Pretty Scrum vs Scrum.org Open Assessment: Should You Use Both?

Direct answer: Yes—for most PSM I candidates, the best free stack is both. Use the official Scrum.org Open Assessment as a baseline checkpoint, and use Pretty Scrum for daily adaptive practice, explanations, weak-spot focus, and a full timed 80-question mock exam. They solve different problems.

Pretty Scrum is not affiliated with or endorsed by Scrum.org. Scrum is a registered trademark of Scrum.org. Always treat Scrum.org as the authority for the official assessment rules and the Open Assessments.

Side-by-side comparison

What the Scrum.org Open Assessment is for

The Open Assessment family from Scrum.org is the official free way to check basic Scrum knowledge and get familiar with how Scrum.org writes assessments. For PSM I prep, the Scrum Open assessment is a useful checkpoint, not a complete study system.

• Use it when you want an official signal: “Do I understand the Guide at a basic level?”
• Use it early after your first careful read of the Scrum Guide.
• Use it again late as a sanity check—but do not treat a high Open score as automatic readiness for the $200 PSM I attempt.

Many candidates still fail the real exam after scoring well on Open assessments because the real PSM I is longer, stricter on Guide precision, and easier to fail if you bring workplace Scrum habits into the answers.

What Pretty Scrum is for

Pretty Scrum is a free, mobile-friendly PSM I practice tool designed for efficient daily study:

• Study Mode: short sessions with instant explanations—no signup required to start.
• Adaptive practice: focuses study time on weak topics instead of repeating only what you already know.
• Exam Mode: timed mock exam format (80 questions, 60 minutes) for pacing and readiness.
• Scrum Guide integration: explanations and reader support tied to Guide topics.
• Optional sign-in: save progress and sync across devices when you want.

How selection works in more detail: Pretty Scrum methodology.

When to use which (decision guide)

Recommended sequence (free stack)

1. Read the 2020 Scrum Guide carefully (not skimming).
2. Take the Scrum.org Open Assessment for a baseline.
3. Practice daily in Pretty Scrum Study Mode on weak topics.
4. Review Guide chapters for every stubborn miss (start from the PSM I hub).
5. Run timed mock exams until you repeatedly clear a safe buffer above 85% (many candidates aim ~90%+ timed).
6. Optionally re-take Open as a final confidence check—then book only when mocks say you are ready.

Also see: best free PSM I practice tests and how to use Open + Pretty Scrum together.

Common mistakes

• Only using Open: great baseline, weak long-term practice loop.
• Ignoring Open entirely: you miss an official free checkpoint and question style from Scrum.org.
• Confusing Open score with PSM I readiness: the real exam needs 85% (68/80) under time pressure—see the passing score guide.
• Memorizing tool answers instead of the Guide: every wrong answer should send you back to Guide language.

Last reviewed: July 2026. Confirm Open Assessment details on Scrum.org, as their tools can change.

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