What the numbers add up to
- Short windows end. The api510exam.com plans end after 48 hours, 7 days or 6 weeks. Its 6-week plan is $129.95. Long Seam's course is $199 with lifetime access, so a moved exam window costs you nothing more.
- CertCrafter is the lowest price for lifetime access. $49 buys its API 510 kit with lifetime access and a 30-day refund window. Its page lists 1,020 questions in six timed 170-question exams, 29 chapters of study notes, 60 worked examples, 60 calculation drills, 400 flashcards, drills by Body of Knowledge part, and a 30-day plan with a readiness tracker. That is more full exams than our 2. Long Seam's course is $199. In untimed course practice you can ask Patch, our AI study buddy, about any question you missed and see your weakest topics, up to 40 messages a day. You also get timed lookup sets in your own copy of API 510, and a $39 7-day pass if your exam is days away. Pick CertCrafter if you want the most practice exams for the least money. Pick Long Seam if you want help with your own misses or only need a week.
What you get for the $199 course
You get 8 modules of lessons through the five Body of Knowledge sections, 6 worked calculations (corrosion rate, remaining life, inspection interval and more), a study plan, the 401-question bank, 2 timed practice exams with a closed-book part, an optional 45-minute break and an open-book part, your score by domain and its change since your last timed exam, timed lookup sets in your own copy of API 510 (8 lookups per set, answered as section and paragraph numbers, with your median seconds), and an exam-day guide.
If your exam is days away, the 7-day pass is $39.
Try the free 10-question check first. It needs no signup and explains every answer.
A practice score is not a prediction
No practice score, ours or anyone's, predicts your result on exam day. Use your score by domain to pick the next section to study. Our questions are original and written to the published Body of Knowledge.
FAQ
Does anything renew on Long Seam?
No. The course and the 7-day pass are one payment each. The course comes with lifetime access, and the pass ends after 7 days.
Can I get my money back?
Refund eligibility depends on the plan, request time and paid use. See Terms and refunds.
Does Long Seam promise I will pass?
No. Nobody can promise you a pass.
Sources
- api510exam.com and terms: plans, 1,000+ questions, no auto-renewal, all sales final. Read 22 Oct 2026.
- CertCrafter and refund policy: $49, no end date listed, 1,020 questions, 30-day refund. Read 22 Oct 2026.
- CertCrafter API 510 kit: $49, lifetime access, six full exams, 29 chapters of study notes, 60 worked examples, 60 calculation drills, 400 flashcards, drills by Body of Knowledge part, a 30-day plan and readiness tracker. Read 26 Oct 2026.
- Atlas API 510 online training: $999, 6 months, 48-hour money-back guarantee, practice questions. Read 22 Oct 2026.
- API 510 exam fees: see our requirements and cost guide.
- Long Seam prices and terms: the API 510 offer page and terms.
- Also see: API 570 prep: price, renewal and refunds.