2026 · sourced from each provider's product page

Best Series 24 exam prep in 2026

We list ourselves first on purpose, then compare honestly. The most-recognized Series 24 providers stacked across price, question-bank depth, adaptive learning, and who each one actually fits. Every competitor claim is sourced from that provider's published Series 24 product page.

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[01]

The short answer

/// tl;dr

For Series 24 candidates in 2026, CertFuel is both the cheapest option in this comparison and the only one with a genuine adaptive engine: $250, one-time, for a full year of access. That covers a 22,000+ question adaptive bank, unlimited practice exams, textbook-style reading for every unit, bite-sized section videos, a scenario-based audio podcast episode for every course unit, 3,100+ FSRS-based flashcards, and the Aiden AI tutor.

The three legacy providers all cost more and are built around static, non-adaptive question banks. Kaplan's Basic tier starts at $259 (rising to $479 for Premium Live Online), STC's Standard tier starts at $335 (rising to $665 for Premier Plus with a live class), and Pass Perfect starts at $390 (rising to $598 for its full bundle with a live virtual review). None of the three publish an exact question count for their Series 24 banks. The Series 24 is a broad supervisory exam: 150 scored questions, a 70% passing score, and 225 minutes covering registration, general broker-dealer supervision, customer activity, trading, and investment banking. Because the exam requires firm sponsorship through Form U4, many candidates take it on their employer's dime, and if your firm reimburses a specific provider, that reimbursement usually beats paying out of pocket for anything else.

Start Series 24 Prep → adaptive practice · ~15s to first question
[02]

Price and feature comparison

/// 4 providers · 7 axes
Provider Price Qbank Size Adaptive Readiness AI Tutor Format
CertFuel $250 (12 mo) 22,000+ Yes Yes Aiden Adaptive app + video + podcast
Kaplan $259 to $479 (5 mo) Not published No No Not listed Self-study + Live Online
STC $335 to $665 (6 mo) Not published No No Not listed Study manual + on-demand lectures
Pass Perfect $390 to $598 (7 mo) Not published No No Not listed eBook + test bank + live review

Prices are standalone Series 24 tiers retrieved from each provider's product page in 2026. Kaplan and STC also sell individual study products and other exam bundles separately, which run higher when combined. The AI Tutor column reflects what each provider advertises on its Series 24 page; "Not listed" means none is named there, not that one definitely does not exist.

[03]

Provider reviews

/// 4 mini-reviews

CertFuel

$250 (12 mo)

Cheapest and only adaptive option in this comparison: textbook, videos, podcasts, adaptive quizzes, unlimited practice exams, flashcards, and the Aiden AI tutor

What it does well

  • $250 one-time, the lowest price of any provider in this comparison
  • Only adaptive engine here: resurfaces the topics you keep missing instead of serving a fixed, randomly ordered bank
  • 22,000+ Series 24 questions, the deepest bank in this comparison by a wide margin
  • Unlimited full-length timed practice exams with a per-topic score breakdown
  • Bite-sized section videos and a scenario-based audio podcast episode per course unit
  • 3,100+ FSRS-based spaced-repetition flashcards
  • Live Exam Readiness Gauge (unique in this comparison)
  • Aiden, a built-in AI tutor that reads the lesson you are on, answers your questions, works examples, and breaks down the ones you miss (meet Aiden)
  • Access-until-you-pass guarantee (your access stays open until you pass, at no extra cost)

Where it falls short

  • No live-instructor option
  • Newer brand, smaller name recognition than Kaplan or STC
  • No printed textbook (online only)

Best for: Self-funded candidates and anyone whose firm does not mandate a specific provider. The 22,000+ question bank drills the supervisory scope that dominates the Series 24 (registration, BD supervision, customer activity, trading, and investment banking), and it costs less than any legacy competitor's entry tier.

Kaplan

$259 to $479 (5 mo)

Brick-and-mortar legacy, biggest brand in securities prep, no adaptive engine

What it does well

  • Strongest brand recognition in the field
  • Basic Self-Study is $259, Essential Self-Study $299, Premium Instruction $449 (OnDemand) or $479 (Live Online)
  • Premium tier adds instructor-led OnDemand or scheduled Live Online instruction
  • Practice, mastery, midterm, and checkpoint exams built from the SecuritiesPro QBank
  • Common reimbursement partner for wirehouse and bank-channel firms

Where it falls short

  • Question count not published
  • No adaptive question selection; the bank is the same randomly generated pool across every tier
  • Five-month access window with paid extensions (around $49 per five months)
  • Basic tier drops the mastery exam, instructor access, and class notes that Premium includes

Best for: Candidates whose firm reimburses Kaplan specifically, or who want the biggest brand name and do not need adaptive selection.

STC (Securities Training Corporation)

$335 to $665 (6 mo)

Long-running industry favorite for firm-paid prep, pass guarantee on the top two tiers

What it does well

  • Series 24 tiers: Standard $335, Premier $515, Premier Plus $665
  • Premier and Premier Plus include the STC Pass Guarantee
  • Decades-long footprint in employer-sponsored programs
  • Progress exams and Green Light readiness exams on the Premier and Premier Plus tiers
  • Premier Plus adds a live virtual or in-person class plus weekly Q&A sessions
  • Big enterprise customer base (banks, broker-dealers, insurance firms)

Where it falls short

  • Question count not published (700+ flashcards are sold separately as an add-on)
  • No adaptive learning across any tier
  • Premier Plus costs more than double CertFuel's price with no adaptive engine
  • Standard tier drops on-demand lectures, flashcards, and the pass guarantee

Best for: Candidates whose firm has an existing STC contract or who want a pass guarantee backed by a long-running enterprise provider.

