The films prepared through JNSP (Jet Nebulizer Spray Pyrolysis) and SNAAP (Sonicator Nebulizer Assisted Atomizer Pyrolysis) are studied. The physical properties of the samples are studied to line out the efficious method. SNAAP ZnO films has high intensity XRD peaks with better crystallinity, high transmittance, low absorption, values of texture coefficients greater than unity and nonobotic structures like butterfly. The size of the Crystal, dislocation density, microstrain and band gap are also examined. Among the samples of the study the films prepared by SNAAP method exhibits better physical properties such as transmittance (98%), band gap (3.0 eV), crystal size (9.28 nm) and micro strain (1.8 x 10-3 (line-2 cm-4 )). The voidless nano structures and improved physical attributes of the thin films are highly useful for the development of devices like diodes and solar cell.