The neutral layer above every prep platform.
Aspirants juggle Marrow, PrepLadder, eGurukul, Cerebellum and DocTutorials — plus a spreadsheet — with no honest view of what to actually do next. Calvetra is the layer that sits on top: one canonical map of what you've covered, what's high-yield, and what to do today.
- Cross-platform coverage — “done on Marrow” satisfies the topic everywhere
- Video-first planner that backward-plans from your locked exam date
- Spaced revision with verified re-tests, not self-report
Calvetra is a coined brand name in development; trademark clearance is still pending. Everything below is described as it works today in early access — measured, not marketing.
Watch: Renal physiology (PrepLadder)
High-yield · not yet covered on any platform
Re-test: Cardiology (Day-3)
Spaced revision due — verify it stuck
The problem it kills
Six apps, one spreadsheet, zero clarity.
Every platform tracks its own content in its own silo. The spreadsheet that's supposed to unify them is manual, stale, and lies to you the moment you fall behind. Calvetra displaces the spreadsheet — not your platforms.
Fragmented progress
“Did I finish Cardio?” depends on which app you open. No platform sees the others.
Effort ≠ yield
Raw MCQ counts reward volume. They don't tell you what's actually asked in the exam.
Revision decays
You “revised” it — but did it stick? Self-reported coverage quietly rots before exam day.
What it is
IMDb × cross-platform tracker × do-next coach.
Not another content silo — a neutral meta-layer above the platforms you already pay for. It reads as one honest, canonical view: what exists, what's high-yield, what you've covered, and the single next action worth taking.
Calvetra never sells your content or hosts theirs. It organizes what you already have into a plan you'll actually keep.
Neutral
No platform buys its way to the top. Ratings are outcome-verified; money buys visibility, never the score.
Canonical
One topic spine maps every platform's content to the same skeleton, so “done” means the same thing everywhere.
Directive
It doesn't just show dashboards — it tells you the next high-yield thing to learn, practice, or re-test.
Capture
What Calvetra makes visible.
The real, shipped features — described honestly, measured against what the app does today.
Union progress across every QBank and lecture platform.
Mark a topic done on Marrow and it's done across your whole plan. Calvetra unions coverage across platforms so you stop re-doing what you've finished and stop missing what you never started.
- Per-platform state rolls up into one canonical topic status
- No double-counting, no “which app said what” confusion
- Coverage gaps surface before they become exam-day surprises
Relevance rank — not a quality rank. Based on PYQ topic frequency, not likes.
Study by what's actually asked — not raw MCQ counts.
Every topic sits on one canonical spine, tagged by how often it actually appears in previous-year questions. High-frequency clusters rise to the top so your hours go where the marks are.
- PYQ-frequency importance instead of “more MCQs = better”
- Bridge topics surface so high-yield clusters connect
- One spine every platform's content maps onto
Enforce
A plan you'll actually keep.
Backward-planned from a locked exam date, structured the way learning really works.
Learn → practice → revise, scheduled for you.
Calvetra schedules the whole loop — watch the lecture, then practise MCQs, then revise — and backward-plans it from your exam date. Fall behind and it auto-reschedules, tracking adherence (did you keep the plan) rather than raw hours.
- Video-first: lecture-watching is a first-class, scheduled step
- Auto-reschedule when life happens — the plan stays honest
- Adherence tracking from real activity, not a hours diary
Each amber dot is a re-test that proves retention. Miss it and the topic drops back into the queue.
Retention shown by doing, not by claiming.
Every learned topic enters a 1-3-7-15 forgetting-curve queue. On each interval Calvetra re-tests you — a short, verified check. Pass and the interval widens; miss and it comes back sooner. You can't “✓ revised” your way to a false sense of readiness.
- Verified re-tests, not self-reported ticks
- Intervals adapt to how well it actually stuck
- Your true retention is visible before the exam, not after
Release · exam-ready
Engines for the final stretch.
When the clock matters most, Calvetra reprioritizes around the exam in front of you.
Last-10-days crunch engine
A live exam-crunch mode that reprioritizes your remaining days toward the highest-yield, weakest-retention topics.
Rank / college predictor
Turns your coverage and performance signals into a grounded expectation of rank and reachable colleges.
Weak-spot insights
Surfaces the topics quietly dragging you down — where effort will move your score the most.
The moat
Neutral faculty & curator ratings.
Aspirants pick faculty and resources on hearsay and marketing budgets. Calvetra rates them by outcome — verified by the people who actually made it — on a neutral layer no platform can buy.
Money buys visibility, never the score. Ratings come from outcome-verified users, tagged to real results.
Names shown are placeholders — the pilot rates real faculty from verified outcomes.
How it fits the studio method
Capture · Enforce · Release.
Capture
Cross-platform tracking unions your real coverage; the PYQ spine captures what actually matters.
Enforce
The planner + spaced revision enforce the loop; verified re-tests won't let coverage rot.
Release
Do-next, the crunch engine and predictor release a clear, exam-ready action every single day.
Trust & architecture
Free, local-first, yours.
- Free to use — the core loop is not paywalled
- Local-first: works offline, your data lives on your device
- Optional Google account for cross-device sync
- Optional accountability & social layer — opt in, never forced
- Neutral by design: no platform can buy its ranking
Honest framing
Early access, in development.
Calvetra is a private pilot. The core loop — tracking, planner, spaced revision — is usable end to end; breadth and polish are still landing. We'd rather ship something honest and measured than oversell it.
FAQ
The obvious questions, answered.
Does Calvetra replace Marrow / PrepLadder / eGurukul?
Do I need to pay for it?
How is “importance” decided?
What makes a re-test “verified”?
Can faculty or platforms pay for better ratings?
Is this the final product?
Next step
Study with a system, not a spreadsheet.
Join the private pilot and get the cross-platform tracker, video-first planner and verified spaced revision — free, local-first, early access.
The platforms sell you content. Calvetra tells you what to do with it — and proves it stuck.