Agile Certifications Compared: PMI-ACP, CSM and the One We Can’t Price

The practical difference between agile certifications is not the syllabus. It is the door: PMI-ACP asks for agile experience or an existing certification before you may apply, while Scrum Alliance’s CSM is entered by attending a course. Everything else — cost, renewal, reputation — follows from that.

This compares what the issuing bodies publish, read on 24 September 2026, and is explicit about the one it could not read.

PMI-ACP: the door is experience

PMI-ACP needs a high school diploma or international equivalent and one of four experience routes: two years of agile experience in the past five years, a degree from a GAC-accredited programme plus one year of agile experience, a third-party agile certification plus one year, or an active PMP.

That fourth route is the one worth noticing. If you already hold the PMP, you are eligible for the PMI-ACP on that basis alone, which makes it a natural second credential rather than an alternative first one. It also means the two are not competitors for most people — they are a sequence.

On top of the experience, 21 hours of formal training in agile practices, frameworks and methodologies, from PMI’s own prep course, an Authorized Training Partner course, or third-party training courses. The exam is 120 questions in 180 minutes, and renewal is 30 professional development units per three-year cycle — half the PMP’s 60, twice the CAPM’s 15.

PMI does not publish the PMI-ACP exam fee, any more than it publishes the PMP’s or the CAPM’s. Fees are subject to membership status and regional pricing and appear once your application is accepted.

Certified ScrumMaster: the door is a course

Scrum Alliance structures the CSM the other way round. Its page describes the certification as taught by Certified Scrum Trainers, and the product you buy is the course; the test follows it.

Two published figures make this easy to plan around and one makes it hard. The test is 50 multiple-choice questions in one hour, and you must answer 37 of the 50 correctly to pass, with two attempts inside 90 days of completing the course — an unusually transparent pass mark in a field where PMI publishes none. The hard figure is the price: Scrum Alliance’s own page gives a range of “$250-$2,495 USD” for the course, varying with delivery method, location and market factors. That is a tenfold spread, and it means “what does a CSM cost” has no answer until you pick a trainer.

Renewal runs every two years on SEUs — Scrum Education Units — with the page describing the qualifying activities as reading books, watching webinars and attending events, but not stating the number required.

The one we could not verify

Scrum.org’s Professional Scrum Master assessments are a major part of this market. On 24 September 2026, scrum.org returned a bot-protection challenge rather than a page, so we read nothing.

We could have copied a fee and a pass mark from a training company’s blog. Several publish them confidently. But a figure with no primary source is exactly the kind of number this site exists to avoid — the same habit that left one Authorized Training Partner telling readers PMI’s experience window was eight years when it is ten. So there is no PSM fee, format or passing score anywhere on this site, and the row in the table above says “not verified” rather than guessing.

What renewal really asks of you

The renewal cycles are where these credentials stop being a purchase and start being a commitment, and they are structured differently enough to matter.

PMI runs one system across everything it issues. Professional development units are earned by learning, teaching others, presenting, reading, volunteering and creating content, with one PDU representing one hour, and they count towards every PMI certification you hold. Hold the PMP and the PMI-ACP together and you are managing one pool of hours against two cycles, not two separate chores.

Scrum Alliance runs its own currency, Scrum Education Units, on a two-year cycle rather than three. Its CSM page describes the qualifying activities — reading books, watching webinars, attending events — but does not state how many units are required, so the size of the commitment is not something you can read off that page before you commit to it.

The asymmetry is worth pricing into the decision. A two-year cycle comes round half as often again as a three-year one, and a requirement you cannot see the size of is harder to plan than a number, however large.

Which one, for which situation

Take the PMI-ACP if you hold the PMP already, or you have two years of agile work in the past five and your organisation reads PMI credentials. It is also the coherent choice if you want one body’s renewal system rather than two: PDUs count towards every PMI certification you hold.

Take the CSM if you need a recognised scrum credential quickly and without an experience bar, and you can find a trainer at the sane end of that price range. The course is the value; the certificate documents it.

Take neither yet if your work is not actually agile. Both credentials assume you will use the vocabulary, and both renew — 30 PDUs every three years, or SEUs every two. A credential you stop using becomes a subscription to something you no longer do.

How this fits with the PMP

The PMP is deliberately methodology-neutral. PMI describes it as proving project leadership across predictive, hybrid and agile ways of working, and its July 2026 exam content outline covers adaptive approaches directly. So “agile certification instead of the PMP” is a false choice for most people: the PMP is the general credential, and the PMI-ACP is the specialist one that the PMP itself admits you to.

If you are deciding between credentials more broadly, the best project management certifications, compared on entry requirements puts all four side by side. And if the PMP is where you are heading, what counts as PMP certification training is the page that decides what you should actually buy — including the live-class rule that changes on 1 December 2026.