According to a purportedly leaked internal document, U.S. wireless carrier Sprint is no longer offering device subsidies on two-year contracts to customers opening new accounts, instead pushing activations toward leasing and installment plans.

The sales sheet, obtained by Android Central, notes smartphone subsidies are now restricted to upgraders and those customers looking to add a line onto existing accounts. The new policy does not apply to new tablet purchases, which are still eligible for two-year contracts.

Sprint's decision is in line with a broader industry move away from smartphone incentives. Verizon and T-Mobile have already done away with contract pricing as part of a move to monthly installments, upgrade plans and device leases. America's second-largest carrier, AT&T, will join the pack and end contract subsidies on Friday.

In August, Sprint launched a new "iPhone Forever" plan designed to give Apple fans a clear upgrade path to the latest and greatest hardware. Under Sprint's terms, customers pay a monthly premium on top of wireless and data service fees, and in return are made immediately eligible for a new iPhone each year when trading in a previous model. Actual pricing depends on level of service, handset capacity and other variables.