitive alternative.
Join over 1,100 institutions in 19 countries already issuing verifiable digital credentials and microcredentials with POK.
Join over 1,100 institutions in 19 countries already issuing verifiable digital credentials and microcredentials with POK.
For more information on how POK can transform your institution's digital credential issuance and management, contact us for a personalized demo.
Frequently asked questions
The main differences are:
(1) Free plan — POK offers a truly unlimited free plan with no annual credential cap; Certifier's free plan is limited to 250 credentials per year, and reaching 1,000 requires a paid plan from USD 45/month.
(2) Blockchain — POK issues credentials as NFTs on public blockchain (Polygon and LacNet) with decentralized cryptographic validation; Certifier does not offer blockchain NFT issuance.
(3) Security — POK holds ISO 27001, SOC 2, and the 1EdTech data privacy certification (TrustEd Apps); Certifier holds ISO 27001 and Open Badges 3.0 from 1EdTech, but has not completed the TrustEd Apps data privacy program and does not publish SOC 2.
(4) Standards — POK is compatible with ELM/Europass; Certifier does not publish ELM/Europass compatibility.
(5) Custom domain — POK includes custom domain on the NFT Ownership plan; Certifier requires its Advanced plan at USD 399/month for custom domain access.
(1) Free plan — POK offers a truly unlimited free plan with no annual credential cap; Certifier's free plan is limited to 250 credentials per year, and reaching 1,000 requires a paid plan from USD 45/month.
(2) Blockchain — POK issues credentials as NFTs on public blockchain (Polygon and LacNet) with decentralized cryptographic validation; Certifier does not offer blockchain NFT issuance.
(3) Security — POK holds ISO 27001, SOC 2, and the 1EdTech data privacy certification (TrustEd Apps); Certifier holds ISO 27001 and Open Badges 3.0 from 1EdTech, but has not completed the TrustEd Apps data privacy program and does not publish SOC 2.
(4) Standards — POK is compatible with ELM/Europass; Certifier does not publish ELM/Europass compatibility.
(5) Custom domain — POK includes custom domain on the NFT Ownership plan; Certifier requires its Advanced plan at USD 399/month for custom domain access.
POK combines a truly unlimited free plan with no credential cap, NFT credentials on public blockchain, ISO 27001, SOC 2 and 1EdTech certifications, ELM/Europass compatibility, and full white-label customization including custom domain on the NFT Ownership plan. More than 1,100 institutions across 19 countries — universities, companies, and governments — already issue verifiable digital credentials at scale with POK.
Certifier's free plan limits issuance to 250 credentials per year, and reaching 1,000 requires a paid plan starting at USD 45/month. POK's free plan includes unlimited Web2 credential issuance with no annual cap, no user limits, and no expiration. For universities and training centers issuing credentials continuously throughout the year, POK's free plan scales without barriers.
No. Certifier does not offer blockchain NFT issuance. Its credentials are verifiable through Certifier's centralized platform. POK issues credentials as NFTs on public blockchain (Polygon and LacNet), with decentralized cryptographic validation of the issuer's identity — permanently verifiable through any blockchain explorer, without intermediaries, even if the platform changes ownership or stops operating. The credential belongs to the holder forever.
Certifier's Starter plan is free with a cap of 250 credentials per year. To issue 1,000 credentials per year, a paid plan starting at USD 45/month is required. POK's free plan has no annual credential cap, no user limits, and no expiration.
To issue 1,000 credentials per year with Certifier, a paid plan starting at USD 45/month is required. The Professional plan at USD 79/month (USD 67/month billed annually) covers up to 2,000 credentials per year. Issuing the same 1,000 credentials with POK costs USD 0 on the free plan.
Certifier's public features documentation does not list Google Wallet or Apple Wallet export. POK includes white-label export to Google Wallet and Apple Wallet on every plan, including the free one, allowing recipients to store credentials in their native mobile wallet with the institution's branding.
On Certifier, custom domain is included only in the Advanced plan at USD 339/month (billed annually). On the Professional plan it is available as an add-on at USD 99/month, bringing the effective monthly cost to approximately USD 166/month just for institutional branding. POK includes custom domain in the NFT Ownership plan at no extra cost.
Certifier publishes ISO 27001 and ISO 9001 certifications. SOC 2 is not listed in its public trust documentation. For institutions and enterprise procurement processes that require SOC 2 compliance, POK is the certified alternative — POK holds both ISO 27001 and SOC 2.
Certifier does not publish ELM (European Learning Model) or Europass compatibility. For institutions issuing credentials to European students or partnering with European universities and employers, POK is compatible with ELM/Europass and is 1EdTech certified for Open Badges 3.0.
POK is architected specifically to ensure credential permanence independent of platform survival:
With POK, the credential belongs to the holder permanently — not to the platform.
- NFT credentials are registered on public blockchains (Polygon and LacNet) — they remain verifiable through any blockchain explorer even if POK ceases to operate
- Credentials are built on open standards (Open Badges 3.0, W3C Verifiable Credentials) — ensuring portability and verifiability across any compatible system
- In the unlikely event of blockchain deprecation, POK can migrate credentials to another network while maintaining full traceability and metadata
With POK, the credential belongs to the holder permanently — not to the platform.
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