Choose a MRCPsych Paper A bank by what happens after you misunderstand a scientific concept, not simply by the number of questions advertised. A useful resource helps you distinguish similar ideas and apply them in unfamiliar wording. The next autumn sitting is 12 November 2026, according to the Royal College of Psychiatrists calendar, checked 3 October 2026.
This comparison is published by iatroX and includes its own product alongside Pastest and BMJ OnExamination. It uses published feature descriptions, not a hands-on ranking, an independent accuracy test or comparative pass-rate evidence.
Start with Paper A rather than a generic psychiatry bank
The College's preparation information describes Paper A as covering the scientific and theoretical foundations of psychiatry. The current format combines multiple-choice and extended-matching questions. Match your preparation to that scope rather than treating every psychiatry question collection as equivalent.
For a personal resource assessment, select a topic where your understanding is weak enough to expose the quality of the explanation. Inspect whether the resource defines the underlying concept, connects it to the question and explains why the closest alternative is wrong.
A long explanation is not necessarily a good explanation. Equally, a brief one may be insufficient when the missing prerequisite is never named. You are looking for a route from error to understanding that you will actually use.
Pastest combines several forms of explanation
As published when checked on 3 October 2026, Pastest's Paper A product advertises 1,500 questions alongside a textbook, practice-paper material, three-dimensional anatomy support and AI study functions. Those are vendor-reported features and a published library count, not evidence of superior learning outcomes.
This combination may suit a learner who needs a reference explanation or visual support alongside questions. The useful test is whether moving between those formats clarifies the concept without making the session cumbersome.
Pastest also advertises Tutor Mode and Ask Pastest. It would therefore be inaccurate to portray its product as a static bank that can only reveal an answer. Compare the actual guided-learning interaction and the context supplied to it, rather than awarding a unique tutoring category to iatroX.
Treat provider-created practice papers as commercial preparation material unless the source explicitly identifies an officially released paper. A title such as "past paper" is not, by itself, evidence that the College authored it.
BMJ OnExamination offers a question-and-review workflow
The BMJ OnExamination Paper A page, checked on 3 October 2026, advertises more than 970 questions, targeted practice, mock examinations, group-learning functions and offline app use. Confirm which functions are included in the package you are considering.
That published design may suit someone who wants a familiar question bank with review options and the ability to study without a continuous connection. Offline availability is a practical feature, not evidence that its explanations suit every learner better.
Use a sample to assess how easily you can revisit an uncertain answer and identify the reason for the error. A dashboard is useful only when it helps you choose an action. A topic percentage alone does not tell you whether the difficulty is terminology, prerequisite knowledge or application.
iatroX connects the attempted question to guided reasoning
According to October 2026 iatroX product information, its Paper A bank sits within adaptive question practice and spaced repetition. The Socratic Tutor begins from an attempted question and uses follow-ups to explore a misconception rather than simply providing the correct option.
A fictional learner, Emma, repeatedly confuses two closely related scientific terms. She first commits to an answer and explains her reasoning. The useful tutoring task is to identify which distinction she has missed, not to provide an increasingly polished paragraph that she reads passively.
She then attempts a different item without the explanation visible. That final step matters because remembering the wording of a correction is not the same as applying it. This is a proposed workflow, not a claim that iatroX has demonstrated better Paper A outcomes than the other products.
Apply the same source scrutiny to all AI-supported explanations. An apparently coherent answer may still require checking against the College's syllabus and an appropriate scientific reference.
Compare review effort, not only library size
The published question counts describe different collections. They do not tell you how many questions are relevant to your particular gaps, how many you will review carefully or whether you already recognise the items. Do not turn the counts into a league table of quality.
Try a small, consistent task in each available sample. Attempt a question, find the explanation, revisit the mistake and identify what you would study next. Note whether you can complete the cycle without repeatedly searching through unrelated content.
Accessibility is also personal. Check text size, visual density, navigation and the device you intend to use. A documented offline feature, a visual anatomy tool and a guided discussion solve different problems; none proves that the whole platform is universally easier to use.
Price the package you need through the sitting
On 3 October 2026, Pastest's published Paper A prices were £39.99 for three months, £59.99 for six months and £79.99 for twelve months. Its twelve-month Paper A package therefore costs less than iatroX's £99 annual bundle. BMJ OnExamination's current payable package price was not available in the public page reviewed; check its checkout and any institutional access rather than relying on an old figure.
For iatroX, October 2026 product information states £99 paid upfront annually, equivalent to £8.25 a month billed annually, or £29 monthly. The subscription includes question banks, Socratic Tutor, study planner, simulations and CPD tools together. Free question access and Ask-iatroX have no trial expiry or verification gate; ongoing tutoring is paid.
At those prices, three monthly payments total £87 and four £116. Annual payment is cheaper from the fourth month, not necessarily for a short run-up to November. The value argument for Paper A is the relevant combination of practice, explanation and planning, not access to examinations you do not need.
Decide by your learning problem
For a lower-cost, dedicated annual Paper A package with several explanation formats, Pastest deserves consideration. BMJ OnExamination may suit a learner whose established question-and-review routine depends on its documented offline app use. Consider iatroX when question-linked reasoning, adaptive review and planning address a specific gap in your preparation. Existing access and the explanation style you can use productively may matter more than adding another feature.
Do not maintain all three systems simply because each has attractive features. Keep one main bank, use an adjunct for a named gap and assess the result on unfamiliar questions. A stable preparation routine with good correction is preferable to repeatedly restarting because another platform advertises more content.
Frequently asked questions
Is Pastest Paper A only a conventional question bank?
No. Its October 2026 published product description includes a textbook, visual anatomy material and AI-supported study functions alongside questions.
Does a larger Paper A bank mean better preparation?
Not necessarily. Relevance, explanation quality, review habits and performance on unfamiliar questions matter alongside the published count.
Should I buy a second bank five weeks before Paper A?
Only when you can identify what it adds that your main resource does not provide. Another bank can otherwise duplicate practice and reduce the time available to review errors.