Pass the ISA exam.
First try.
All-in-one prep for working arborists: 2,000+ practice questions, realistic mock exams, and an AI tutor that explains what you missed.
The branch collar should not be cut because it:
Why A is correct
The branch collar contains specialized tissue that compartmentalizes decay through CODIT. Cutting through it removes the tree's natural boundary and opens the trunk to pathogens.
Related concepts
Answer one before you sign up.
See the learning loop immediately: answer, get feedback, understand the concept, then keep practicing.
Which pruning cut best preserves the tree's natural defense response?
Three tools. One outcome.
Practice, measure, and review stay connected, so the next study step is always obvious.
2,000+ questions.
All ten domains.
Drill by domain or run a 200-question timed mock. Every answer comes with an explanation. Miss it? It comes back tomorrow.
Simulate the
real exam.
Timed 200-question tests. Score by domain. Review every answer.
Stuck?
Just ask AI.
Plain-language explanations, comparisons, and on-the-spot quizzes.
Practice the way you study best.
Switch between random, sequential, unseen, and mistakes mode. Drill one domain at a time or use bookmarks to build your own review list.
Fit practice into real days.
5 Q
Warm-up sessions
Quick practice when you only have a few minutes.
10 Q
Standard drills
Focused work in one ISA domain.
25 Q
Deep practice
A longer block for weaker topics.
50+
Mock exam prep
Build timing before a half or full mock.
See exactly where you stand.
Pass/fail against the 76% threshold, color-coded scores for every domain, and a full review of every question — your answer, the correct one, and why.
Full mock exam
154 / 200 · 77%
Review every answer
Open any of the 200 questions to see what you picked, the correct answer, and a written explanation. Ask the AI tutor for a deeper take on the ones that tripped you up.
Drill what you missed
Wrong answers feed Mistakes mode so you can re-drill them on demand. Bookmark anything you flagged during the exam to come back to later.
Every domain. Mapped to weight.
We follow the published ISA exam blueprint and update on every revision.
11% of exam
Tree Biology
200 questions in bank
9% of exam
Identification and Selection
200 questions in bank
7% of exam
Soil Management
200 questions in bank
9% of exam
Installation and Establishment
200 questions in bank
14% of exam
Pruning
200 questions in bank
9% of exam
Diagnosis and Treatment
200 questions in bank
9% of exam
Trees and Construction
200 questions in bank
11% of exam
Tree Risk
200 questions in bank
15% of exam
Safe Work Practices
200 questions in bank
6% of exam
Urban Forestry
200 questions in bank
A better way to study.
Practice, review, target weak areas, then test under real exam timing.
Take a short diagnostic
Start with a focused quiz so you can see where you are strong and where you are guessing.
Review every miss
Use explanations, bookmarks, and the AI tutor to turn missed answers into concepts you understand.
Drill weak domains
Spend more time where your score moves: mistakes mode, bookmarked questions, and weaker domains.
Simulate exam timing
Use 50, 100, and 200-question mocks to build pace, stamina, and confidence before test day.
Simple. Honest.
One payment. Lifetime access. No subscriptions.
Full Access
One-timeEverything you need to pass. No recurring charges.
Questions before you start.
Is this the official ISA exam?
No. Arborist Practice is an independent study tool. The official source for eligibility, scheduling, fees, and policies is ISA.
Are these the real exam questions?
No. The questions are original practice items designed to match the domain coverage and reasoning style students need for exam prep.
Can I use it without the official study guide?
Use it as a practice and measurement tool. For certification exams, the official study materials should still be part of the plan.
What if I only have two weeks?
Take a mock exam, review missed questions, then spend most of your practice time in weaker domains and mistakes mode.
Is Spanish available?
Not yet. Contact us and we will prioritize adding Spanish support for you, including translated explanations where it helps.
Can I study on my phone?
Yes. The practice flow, mock exams, glossary, bookmarks, and AI tutor are built for mobile and desktop browsers.
Can I review only the questions I missed?
Yes. Use mistakes mode for questions you last answered incorrectly, and bookmarks for items you want to revisit later.
How many questions are included?
The question bank is built around all 10 ISA Certified Arborist exam domains, with thousands of practice items and explanations.