ARGONAUTUSMLE

Comparison · updated 11 October 2026

The best USMLE-Rx alternatives in 2026

Short answer: The best USMLE-Rx alternative for most students is Argonaut: $48 once for Step 1 and Step 2 CK with no expiry, where USMLE-Rx Qmax costs $299 for 12 months. Argonaut's questions are written to the NBME Item-Writing Guide and approved by a clinician, and ARGO adapts the questions themselves to your weak spots, not just your flashcards. UWorld, AMBOSS and Kaplan are the other main options.

By the Argonaut editorial team. How we write and review

Disclosure

Who wrote this, and how

The Argonaut editorial team wrote this page, and we sell Argonaut. To keep it fair, every fact about another bank is taken from that company's own website on 11 October 2026 and linked below, we say where other banks beat us, and there are no affiliate links. Prices change: check each site before you buy.

How our own questions are made is set out in our editorial policy. UWorld, AMBOSS, Kaplan and USMLE-Rx are trademarks of their owners; Argonaut is not affiliated with any of them.

Sources, checked 11 October 2026: USMLE-Rx pricing and FAQ; UWorld Step 1 page, pricing and FAQ; UWorld Step 2 CK page and pricing; AMBOSS Step 1 page and pricing; AMBOSS help center: adaptive question sessions; AMBOSS Step 2 CK page; Kaplan Step 1 Qbank; Kaplan Step 2 CK Qbank; Kaplan Step 1 Qbank free trial; USMLE sample test questions (usmle.org); NBME Item-Writing Guide (nbme.org); Official USMLE content outline.

Why switch

Why students look for a USMLE-Rx alternative

  • 01Renewals: $299 buys 12 months of Qmax; study for longer and you pay again.
  • 02Adaptivity sits in the flashcards: the Qbank itself is described without adaptive question selection.
  • 03A 5-day trial is short for judging a year's subscription.

From USMLE-Rx's website, checked 11 October 2026.

At a glance

USMLE-Rx and its alternatives

USMLE-Rx and four alternatives compared on price, access, questions and free trials, as of 11 October 2026
BankCoversPrice (as listed)AccessAdvertised questionsTry it free
USMLE-RxQmax (Step 1 and Step 2 CK)Step 1 and Step 2 CK$299 for 12 months1 to 36 months offered5,000+ across Step 1 and Step 2 CK5-day free trial of the Rx360+ bundle
ArgonautFull accessStep 1 and Step 2 CK$48 onceNo expiry (for as long as Argonaut runs)1,090 Step 1; 737 Step 2 CK113 free questions, no account
UWorldStep 1 QBank (Step 2 CK sold separately)One exam per purchase$349 for 30 days to $749 for 730 days; $579 for 360 days30 to 730 days; can't be paused once activated3,600+ Step 1; 4,250+ Step 2 CK and shelfNo trial account; a demo with a few sample questions
AMBOSSQbank with membershipQbank access includes Step 1, Step 2 CK, shelf and Step 3 questionsStep 1: $298 (1-month Qbank) or $378 (6-month Qbank), each with a 1-year membership that renews at $149 a year1 to 12 months of Qbank, depending on the package2,840+ Step 1; 3,460+ Step 25-day free trial
KaplanStep 1 Qbank (Step 2 CK Qbank sold separately)One exam per purchaseStep 1 from $199; Step 2 CK from $159Varies by plan; see Kaplan's site3,200+ Step 1; 3,100+ Step 2 CK7-day free trial

Prices and counts as listed on each company's website, checked 11 October 2026. Counts are as advertised and include different things. Argonaut figures are live from our bank.

The alternatives

The best USMLE-Rx alternatives, ranked

01

Argonaut: best overall USMLE-Rx alternative

Best for: Students who want exam-accurate questions and adaptive practice for both exams, without USMLE-Rx's price. Price: $48 once for Step 1 and Step 2 CK, no expiry.

