AceFEExam vs PrepFE for FE Civil practice
Short answer
Both are practice-first FE prep sites rather than video courses. PrepFE covers five FE disciplines, has iOS apps and a pass guarantee on every plan, and costs $79.99, $99.99 or $119.99 for 1, 3 or 6 months. AceFEExam covers FE Civil only, gives one free full-length 110-question timed mock every 30 days, and costs $59 for 90 days or $99 for 12 months, one-time. Only AceFEExam publicly ships spaced repetition that re-asks your misses with new numbers.
Checked against the sources below on October 21, 2026.
This page is written by AceFEExam, so read it as one side’s account. PrepFE’s column quotes only what PrepFE publishes on its own pricing and home pages, linked under Sources; plans and features change, so check them before you buy.
Side by side
| PrepFE | AceFEExam | |
|---|---|---|
| FE disciplines | Civil, Electrical and Computer, Mechanical, Chemical, Other Disciplines | FE Civil only |
| Price | $79.99 (1 month), $99.99 (3 months), $119.99 (6 months), total, no auto-renewal | Free tier; Exam Sprint $59 (90 days) or Complete $99 (12 months), one-time, no subscription |
| Free access | No free plan listed on its pricing page | One full-length timed mock every 30 days and 30 practice questions a day (account required); an 8-question diagnostic with no account |
| Practice format | Interactive practice exams, timed and topic exams, 500+ practice problems, step-by-step explanations, flash cards | Full-length 110-question mocks in two sections with a one-way submit and the 25-minute scheduled break; topic drills; numbers re-roll between sittings |
| Mistake review / spaced repetition | Strengths and weaknesses by topic; re-do by subject. No spaced-repetition schedule on misses listed on its public pages | SM-2 spaced repetition on your misses; same template comes back with new numbers. Free accounts get a limited taste |
| Analytics | Breakdown of strengths and weaknesses | Score report by topic and a per-question pacing verdict; NCEES diagnostic report import on Complete |
| Devices | Browser and iOS apps | Browser only (no app) |
| Guarantee | Pass Guarantee on every plan length: fail the FE and re-enrol in the same length of subscription free | 30-day refund with no conditions; on Complete, fail the FE and get another 12 months free |
| Errata | Not stated on the pages checked | Public errata page: every confirmed defect, dated |
Try a free FE Civil practice question
Pick an answer to see the worked solution. No account required.
Question 1 of 1
An ellipse has semi-axes of 2 and 10. Its area is most nearly:
Show the answer and the reasoning
Why B
Given: semi-axes a = 2, b = 10. Relation: A = pi a b, which reduces to pi r^2 when a = b. Substitute: A = pi(2)(10). Result: A = 62.83.
Why A is tempting
Halved the area, which is the area of a half ellipse rather than the whole figure.
Why C is tempting
Treated the ellipse as a circle of the average radius.
Why D is tempting
Squared the product of the semi-axes.
Source NCEES FE Reference Handbook 10.6 — Mathematics; Engineering Probability and Statistics
Where PrepFE is the better choice
- You are not taking FE Civil. PrepFE covers five FE exams; AceFEExam covers one.
- You want to study on an iPhone or iPad app. PrepFE has iOS apps; AceFEExam runs in the browser only.
- You want a pass guarantee on a short plan. PrepFE’s repeat-free guarantee applies to every plan length; AceFEExam’s fail remedy is only on Complete.
- You want a longer track record. PrepFE has been running since at least 2020 (its FAQ covers the July 2020 exam changes); AceFEExam is new and publishes no pass-rate history of its own.
Where AceFEExam is the better choice
- You want to sit a full-length FE Civil mock before paying anything. The free tier includes one every 30 days.
- You want missed questions to come back on a schedule with new numbers. PrepFE’s public pages do not list spaced repetition on misses.
- You want the exam’s structure, not only its questions: two sections, the one-way submit between them, the 25-minute break and the 5 hour 20 minute clock.
- You need more than six months. Complete is $99 for 12 months; PrepFE’s longest plan is 6 months at $119.99.
- You are retaking. Complete imports your NCEES diagnostic report and builds a retake plan from it.
Spaced repetition on misses
When you miss a question on AceFEExam, it joins a review queue. The next time it is due, you see the same method with different numbers — not the same PDF item again. PrepFE publishes strengths/weaknesses and subject re-dos; its pricing and home pages do not describe a spaced-repetition schedule on misses.
Try before you decide
Sit the first 10 AceFEExam mock questions with no account, or take the 8-question diagnostic. Misses stay on this device until you sign in, then join spaced review.
Keep reading
Frequently asked questions
Is AceFEExam cheaper than PrepFE?
It depends on how long you need. AceFEExam has a free tier, $59 for 90 days and $99 for 12 months. PrepFE costs $79.99 for 1 month, $99.99 for 3 months and $119.99 for 6 months, per its pricing page.
Does AceFEExam cover FE Mechanical or FE Electrical?
No. AceFEExam covers FE Civil only. PrepFE covers FE Civil, Electrical and Computer, Mechanical, Chemical and Other Disciplines.
Do PrepFE and AceFEExam renew automatically?
Neither does. PrepFE says its prices are the total for 1, 3 or 6 months with no auto-renewals; AceFEExam’s paid plans are one-time purchases.
Which one has a pass guarantee?
Both, with different terms. PrepFE offers a free repeat of the same subscription length if you fail. AceFEExam offers a 30-day refund on any purchase, and on Complete another 12 months free if you sit the FE and fail.
Does PrepFE use spaced repetition?
PrepFE’s public pricing and home pages describe strengths and weaknesses and practice by topic. They do not list a spaced-repetition schedule that re-asks misses with new numbers. AceFEExam does.
Check where you stand, free
The quick diagnostic is eight FE Civil questions in about ten minutes, with no account. The free mock is a full 110-question, 5 hour 20 minute FE Civil paper with a worked solution for every question.