A 4-year study compared CaCl2, Ca(H2PO4)2, and a polyphenolic acid chelate of Ca, applied as foliar sprays, for improving apple (Malus domestica Borkh.) fruit quality. Technical grade 77% to 80% flake CaCl2 consistently increased fruit Ca concentrations and reduced senescent breakdown after storage and occasionally reduced superficial scald after air storage. When materials other than Ca(H2P04)2 were applied at concentrations providing soluble Ca concentrations equal to that of technical grade CaCl2, equal benefits were achieved. Treatments that increased Ca also usually reduced Mg concentrations in outer cortex tissue. Ca(H2PO4)2 increased fruit P but not fruit Ca concentration, and a reduction in superficial scald was the only accompanying benefit to the fruit.