Pass Perfect

$390 to $598 (7 mo)

Older brand built around an eBook plus a live virtual review

What it does well

  • Three published tiers: eBook + Test Bank ($390), eBook + Live Virtual Review ($546), and the Complete Bundle with all three ($598)
  • Longest access window of the three legacy providers at 7 months (CertFuel's 12-month access is still longer)
  • Chapter video lectures and animated videos aligned to the eBook's content
  • Multi-level assessments, including quick quizzes at the topic level
  • Live virtual class option on the two higher tiers

Where it falls short

  • Question count not published
  • No adaptive engine; content delivery is fixed, not performance-based
  • Online interface feels dated next to CertFuel
  • Top tier costs more than double CertFuel's price

Best for: Candidates who want a structured eBook-plus-live-review format and do not need adaptive question selection.

[04]

Which Series 24 prep should you choose?

/// 4 candidate types
01

Self-funded and want the deepest prep

CertFuel ($250). It is the only adaptive engine in this comparison and costs less than any competitor's entry tier. The 22,000+ question bank, unlimited practice exams, section videos, per-unit podcasts, and 3,100+ flashcards are all included at that price, with an access-until-you-pass guarantee.

02

Firm is paying

Use whoever your firm reimburses. The Series 24 requires firm sponsorship through Form U4, so nearly every candidate is employed while studying, and Kaplan and STC in particular dominate employer-sponsored programs at banks and broker-dealers. When someone else is paying, take the reimbursement and use what they cover.

03

Lowest sticker price among legacy providers

Kaplan Basic ($259). It undercuts STC Standard ($335) and Pass Perfect's entry tier ($390), but it is still a static, non-adaptive bank with a five-month window and no instructor access. CertFuel is $9 cheaper still and adds a genuine adaptive engine.

04

Want a pass guarantee

STC Premier or Premier Plus ($515 to $665), both of which carry the STC Pass Guarantee. CertFuel's version of the same idea is an access-until-you-pass policy: your subscription stays open at no extra cost until you pass, which sidesteps the guarantee question by never cutting off your access in the first place.

[05]

Frequently asked

/// asked.most
Is there a free Series 24 exam prep?

There is no fully free Series 24 system, but CertFuel hosts a full-length Series 24 practice exam and a guide to what the Series 24 actually tests, and Kaplan, STC, and Pass Perfect all publish small free samplers or a demo lesson. Among full prep systems, CertFuel is the only one with a genuine adaptive engine, at $250 one-time for a full year.

What's the cheapest Series 24 exam prep?

Kaplan has the lowest entry price of the three legacy providers: its Basic Self-Study package is $259. STC Standard is next at $335, and Pass Perfect starts at $390 for its eBook-and-test-bank tier. All three are static, non-adaptive question banks, and none publish an exact question count. CertFuel is $250, which makes it both the cheapest option in this comparison overall and the only adaptive one.

Which Series 24 prep has the most practice questions?

CertFuel publishes a 22,000+ question adaptive bank. Kaplan, STC, and Pass Perfect do not publish exact question counts on their Series 24 product pages; STC's page separately advertises 700+ flashcards as an add-on product, which is a study aid, not a question-bank size. The Series 24 spans five supervisory domains (registration, general BD supervision, customer activity, trading, and investment banking), so a deep, topic-weighted bank matters more here than it does on a narrow single-topic exam.

Is the cheapest Series 24 prep good enough to pass?

It can be, especially for candidates who already supervised informally before sitting for the exam. The Series 24 has 150 scored questions (160 total with pretest), a 70% passing score, and 225 minutes to finish, covering nearly every function of a broker-dealer. Kaplan's $259 Basic tier gets you the SecuritiesPro QBank, License Exam Manual, a practice exam, and a performance tracker, but no instructor access or mastery exam. CertFuel is priced below that ($250) and adds an adaptive engine, unlimited practice exams, and 3,100+ flashcards at the same price point.

Which Series 24 prep has adaptive learning?

CertFuel is the only provider in this comparison with a genuine adaptive engine that adjusts the questions you see based on your performance. Kaplan, STC, and Pass Perfect all build their Series 24 banks by topic or difficulty tier rather than adjusting to an individual candidate's weak spots. Separate from its adaptive engine, CertFuel also ships a lesson-aware AI tutor, Aiden, that explains any lesson and works examples on demand.

Do I need a paid Series 24 course?

No required course exists, and FINRA does not endorse any provider. Because the Series 24 requires firm sponsorship through Form U4, most candidates take it while employed, and many firms reimburse a specific provider (often Kaplan or STC, given their long-running enterprise contracts). If your firm covers one, use it. If you are covering the cost yourself, $250 (CertFuel) gets you an adaptive question bank plus the full content stack, for less than any competitor tier in this comparison.

How long does Series 24 prep take?

Most candidates prepare for the Series 24 in 4 to 8 weeks of consistent study, depending on how much hands-on supervisory or compliance experience they already have. The exam itself is 150 scored questions (160 total with pretest) in 225 minutes. For a closer look at what to expect on exam day, see our guide to the Series 24 pass rate.

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