Strengths

  • $48 once for Step 1 and Step 2 CK: no subscription, no renewal, no expiry.
  • Every question written to the NBME Item-Writing Guide, mapped to the official content outline and approved by a clinician.
  • ARGO chooses each session from your answer history: weak spots, confusion drills, spaced retests.
  • 113 free questions and 73 free Library chapters, with no account and no time limit.
  • Timed 20-question, 30-minute blocks that match the 2026 exam format.

Trade-offs

  • A smaller bank: 1,090 Step 1 and 737 Step 2 CK questions today.
  • No full-length self-assessments; use the NBME's official ones.
  • A newer name than the established banks.

Argonaut vs USMLE-Rx

Price
Argonaut: $48 once for Step 1 and Step 2 CK, with no expiry
USMLE-Rx: $299 for 12 months of both exams ($399 for the Rx360+ bundle)
How questions are made
Argonaut: Every question written to the NBME Item-Writing Guide, mapped to the official USMLE content outline and approved by a clinician (MD or DO)
USMLE-Rx: Questions that “match the difficulty” of the exam, with step-by-step explanations
Who picks your next questions
Argonaut: ARGO logs 16 data points per answer and builds each session itself: weak spots, confusion drills, spaced retests and coverage scouts
USMLE-Rx: Spaced-repetition flashcards (Study Stream); no adaptive question selection described
Free to try
Argonaut: 113 free questions with full explanations and 73 free Library chapters, no account and no time limit, plus a daily challenge
USMLE-Rx: 5-day free trial of Rx360+

More detail: editorial policy · how ARGO works

02

UWorld

Best for: Students who want the largest single-exam bank and can pay for each exam separately. Price: $349 for 30 days to $749 for 730 days; $579 for 360 days.

Strengths

  • The largest advertised banks for Step 1 and Step 2 CK.
  • Self-assessments included with 90-day and longer plans.
  • Familiar to most students and tutors.

Trade-offs

  • $349 to $749 per exam, and Step 2 CK is a second purchase.
  • Access runs on a clock and can't be paused once activated.
  • No trial account, only a short demo.

Source: UWorld Step 1 page, pricing and FAQ, checked 11 October 2026.

03

AMBOSS

Best for: Students who want a Qbank tied to a full medical reference library. Price: Step 1: $298 (1-month Qbank) or $378 (6-month Qbank), each with a 1-year membership that renews at $149 a year.

Strengths

  • Questions link straight into the AMBOSS medical library.
  • Optional adaptive sessions that resurface old misses.
  • One Qbank covers Step 1, Step 2 CK, shelf and Step 3.

Trade-offs

  • Qbank access is time-limited (1 to 12 months), with a membership that renews at $149 a year.
  • Only a 5-day free trial.
  • Fewer Step 1 questions advertised than UWorld or Kaplan.

Source: AMBOSS Step 1 page and pricing, checked 11 October 2026.

04

Kaplan

Best for: Students who want practice tests bundled with a Qbank and Kaplan's lecture notes. Price: Step 1 from $199; Step 2 CK from $159.

Strengths

  • Two full-length practice tests with each Qbank.
  • A 7-day free trial, the longest of the paid banks here.
  • Questions link to Kaplan's Lecture Notes books.

Trade-offs

  • Step 1 and Step 2 CK are separate purchases.
  • No adaptive question selection described: you build your own quizzes.
  • Access length and pricing vary by plan, so the real cost takes some digging.

Source: Kaplan Step 1 Qbank, checked 11 October 2026.

