Structure it, then reveal.
Free, on-the-go case interview prep for MBB candidates. Flashcard drills for structuring and brainstorming, fully on-device.
Built for the two skills that get tested
Casebook practice, turned into quick reps
Caser turns casebook practice into active-recall drills: read a prompt, think it through, reveal the model answer, self-assess. Designed for 60-second sessions with minimal typing.
Structuring drills
Read a case prompt, structure the problem, then reveal a model issue tree. It's a MECE hierarchy, scored on the frame you'd present and defend.
Brainstorm drills
List ideas against an open brief, then reveal the expected MECE idea buckets. There's no timer, because brainstorming is about breadth, not the clock.
Reveal & self-rate
Nailed it, Partial, or Missed. An honest, tap-driven self-assessment after every drill, with no typing and no AI grading.
Build it mode
Have a few more minutes? Outline your own answer first, then compare it against the model answer, line by line, in the same tree grammar.
Session results
End a run whenever you like and see your totals, your self-rating split, and the full list of drills you just took.
Daily reminders
An optional nudge at a time you choose. It skips any day you've already practiced, and it's entirely local: nothing leaves your phone.
Two drills, two ways to take them
Choose the drill that matches the skill
Structuring and Brainstorm train different muscles. Take either one as a quick tap-through, or slow down and build your own answer first. Either way, your choice is remembered the next time you open the app.
The frame you'd defend
One MECE issue tree, asymmetric on purpose. The hook branch carries more depth than the hygiene branches, and that asymmetry is the prioritization.
Volume and creativity
Many distinct ideas, scaffolded into buckets rather than judged as a single answer. No timer, since reps happen on the go.
Tap it, or type it
Reveal & rate keeps the default loop entirely tap-driven. Build it adds an outline step for a harder, more deliberate rep.
More than a flashcard deck
Practice that fits the moment you have
Caser scopes every drill to what you want to work on, keeps rating honest and self-driven, and remembers how you like to practice.
Scoped to what you're drilling
Filter by difficulty and case type (or brainstorm type), and Caser draws a random exercise you haven't attempted yet. There's no browsable list to get lost in.
Honest self-rating
You call it yourself, every time. No AI pretending to know your answer better than you do.
Type it out when it counts
Build it freezes your outline the moment you tap Compare, then lands the model answer beneath it in the same grammar. No hindsight editing.
A run you finish on your terms
Practice as many drills as you like, then end the session manually and see the full breakdown. Nothing gets cut short on its own.
Reminders that respect your day
Turn on a daily nudge from Settings and Caser keeps it scheduled on its own. It only skips today's reminder once you've already practiced.
Built for iPhone & iPad
Native SwiftUI, Liquid Glass, full Dynamic Type and VoiceOver support. A real iOS app, not a wrapped web page.
Reveal the model answer, then rate yourself
Every drill ends the same way: the model answer appears, and you decide honestly how close you were.
Structuring · ParkWell, Pricing Peak-Hour Parking
How should ParkWell price to capture peak demand without losing off-peak drivers?
- What each hour of the day is worth to drivers
- Peak segments, least price-sensitive
- Off-peak elasticity
- Shifted vs. lost demand
- What competitors and substitutes let us charge
- Cost and capacity as the boundary, not the driver
Private and built for speed
Caser is fully offline. There's instant feedback, zero lag between drills, and a native iOS experience that gets out of your way.
- No accounts. Open the app and start practicing.
- No tracking. No analytics, no ads, no profiling.
- No data leaving your phone. Everything stays on device.
- No network required. Practice anywhere, anytime.
Free case-interview prep starts now
Read a prompt, reveal the model answer, self-assess.
Caser is now in public beta on TestFlight.