Is the fruit a single-seeded cherry (also called a drupe), less than 1/2" in diameter; with the leaves about 3" long? Hint: stems of the small shrubby trees usually have sections covered with a disease called black knot, which looks like the name implies. It is a common chokecherry (Prunus virginiana).
Is the fruit a small pome (multi-seeded and apple-like), turning dark blue to purple at maturity; with the leaves about 1 1/2" long? It is a Utah serviceberry (Amelanchier utahensis).