How to add music to a video on iPhone
A song changes how a video feels more than any filter. Video Grid Collage puts music under a single clip or a whole collage, balances it against the original sound and fades it in and out — so the track starts and ends where you want instead of cutting off mid-beat.
Step by step
Open your video or collage
In Video Grid Collage (free on the App Store), tap + on the start screen, choose Image or Video and pick your clips, or start from any template.
Insert a song
Tap Insert → Audio and choose Music library for songs on your iPhone or Audio file for tracks saved in Files.
Place and trim the track
The song appears on the timeline. Line it up with your footage and use Split to cut away the parts you don't need.
Set the volume and fades
Select the song to change its Volume, and add Fade In and Fade Out so the music starts and ends smoothly.
Balance the original sound
Tap a video clip, then Sound to lower its volume or Mute it — handy for wind noise or background chatter.
Export and share
Export up to 4K. The music is part of the file, so it plays on every platform.
Getting the music right
- Cut on the beat: line up the first strong beat with the first moment that matters in your video.
- Keep voices on top. If people talk in the clip, turn the music down well below them.
- Always fade out — a song that stops dead makes the ending feel like a mistake.
- For Reels and TikTok you can also post without music and pick trending audio in the app, which can help reach.
Try it yourself — free
Video Grid Collage · 4.9 on the App Store · 100 layouts, up to 100 clips in one collage