Physical mala strengths
Beads create rhythm, texture, and a direct connection to tradition. Many practitioners will still prefer them for formal practice.
Digital counter strengths
Chantika helps when beads are unavailable, when you need history, or when a phone is already the practical device in your pocket.
Best answer
Use the physical mala when it supports your practice. Use a digital mala counter when counting, history, privacy, or portability matters.