A free program for Android, by Brain Craft Limited.

Add Music to Video is the best way to make movies and videos with your photos, add your favorite songs, trim them, and export them as high-quality videos.

You can do it in a few steps:

Choose a photo from your device or take one using the built-in camera. Add the music you want, select the duration, and the format. You can choose between two options: join the clips using a music track, or create a new video from scratch. You can also change the audio volume and add special effects such as fading in or out. Once you’re finished, you can export the video to your device’s gallery or share it on social media.