The application will streamline and automate the loan origination process.
The MMA launched earlier this year to provide a collaborative voice for the mortgage industry in promoting the availability of mortgage lending and the value of professional advice.
The two and 5-year fixed rates can be used to support customers purchasing a home or remortgaging for a cheaper deal.
The products in the range are available to first-time buyers, home movers and remortgage customers.
360 Dotnet intermediaries will be able to receive instant decisions from multiple lenders at once, without needing to rekey customer data.
Principality Building Society has partnered with Iress for its MSO (Mortgage Sales and Origination) software.
The products come with seven and 10-year fixed term options and are available on purchases up to £400,000.
CFI Chat will be operated by advisors, not a bot, and phone lines remain open to brokers.
The Society has also introduced 90% loan-to-value (LTV) lending within LA Postcodes.
The Flexible Family Assist Mortgage enables first and second time buyers to borrow up to 99% of the purchase price or property value (whichever is lower).