📊 Scrum.org vs Scrum Alliance

PSPO I vs CSM®

Professional Scrum Product Owner I (Scrum.org) and Certified ScrumMaster (Scrum Alliance) (Scrum Alliance) cover different bodies of knowledge. Here's how they compare side by side — and how to pick the one that fits your role.

Side-by-side comparison

The fastest way to see which credential fits your experience and goals.

  PSPO IProfessional Scrum Product Owner I CSM®Certified ScrumMaster (Scrum Alliance)
LevelFoundationFoundation
Exam length1h 0m1h 0m
Questions (real exam)~80~50
Pass mark85%74%
In a sentenceProduct ownership and value delivery, by the book.The classic Scrum Master certification.
Free practice282 sample questions149 sample questions

Exam parameters are compiled from each vendor's official exam guide. Always confirm the current format, eligibility and fees on the official Scrum.org and Scrum Alliance site before booking. ExamDeck is an independent study tool and is not affiliated with Scrum.org or Scrum Alliance.

Cost, study time and renewal

Figures as published by each vendor, transcribed on the date shown. Where a vendor prices differently for members, both prices are listed.

  PSPO Ifacts as of August 2026 CSM®facts as of August 2026
Fees
Exam attempt: $200 (verify on scrum.org)
Course requirement: None — self-study allowed
Renewal: None — valid for life
CSM course (required): ~$250–1,500+ — set by trainer; incl. exam + 2 attempts
Extra retake: $25
Membership: 2 years included
Renewal (every 2 yrs): 20 SEUs + $100
Study timecommonly reported 20–40 hours (more if you're new to product ownership)the 14–16-hour course itself; attentive participants typically pass right after it
RenewalNone — PSPO I is valid for life, with no renewal fees or continuing-education requirementsEvery 2 years — 20 Scrum Education Units (SEUs) plus a $100 renewal fee
Entry requirementNo prerequisites — anyone can buy an attempt and take it online, anytime.Completion of a CSM course from a Scrum Alliance Certified Scrum Trainer is required — 16 hours in person or 14 hours live-online. No self-study path exists.
Body of knowledgethe Scrum Guide (2020)the Scrum Guide (2020) and Scrum Alliance CSM Learning Objectives
Full fact pages PSPO I cost · format · eligibility CSM® cost · format · eligibility

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PSPO I vs CSM® — questions, answered

What is the difference between PSPO I and CSM®?

PSPO I (Professional Scrum Product Owner I) is a Scrum.org foundation credential, while CSM® (Certified ScrumMaster (Scrum Alliance)) comes from Scrum Alliance (foundation). They cover different bodies of knowledge, so the choice depends on the role you're aiming for rather than difficulty alone.

Which is harder, PSPO I or CSM®?

The PSPO I exam runs about 1h 0m with ~80 questions; the CSM® exam runs about 1h 0m with ~50 questions. The more senior credential generally demands more applied, scenario-based judgement.

Can I practice both PSPO I and CSM® for free?

Yes. A free account gets 6 sample questions in study mode for each of PSPO I and CSM®, with an explanation for every option, plus a 10-question diagnostic for each. No credit card required.

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