Mobile check deposit, or "remote deposit capture" as it's known to banks, lets you deposit a check into your bank account by taking a picture of it with your smartphone or tablet.
One Bank of America study of 1,300 adults found 63% of those who used a smartphone to do their banking had used mobile deposit.
And a November 2014 survey from The Pew Charitable Trusts found that 37 of the nation's 50 largest banks offer consumers mobile deposit.
Read more: http://www.bankrate.com/finance/banking/mobile-check-deposit-facts.aspx