These four products all sit in the same broad category, learning and evidence capture beneath a system of record, and they capture genuinely different kinds of learning through genuinely different mechanisms. Umbil infers learning from your clinical questions and workflow as you work. BMJ Portfolio tracks BMJ Learning activity plus whatever external CPD you add manually. GPnotebook Pro records reading, video and podcast activity within its own ecosystem. And iatroX builds evidence through assessed learning specifically, questions attempted, Tutor-diagnosed corrections, and retesting that demonstrates retention rather than mere exposure.
Ten comparison categories
What triggers a CPD entry? For Umbil, a clinical question, referral or patient-information task as it happens. For BMJ Portfolio, completed BMJ Learning content, plus anything external you add yourself. For GPnotebook Pro, a page view, video watch or completed quiz. For iatroX, an attempted question, a Tutor session, or a scheduled retest.
Is the learning passively recorded or actively tested? Umbil and GPnotebook Pro both lean toward passive recording of activity you were already doing. BMJ Portfolio sits similarly for its automatic BMJ Learning tracking, though its reflection prompts add an active layer on top. iatroX is built around active testing specifically, since the whole architecture exists to distinguish attempted-and-correct from attempted-and-wrong, a distinction pure activity tracking cannot make.
Is the source visible? Each platform should make clear where a given piece of content or learning point originated; worth checking directly for each rather than assumed uniform.
Is a reflection generated, prompted or user-authored? Umbil drafts structured reflections from captured activity. BMJ Portfolio offers AI-supported prompts for the user to work from. GPnotebook Pro allows the user to add reflective notes to tracked activity. iatroX's Tutor interactions surface the specific misconception the reflection should actually address, informing an authored reflection rather than generating one wholesale, the distinction this cluster's dedicated coverage of AI-assisted reflection treats as the whole point.
Is actual knowledge assessed? This is where the four platforms diverge most sharply. Umbil, BMJ Portfolio and GPnotebook Pro each track that content was engaged with; none of the three, on current public material, tests whether the underlying knowledge was actually retained. iatroX's question-and-retest architecture is built specifically to answer this question.
Can the user demonstrate delayed retention? Only a platform running scheduled retesting can produce this evidence directly, iatroX's specific design goal, distinct from a platform that can only show what was read or attempted once.
Does it map to professional standards? Umbil explicitly maps to GMC domains. Confirm the equivalent for BMJ Portfolio, GPnotebook Pro and iatroX directly against your own appraisal framework's requirements.
Can it export to a full appraisal system? BMJ Portfolio integrates directly with FourteenFish specifically. GPnotebook Pro exports a manual PDF with no direct sync. Umbil and iatroX both produce exportable records intended to drop into whichever system of record you actually run.
Does it support the user's whole scope of practice? Worth testing directly for each platform against teaching, leadership, extended roles and any private work you undertake, since a tool built primarily around one narrow activity type may not capture the full breadth appraisal genuinely requires.
And what happens after cancellation? A question worth a direct, confirmed answer from every platform in this category before you rely on any of them for a multi-year professional record.
The likely verdict
There is no universal winner, and pretending otherwise would misrepresent a genuinely varied category. BMJ Portfolio for free, general-purpose capture with a direct FourteenFish bridge. GPnotebook Pro for GPs already heavily using GPnotebook, converting existing reading habit into exportable records. Umbil for learning drawn directly from clinical workflow with minimal separate logging. iatroX for evidence of genuinely assessed and retained learning rather than passive activity. And FourteenFish, Clarity or GP Tools for the actual appraisal submission every one of the four learning layers above ultimately feeds.
Frequently asked questions
Should I use more than one of these four simultaneously?
Rarely necessary, since their functions overlap considerably; the more common and more useful combination is one learning layer from this group of four paired with one system of record, rather than running several capture tools that would duplicate each other's work.
Which of the four best demonstrates genuine competence to a sceptical appraiser?
Evidence of assessed and retained learning specifically, a wrong answer corrected and shown to hold on a later, unprompted retest, carries more weight than a record of content merely accessed, which is the specific case for the assessed-learning approach over passive activity tracking.
Does automatic capture risk generating too much low-value volume regardless of which platform is used?
Yes, a risk this cluster treats directly elsewhere: any of these four can produce more entries than an appraiser wants to see, and the discipline of selecting a proportionate, well-reflected sample matters more than which platform generated the underlying pool.