Forgetting curve

[Pantyhose-X]

Record time for each card, Forgetting curve Scientific revision time,
A ringtone alerts the user that it's time to review.
After playing the voice, it automatically switches to the next card.

[sapatevaibhav]

Automatic next card is implemented.

[bhavanishanker-png]

Please allocate this task to me. I'm capable of tackling it as I possess all the requisite skills to address the matter at hand.

[sapatevaibhav]

While doing so remember the progress of #4 too as that issue proposes the same thing too...

[hharshapareekk]

Would be happy to work on this issue. Please allocate it to me