A recent poll by TMW revealed that 60% of advisers used an iPhone or an iPad.
The app allows intermediaries to work out how much their client could borrow from TMW after entering an estimated purchase price or valuation and estimated rental income on the property.
Ian Andrew, managing director of Intermediary Sales at Nationwide, said: “We are really pleased with how popular this app has been. Brokers can check the maximum amount TMW could lend their client even when they aren’t logged on to their computer.
“The app is really easy to use and is part of our ongoing commitment to making life easier for brokers.”