The SCE Endocrinology and Diabetes is one of the broadest SCE specialties — spanning insulin pump technology, pituitary surgery decision-making, adrenal incidentaloma investigation, metabolic bone disease, and reproductive endocrinology in addition to the enormous diabetes curriculum. StudyPRN has their largest SCE bank here at 888 questions, which reflects the sheer volume of content. This comparison assesses whether 888 static questions or 1,500 adaptive questions serves you better.
StudyPRN
StudyPRN's Endocrinology bank is their strongest offering by question count — 888 questions written by consultant endocrinologists. The content covers the full JRCPTB curriculum including dynamic function test interpretation, diabetes pharmacotherapy, and the rarer endocrine conditions (phaeochromocytoma, Cushing's, acromegaly) that many registrars encounter infrequently in clinical practice.
At £149 to £199 for three months, this is one of their more expensive specialty subscriptions. The familiar limitations apply — no adaptive learning, no spaced repetition, basic analytics, responsive website rather than native app.
The 888-question count is respectable but creates a specific problem for endocrinology: the curriculum is so broad that 888 questions spread across diabetes (types 1 and 2, emergencies, technology), thyroid, pituitary, adrenal, bone, reproductive, lipids, obesity, and neuroendocrine tumours results in approximately 50 to 100 questions per major domain. For domains like adrenal disorders or reproductive endocrinology, that may not be enough to cover the full range of clinical scenarios tested.
iatroX
iatroX's SCE Endocrinology bank contains over 1,500 questions — roughly 70 per cent more than StudyPRN. The additional volume is most valuable in the domains where breadth matters: diabetes technology (insulin pumps, hybrid closed-loop systems, CGM interpretation), reproductive endocrinology (PCOS, hypogonadism, transgender endocrinology), and the rarer endocrine conditions where clinical exposure is limited.
Dynamic function test interpretation questions are tagged separately, allowing you to run focused practice sets on Synacthen tests, dexamethasone suppression, water deprivation tests, insulin tolerance tests, and OGTT interpretation. This is particularly important because dynamic function test questions are among the most discriminating in the exam — candidates either know the interpretation criteria or they do not, and the questions are not amenable to clinical reasoning alone.
The adaptive algorithm addresses the breadth problem directly. If your diabetes knowledge is strong from clinical practice but your pituitary and adrenal knowledge is weaker, the system shifts emphasis automatically. For a curriculum this broad, manual revision balancing is difficult — most candidates naturally gravitate toward diabetes (which feels clinically familiar) at the expense of the rarer conditions that are equally represented in the exam.
All included at £29 per month or £99 per year.
The verdict
StudyPRN's 888-question Endocrinology bank is their best individual offering and is a credible preparation tool. If you are committed to StudyPRN for other reasons (institutional recommendation, prior positive experience), the Endocrinology bank will serve you adequately.
If you want more questions across the broader curriculum domains, adaptive learning that corrects the natural tendency to over-revise diabetes at the expense of rarer conditions, and focused dynamic function test practice, iatroX is the stronger choice — at roughly half the price for three months of access.