Monitor+ is a free multimedia application developed by Jet Sun Tech Ltd that allows users to turn their Android phones into professional camera monitors instantly. The app is designed to work with Sony a7R IV, A9 II, a7C, a7S III, A1, FX3, FX30, ZV-1, ZV-E10, a7 IV and newer models for wireless connection. However, when using a wired connection, the app also supports previous camera models such as A7 III. The app now also supports connecting to a UVC/Capture Card device.

The app offers a wide range of features, including live view, remote control for shutter speed, iris, ISO, WB, wired or wireless connection, touch AF and display focus point, record and playback live view signals, assist functions such as false color, Zebra, Waveform, Histogram, Vectorscope, Guide, Focus Peaking, Desqueeze, LUTs, chroma keying, overlay, focus pulling, flipping, and screen lock. The Pro version also offers additional features. Please note that Monitor+ is not affiliated with Sony Corporation in any way and is not a Sony product.