Both certifications come from PMI (the Project Management Institute), both are respected worldwide, and both make you a stronger project professional. But they answer different questions. The PMP says "I can lead any kind of project, start to finish." The PMI-ACP says "I know agile deeply and can help teams work that way." Here is how to choose.
The short answer
- Choose the PMP if you lead projects (or want to), work with budgets, schedules and stakeholders, and want the certification most job adverts ask for. It covers predictive, agile and hybrid ways of working.
- Choose the PMI-ACP if you work in an agile team — as a Scrum Master, agile coach, product owner, team lead or developer — and want proof that you understand agile beyond one framework.
- Doing both? Many people take the PMP first, then the PMI-ACP. The PMP already contains a lot of agile, so the ACP becomes a deeper second step.
Side-by-side comparison
| PMP | PMI-ACP | |
|---|---|---|
| Focus | Leading projects of every type: predictive, agile and hybrid | Agile principles and practices: Scrum, Kanban, Lean, XP and more |
| Exam | 180 questions in 240 minutes | 120 questions in 180 minutes |
| Domains | People 33%, Process 41%, Business Environment 26% | Mindset 28%, Leadership 25%, Product 19%, Delivery 28% |
| Experience needed | 36 months leading projects with a four-year degree, or 60 months with a secondary diploma | 24 months of agile experience within the last 5 years |
| Training needed | 35 hours of project management education (or CAPM) | 21 hours of agile training |
| Best for | Project managers, programme leads, anyone moving into management | Scrum Masters, agile coaches, product owners, agile team members |
PMI updates its requirements and fees from time to time, so always confirm the current details on pmi.org before you apply.
Who should take the PMP?
The PMP is the most recognised project management certification in the world. If you look at job adverts for project manager roles in the USA, Canada, the UK or the Gulf, the PMP is the one you will see named again and again. It tells an employer you can handle the whole project: scope, schedule, cost, risk, quality, procurement, stakeholders and the team.
The modern PMP exam is not a "waterfall exam" any more. A large part of it is agile and hybrid, and many questions describe a team working in sprints. What it tests most of all is judgement: given a situation, what should the project manager do first?
Take the PMP if:
- You already lead projects or will soon.
- Your organisation runs a mix of predictive and agile work.
- You want the widest range of job options and the biggest salary effect.
Who should take the PMI-ACP?
The PMI-ACP is for people who live in agile every day. Unlike a single-framework certificate, it covers the whole agile toolbox: the Agile Manifesto and its principles, Scrum, Kanban and WIP limits, Lean waste, XP practices such as test-driven development and pair programming, servant leadership, value-based prioritisation and continuous improvement.
Take the PMI-ACP if:
- You are a Scrum Master, agile coach, product owner or agile team lead.
- Your company is moving to agile and you want to lead that change.
- You already hold the PMP and want to show deeper agile expertise.
Which exam is harder?
Most candidates find the PMP harder, mainly because it is longer (almost four hours) and covers more ground. The PMI-ACP is shorter but asks you to know many named agile concepts precisely — for example the difference between Lean's seven wastes, or which Crystal method fits which team size. Neither exam rewards memorising alone: both are full of scenario questions where several answers look reasonable and you must pick the best one.
How long does it take to prepare?
With a steady routine of about an hour a day, most working professionals are ready for the PMP in 6–10 weeks and for the PMI-ACP in 4–8 weeks. The single best predictor of passing is practice under real conditions: at least one full-length, timed mock exam before the real one.
Start free today
You don't have to decide before you begin. Try a few questions from each and see which one feels closer to your daily work:
- Free PMP practice questions and the free 180-question PMP mock exam
- Free PMI-ACP practice questions and the free 120-question PMI-ACP mock exam
Every question on this site explains why the right answer is right and why each wrong answer is wrong — which is how you learn to think the way the exam expects.