Side by side

Six metrics compared

USMLE-Rx and its alternatives compared on six metrics, as of 11 October 2026
MetricArgonautUSMLE-RxUWorldAMBOSSKaplan
Accuracy LeadsEvery question written to the NBME Item-Writing Guide, mapped to the official USMLE content outline and approved by a clinician (MD or DO)Questions that “match the difficulty” of the exam, with step-by-step explanationsWritten by licensed authors; described as “at or above exam-level difficulty” and aligned to the content outlineClinical vignettes in “the same format” as the licensing exams; questions linked to its medical library“Exam-like questions” in an interface that replicates the exam, with step-by-step strategies
Price Leads$48 once for Step 1 and Step 2 CK, with no expiry$299 for 12 months of both exams ($399 for the Rx360+ bundle)$349 to $749 per exam; $1,158 for a year of both$298 to $378 for a Step 1 package, plus a $149 yearly membership renewalFrom $199 (Step 1) plus from $159 (Step 2 CK)
Number of questions1,090 Step 1 and 737 Step 2 CK, in one purchase5,000+ across Step 1 and Step 2 CK Leads3,600+ Step 1 and 4,250+ Step 2 CK and shelf (two purchases)2,840+ Step 1 and 3,460+ Step 23,200+ Step 1 and 3,100+ Step 2 CK (two purchases)
Free resources Leads113 free questions with full explanations and 73 free Library chapters, no account and no time limit, plus a daily challenge5-day free trial of Rx360+No trial account; a demo with a few sample questions5-day free trial7-day free trial
Adaptability LeadsARGO logs 16 data points per answer and builds each session itself: weak spots, confusion drills, spaced retests and coverage scoutsSpaced-repetition flashcards (Study Stream); no adaptive question selection describedCustom tests by subject and system, quizzes from your weak areas, an adaptive study plannerOptional adaptive sessions: picks unanswered questions within your filters and resurfaces old missesBuild-your-own quizzes, progress reports and an AI tutor that explains answers
Up to date LeadsNewest published-bank record created 10 October 2026; 0 created in the last 30 days. Creation is not a publication or review dateNo update cadence stated on its pricing pageSays its QBank is “continuously updated”; no date of the latest additions shownNo date of the latest question additions shown on the pages we checkedNo date of the latest question additions shown on the pages we checked

How we compare each metric, and why, is in the best USMLE question bank in 2026.

To be fair

What USMLE-Rx still does best

  • Step 1 and Step 2 CK in one purchase.
  • 5,000+ questions and three self-assessments.
  • Spaced-repetition flashcards in the Rx360+ bundle.

Stay with USMLE-Rx if you want both exams in one subscription, or you rely on its First Aid-linked flashcards.

Free options

Free USMLE-Rx alternatives

No free resource replaces a full bank, but these cost nothing and don't expire:

Switching

How to switch from USMLE-Rx

  1. Try before you pay. Answer a block of free Step 1 or Step 2 CK questions and compare the vignettes and explanations with USMLE-Rx's.
  2. Keep your notes. Your error log and flashcards move with you; the review method in how to review USMLE questions works in any bank.
  3. Let ARGO find your gaps. Your first sessions scout the high-weight systems; after a few hundred answers ARGO targets your weakest topics directly.
  4. Or run both. If your USMLE-Rx access hasn't run out, use Argonaut as a second bank for fresh questions on the topics you keep missing.

Questions people ask

01What is the best alternative to USMLE-Rx?

For most students, Argonaut: $48 once for Step 1 and Step 2 CK, no renewal and no expiry, with ARGO building each question session around your weak spots. UWorld is the largest bank if cost isn't a concern.

02Is there a cheaper alternative to USMLE-Rx?

Yes. Argonaut is $48 once. USMLE-Rx lists Qmax at $299 for 12 months of Step 1 and Step 2 CK, and the Rx360+ bundle at $399.

03Is there a free alternative to USMLE-Rx?

Partly. Argonaut has 113 free questions with full explanations and 73 free Library chapters, with no account and no time limit. The USMLE program also publishes free sample test questions on usmle.org. USMLE-Rx itself offers a 5-day free trial of Rx360+.

04Does USMLE-Rx have more questions than Argonaut?

Yes. USMLE-Rx advertises 5,000+ Qmax questions across both exams; Argonaut has 1,090 Step 1 and 737 Step 2 CK questions today, with new batches added regularly.

05Is USMLE-Rx adaptive?

Its Flash Facts use spaced repetition (Study Stream), but its pricing page doesn't describe adaptive question selection in Qmax. Argonaut's ARGO chooses which questions you see next from 16 data points per answer. See how ARGO works.

More guides

Switch from USMLE-Rx for $48.

Try 113 free questions first, no account needed. Full access covers Step 1 and Step 2 CK, once, with no expiry.

Try free questions Get full access, $48

$48 · once · Step 1 + Step 2 CK