Applique is ornamental needlework in which pieces of fabric in different shapes and patterns are sewn or stuck onto a larger piece to form a picture or pattern. It is commonly used as decoration, especially on garments. The technique is accomplished either by hand or machine.
Patches are still embroidered images, but they are different. Patches are embroidered onto a substrate of material often a number at a time-not individually like direct embroidery. Patches then lay on top of the fabric and are either ironed on or sewn on.