Z4Soft PApp Mortgage Calculator is intended for the calculation of mortgage loans or personal loans. PApp Mortgage creates a payment schedule for a fixed-rate loan with optional extra payments. You can either calculate mortgage payments based on your inputs for a mortgage amount, rate and term or you can seek the size of mortgage that you can afford based on your inputs for a particular payment, rate and term. The payment frequency can be: Annually, Semi-Annually, Quarterly, Bi-Monthly and Monthly. You can create Principal/Interest charts, save your mortgage models, use password protection, export your models to MS Excel (.xls). A handy way to manage your loan or mortgage payments.