Comparison Guide · 2026
Best ASVAB Online Prep 2026: Honest Comparison
ASVAB Hero Pro · Mometrix Academy · Kaplan · Princeton Review · Peterson's · UnionTestPrep (free)
Transparency: ASVAB Hero Pro is on this list. We built it. We ranked it where the math puts it — using the same criteria applied to every other product. Our methodology is in the next section. Judge for yourself.
TL;DR — Quick Picks
Best for self-study
ASVAB Hero Pro
Lowest price, unlimited practice, per-topic tracking. Starts with a free diagnostic.
Best for video learners
Mometrix Academy
Video-heavy, strong reputation, good explanations. Costs more.
Best free option
UnionTestPrep
Completely free, large question bank. No progress tracking.
How We Picked
We evaluated each service on six criteria. Every service got scored the same way — including ours.
Price: Monthly and annual cost. Cheaper wins, all else equal.
Practice question count: More questions = more drilling variety = better prep.
Score tracking: Does the platform show you where you're improving and where you're not?
Answer explanations: Can you learn from wrong answers, or just see a correct answer?
Mobile experience: Can you study on a phone without frustration?
Refund policy: Is there a meaningful money-back window?
ASVAB Hero Pro
$9.99/mo · $49.99/yr (save 58%)
ASVAB Hero Pro is the platform we built, and it ranks first on price for most self-study users. At $9.99/month — or $49.99/year, which works out to $4.17/month — it's the cheapest option that includes real score tracking and unlimited practice.
What's included
769 practice questions across all ASVAB subtests
39 topic categories, each drillable independently
All 5 difficulty levels (Beginner → Expert)
AFQT estimator — see your projected percentile
Weak-topic recommendations based on your answers
Score history so you can track improvement over time
Free 30-question diagnostic to find your starting point
Coming soon
Flashcards are on the roadmap but not yet live. If spaced-repetition flashcard drilling is critical to your study plan, factor that in.
Who it's for
Anyone doing self-directed prep who wants unlimited practice and wants to know exactly which topics to focus on. The price point means you can subscribe for one or two months, drill hard, and cancel — total cost under $20.
What could be better
ASVAB Hero Pro is a newer product. There are no instructor-led video lessons — this is question-and-explanation drill work, not a course with a teacher walking you through concepts. Flashcards are coming but aren't here yet. Mometrix has more feature polish from years in the market. If you're the type of learner who needs video instruction to understand a concept before drilling it, read the Mometrix section next.
Mometrix Academy
~$39.99/mo (current price varies — check mometrix.com — no affiliate link)
Mometrix is the name most people recognize in test prep. They've been in the market for years, and their ASVAB offering reflects that maturity — polished video lessons, solid practice questions, and explanations that go beyond "the answer is C."
Pros
Video-heavy instruction — if you need someone to explain a concept before drilling, this is where Mometrix wins
Strong brand reputation with a long track record in standardized test prep
Platform covers many other tests (GED, SAT, nursing exams), so there's no ASVAB-only focus diluting the team's attention to their core market
Practice questions include detailed explanations, not just answer keys
Cons
About 4× the price of ASVAB Hero Pro at ~$39.99/month
Monthly auto-renew — easy to forget and get charged for a month you don't use
Per-topic score tracking is less granular than what Pro offers
No AFQT estimator based on your actual practice performance
Who it's for
Learners who need video instruction to understand concepts before drilling. If you watch a lesson and then do practice problems — rather than learning from practice problems directly — Mometrix is worth the price premium. Budget-conscious self-studiers will likely find more value elsewhere.
Kaplan ASVAB Online
~$49+ depending on package (current price varies — check kaptest.com — no affiliate link)
Kaplan is one of the largest test prep brands in the country. Their ASVAB materials are thorough and professionally produced. The platform carries decades of brand equity from SAT, LSAT, and medical board prep — which is both a strength and a limitation for ASVAB students.
Pros
High-quality, professionally produced study materials
Includes full-length practice tests with realistic timing
Strong content coverage across all 9 ASVAB subtests
Brand reputation carries some psychological comfort for test-anxious students
Cons
ASVAB is a relatively small market for Kaplan — the product exists but it's not their priority vertical
Higher price point with less ASVAB-specific tracking than dedicated platforms
Some users find the interface more suited to academic tests than military enlistment prep
Pricing is package-based and can be confusing — compare carefully before purchasing
Who it's for
Students already familiar with Kaplan from academic test prep who want a consistent platform experience. Not the top pick for dedicated ASVAB prep on its own merits.
Princeton Review (Online Tier)
Price varies by package — check princetonreview.com (no affiliate link)
Princeton Review's ASVAB materials are solid, particularly their written content. Their books have long been a staple of test prep retail shelves. The online platform extends that content into a digital format.
