Quick answer: Both give you NCLEX-style questions with rationales, Next Generation (NGN) practice and adaptive CAT practice tests. The main differences are price and extras. NCLEX Key costs $59 for 30 days or $99 for 90 days and includes a pass guarantee. UWorld costs $139 for 30 days or $229 for 90 days and adds review videos, flashcards, self-assessments and an AI tutor, with no pass guarantee listed. In other words, NCLEX Key’s 90-day plan ($99) costs less than UWorld’s 30-day plan. UWorld prices are from its website on September 29, 2026.
This comparison is written by NCLEX Key. UWorld details come from UWorld’s NCLEX-RN page, checked on September 29, 2026. Prices and features change, so confirm on UWorld’s site before you buy.
UWorld is one of the best-known NCLEX-RN question banks, and a lot of students ask whether a lower-priced option can do the same job. The honest answer depends on what you need: some students want the extras UWorld bundles in, others mainly need questions, rationales and a readiness check before test day. Here is how the two compare.
NCLEX Key vs UWorld at a glance
| NCLEX Key | UWorld | |
|---|---|---|
| 30 days | $59 | $139 |
| 60 days | Not offered | $169 |
| 90 days | $99 | $229 |
| 180 days | $149 | $329 |
| Longer plans | Not offered | $389 (360 days), $449 (730 days) |
| Payment | One-time payment; or 4 interest-free payments every 2 weeks with Klarna or Afterpay (subject to approval) | One-time payment; or monthly payments with Affirm |
| Practice questions | 3,500+ on every plan | 2,600+ (30 days) up to 3,100+ (360 and 730 days) |
| Next Generation (NGN) | All 6 NGN item types, plus 30 unfolding case studies | 600+ NGN questions |
| Rationales | On every question | Detailed rationales |
| Adaptive (CAT) practice | Full adaptive CAT simulator that reports whether you are above the passing standard | Adaptive (CAT) practice tests; 1 to 6 self-assessments of 100 questions each, depending on plan |
| Extras | Performance tracking by NCLEX category | Review videos, digital flashcards, notebook, mobile app, AI tutor (UAsk); study planner from the 60-day plan up |
| Pass guarantee | Yes, on every plan (conditions below) | None listed on its NCLEX-RN page |
| Try before buying | 25 free questions and 2 case studies, no credit card | 7-day free trial |
Our pick for best value: NCLEX Key
- Lowest listed price here: $59 for 30 days, $99 for 90 days, one-time payment
- Every plan includes all 3,500+ questions, all 6 NGN item types, 30 unfolding case studies and the adaptive CAT simulator
- A pass guarantee on every plan, including the $59 plan
- Start free: 25 questions and 2 case studies, no credit card
Where UWorld stands out
- More built-in study tools. Review videos, flashcards, a notebook and an AI tutor come with every plan, and a study planner is included from the 60-day plan up.
- Self-assessments. Depending on plan length, you get 1 to 6 self-assessments of 100 questions each to benchmark your progress.
- Long access options. Plans run up to 730 days, useful if your exam date is far off or uncertain.
Where NCLEX Key stands out

- Price. 30 days cost $59 instead of $139, and 90 days cost $99 instead of $229.
- The same question bank on every plan. All 3,500+ questions, all 6 NGN item types, the case studies and the CAT simulator are included whichever plan you pick.
- A pass guarantee. If you are a first-time NCLEX-RN candidate, have an active plan when you test, complete at least 500 practice questions and finish one full CAT simulation with the result “Above the passing standard” before your exam, and you do not pass, you get a full refund. Full terms.
- A free start with no card. 25 free NCLEX-style questions and 2 case studies, with your progress carried over if you upgrade.
Which should you choose?
Choose UWorld if
- you want videos, flashcards and an AI tutor in the same place as your questions,
- you want several 100-question self-assessments along the way, or
- you need more than 180 days of access.
Choose NCLEX Key if
- you mainly need NCLEX-style questions, rationales and NGN practice,
- you want an adaptive CAT simulation to check readiness before test day,
- you want a pass guarantee, or
- you are paying for prep yourself and want the lower price.
Can you use both?
Yes. Some students start with a lower-priced question bank and add a second source only for their weakest categories. If you do, spend most of your time on one bank and read every rationale; switching back and forth mostly repeats content you have already covered.
See how NCLEX Key feels before deciding: try 25 free questions and 2 case studies, no credit card. Comparing more options? Read the best NCLEX prep in 2026, compared.
More comparisons: NCLEX Key vs Archer Review and UWorld vs Archer Review vs NCLEX Key.
Also compared: UWorld vs Kaplan vs NCLEX Key and NCLEX pass guarantees.
Frequently Asked Questions
Is NCLEX Key cheaper than UWorld?
Yes. On September 29, 2026, NCLEX Key cost $59 for 30 days, $99 for 90 days and $149 for 180 days. UWorld’s NCLEX-RN page listed $139 for 30 days, $229 for 90 days and $329 for 180 days.
Does UWorld have a pass guarantee?
No pass guarantee is listed on UWorld’s NCLEX-RN page (checked September 29, 2026). NCLEX Key includes a pass guarantee on every plan for first-time candidates who meet its conditions.
Does NCLEX Key have Next Generation (NGN) questions?
Yes. NCLEX Key includes all 6 NGN item types (extended multiple response, extended drag-and-drop, drop-down, highlight, matrix/grid and bow-tie) and 30 unfolding case studies, with a rationale on every question.
Which has more questions, NCLEX Key or UWorld?
NCLEX Key has 3,500+ questions on every plan. UWorld lists 2,600+ questions on its 30-day plan, rising to 3,100+ on its 360- and 730-day plans, including 600+ NGN questions.
Can I try NCLEX Key or UWorld for free?
NCLEX Key gives you 25 free questions and 2 case studies with no credit card. UWorld offers a 7-day free trial.
Practice questions like these
Put it to the test with NCLEX-style practice questions — free, full rationale on every answer. No credit card.
Start Practicing FreeSources
- UWorld NCLEX-RN Review: plans, prices and features
- NCLEX Key pricing — NCLEX Key plan prices and what every plan includes
- NCLEX Key refund policy and Pass Guarantee — NCLEX Key Pass Guarantee conditions
Sources checked September 2026.