iOS · free
Train the complete Mnemonica shift.
Practice the full chain: named card → Mnemonica position → named position → shift calculation → card at the shift position. Your answer is the card you cut at.
Correct answers advance automatically. A wrong answer pauses the drill and shows the card positions, arithmetic, shift, and correct cut card.
Solve 10 shifts as quickly as possible. The timer runs from the first problem through every mistake, and your best total time stays on the device.
Select rank and suit in either order. The app submits as soon as both are chosen, drilling the operational answer you need in performance.
ShiftTrainer is for magicians who already know the Mnemonica stack and want to make the shift calculation practical under pressure. It does not include a Mnemonica reference table or teach the stack itself.
The prompt gives you a card and a named position. Work out the non-zero shift, then answer the question that matters in the handling: What card do you cut at?
Read the concise workflow for Practice and the 10-Shift Challenge.