ISA Certified Arborist exam prep, one payment
Purchases are opening soon. When they do, you pay once and get 12 months of access on any device, with no subscription. The bank currently holds 591 reviewed questions.
Question Bank
$49 one-time
Every practice question with full explanations and sources.
- All practice questions across the 10 exam domains
- Written explanation and public source for every question
- Practice by domain with instant feedback
- Mistakes notebook that tracks what you missed
- One-time payment, access for 12 months
Complete Prep
$149 one-time
Everything in Question Bank, plus timed mock exams, flashcards, the AI tutor and our pass guarantee.
- Everything in Question Bank
- Timed 200-question mock exams weighted like the real exam
- Flashcards for key terms and concepts
- AI tutor: ask why an answer is right or wrong
- Study plan built from your weakest domains
- Money back within 14 days, even if you sit the exam and don't pass
- Don't pass later? We add 12 months of access free
- One-time payment, access for 12 months
Money back within 14 days for any reason, including not passing. Don't pass later? We extend your access by 12 months free. Terms
Purchases are not open yet. The prices above are what the plans will cost: one-time, no subscription. Until then, the free practice questions are open to everyone.
Compare plans
| Feature | Free | Question Bank $49 | Complete Prep $149 |
|---|---|---|---|
| Free practice questions (10 per domain) | ✓ | ✓ | ✓ |
| Exam guide and study tips | ✓ | ✓ | ✓ |
| Timed 25-question quick test | ✓ | ✓ | ✓ |
| Full question bank, all 10 domains | — | ✓ | ✓ |
| Explanation and source for every question | Free set only | ✓ | ✓ |
| Mistakes notebook | — | ✓ | ✓ |
| Timed 200-question mock exams | — | — | ✓ |
| Flashcards | — | — | ✓ |
| AI tutor | — | — | 25 questions/day |
| Study plan from your weakest domains | — | — | ✓ |
| Pass guarantee | — | — | ✓ |
14-day money-back guarantee
Ask within 14 days of purchase for a full refund, for any reason, including if you sit the exam and don't pass.
Pass guarantee
With Complete Prep, if you take the exam after the 14-day window and don't pass, we add 12 months of access free for your retake. See terms.
Secure checkout
Payments are not open yet. When they open, you will pay by card, Apple Pay or Google Pay through Waffo.com Limited, our merchant of record. We will never see or store your card number.
Billing questions
Do you have a money-back or pass guarantee?
Yes, two parts. First, every plan has a 14-day money-back guarantee: email us within 14 days of purchase for a full refund for any reason, including if you sit the exam in that time and don't pass. Second, with Complete Prep, if you take the exam later and don't pass, email us your official ISA result notice within 30 days of receiving it and we extend your access by 12 months at no cost. Full terms.
Can I get a refund if I change my mind?
Yes. Email us within 14 days of purchase and we refund you in full, no questions asked, whether you changed your mind or sat the exam and didn't pass; your access is then switched off. See the refund policy.
Is this a subscription?
No. Both plans are a single payment ($49 or $149) with 12 months of access. Nothing renews automatically.
Can I upgrade from Question Bank to Complete Prep later?
Yes. Open the study app with your access link and choose any Complete Prep feature; you pay only the difference ($100).
How do I access the course after I pay?
Right after payment you get a private access link. Open it on any phone or computer; there is no password to remember. Save the link, and email us from your purchase email address if you ever lose it.
What can I practice for free?
100 questions (10 per domain) with full explanations and sources, a timed 25-question quick test, and the exam and study guides. Paid plans unlock the full question bank, timed mock exams and the study tools.
How does the AI tutor work?
On any question you can ask why an answer is right or wrong and get a short explanation. The tutor is given our reviewed explanation and sources for that question, so it explains rather than guesses, and it tells you when something is outside what it can verify. It is included in Complete Prep, with a fair-use limit of 25 questions a day.
More questions? Read the full FAQ or contact us.
Exam fees are paid separately to ISA: see the ISA Program Guide for current amounts.