Pros
Well-written explanations for math-heavy subtests like AR and MK
Trusted brand with consistent content quality over many editions
Good for learners who prefer book-style reading with a digital supplement
Cons
Online-specific ASVAB tools are limited compared to dedicated platforms
No meaningful per-topic adaptive tracking in the online tier
Like Kaplan, ASVAB is a small segment of their overall business — platform investment reflects that
Pricing can be opaque — packages bundle other test materials you may not need
Who it's for
Students who are also prepping for academic tests (SAT/ACT) and want a single platform. For ASVAB-only prep, the dedicated platforms outperform on feature-per-dollar.
Peterson's Test Prep
Price varies — check petersons.com (no affiliate link)
Peterson's has a long history in military and civil service test prep — longer than most brands on this list. Their ASVAB coverage is comprehensive. The platform has evolved significantly in recent years as they've pushed into digital tools.
Pros
Deep heritage in military test prep — they know this space well
Large question bank with full coverage of all ASVAB subtests
Includes detailed score reporting and section analysis on practice tests
Cons
Interface feels dated compared to newer platforms — navigation can be clunky
Mobile experience is inconsistent; works better on desktop
Pricing has shifted frequently — confirm current subscription terms before purchasing
Who it's for
Learners who prioritize question volume and aren't bothered by an older interface. Good choice if desktop-based study fits your routine.
UnionTestPrep
Free · No account required · uniontestprep.com/asvab (no affiliate link)
UnionTestPrep is the best free ASVAB practice option available. The site covers all ASVAB subtests with a large question bank, no account required, no paywall, no trial period that expires. It's not flashy. It works.
Pros
Completely free — no credit card, no trial, no upsell
Large question volume covering all 9 subtests
Good supplemental source if you want additional questions beyond your primary platform
Cons
No score tracking or progress history — you can't see if you're improving week-over-week
No weak-topic recommendations
No AFQT estimator or composite score projections
Ad-supported interface
Who it's for
Budget-only students. Also useful as a supplemental question source alongside a paid platform that handles your progress tracking. If you can stretch to $9.99/month, the tracking features in Pro are worth it.
Pricing Comparison Table
All prices reflect best available information as of April 2026. Competitor prices change — verify at their sites before purchasing.
| Service | Monthly |
|---|---|
| ASVAB Hero Pro#1 | $9.99/mo ($49.99/yr) |
| Mometrix Academy | ~$39.99/mo |
| Kaplan ASVAB | ~$49+ (package) |
| Princeton Review | Varies |
| Peterson's | Varies |
| UnionTestPrep | Free |
Some columns hidden on mobile. Competitor prices sourced from public listings — verify before purchasing.
Who Should Use What
If You want the cheapest path to unlimited practice:
ASVAB Hero Pro at $9.99/mo. Start with the free diagnostic to see where you stand.
Start free diagnostic →If You learn best from video instruction:
Mometrix Academy. The price premium is real, but video-based instruction is genuinely valuable if that's your learning style.
If You are on a strict budget (zero dollars):
UnionTestPrep for practice volume, plus ASVAB Hero's free 30-question diagnostic to benchmark yourself.
Take free diagnostic →If You're already a Kaplan or Princeton Review student:
Stick with what you have for content, but supplement with ASVAB Hero Pro for per-topic tracking — the price is low enough that running both isn't unreasonable.
If You want to prep on a phone during commutes:
ASVAB Hero Pro is mobile-optimized. Mometrix is workable on mobile. Peterson's is better on desktop.
Try Pro on your phone →FAQ
Is paid ASVAB prep necessary?
No — free resources exist (UnionTestPrep, Khan Academy for math) and many recruits pass without paying. Paid prep earns its cost when you need structured progress tracking, weak-topic identification, or unlimited practice volume without hunting across a dozen sites.
Can I use multiple ASVAB prep services at once?
Yes, but it rarely helps. Most people get better results going deep on one platform than wide across several. The exception: use a free tool for additional question volume while a paid platform tracks your progress.
What is the cheapest ASVAB online prep option?
UnionTestPrep is completely free. Among paid options with score tracking, ASVAB Hero Pro at $9.99/month is the lowest-cost entry point. At $49.99/year, that drops to $4.17/month.
Are there free ASVAB prep alternatives?
Yes. UnionTestPrep covers all subtests for free. Khan Academy covers ASVAB math content (AR and MK). The official ASVAB website (official.asvabprogram.com) has sample questions. ASVAB Hero's 30-question diagnostic is also free, no account required.
Can I get a refund if I'm not happy with an ASVAB prep course?
Refund policies vary. ASVAB Hero Pro has a 7-day money-back guarantee, no questions asked. Mometrix Academy has a lifetime guarantee on their book products — check their online course terms specifically. Kaplan and Princeton Review offer conditional satisfaction guarantees. Read the fine print before purchasing any service.
Bottom Line
For most self-study students, ASVAB Hero Pro is the right call. It's the cheapest option with real score tracking, covers all 9 subtests across 39 topic categories, and costs less than a single meal out. Start with the free diagnostic to see your baseline — no account, no credit card. If the results show weak areas you want to systematically address, upgrade.
If you're a video learner who needs conceptual instruction before you drill, Mometrix is worth the higher price. If money is zero, use UnionTestPrep and our free diagnostic in combination.