Get 4G LTE Only Mode And LTE Network Mode With Force 4G LTE Only App.

This 4G LTE Only - LTE Network Mode app will help you change network to 4G/3G/2G and stay in chosen network. No more auto switch between 4G/3G. If you have free 4G data transfer and you must pay for 3G, just set up your network for only LTE. Force LTE not supports every phone. It is depends what phone brand your phone is. Some phone brands block opportunity to force switch network.

Disclaimer:
Some phones do not allow access to this function.
Some phones can not make calls when they are in 4G lte mode.