Split screen video — two camera angles playing at the same time — is everywhere: reaction clips, product demos, tutorials that show your face and your screen, dance duets, and "here's what I see vs. here's my reaction" edits. The hard part isn't the editing. It's capturing both angles at the exact same moment, perfectly in sync. On iPhone, the clean way to do that is to record both cameras at once in a single take.
What "split screen video" actually means
People search for "split screen" to mean a few related things:
- Front + back at once — your face reacting while the rear camera films what's in front of you.
- Two angles side by side — two camera feeds laid next to each other in the final video.
- Picture-in-Picture (PiP) — one camera as a small inset floating over the other.
All three start from the same requirement: two synchronized video streams recorded together. If you film them separately and try to line them up later, the audio drifts and the moments never quite match. Recording both at once solves that at the source.
How to record two cameras at once on iPhone
Apple's Multi-Cam system (iPhone XS and newer, iOS 17+) lets supported apps capture two cameras simultaneously. DualCam uses it to record front + back — or two rear lenses — together in one take, with a live Picture-in-Picture preview so you can frame both feeds before you hit record.
- Open DualCam and grant camera and microphone access.
- Choose your pairing: front + back (classic reaction look) or two rear lenses (wide + telephoto).
- Drag the Picture-in-Picture inset to frame both feeds. Swap the primary lens mid-recording if you need to.
- Tap record once. DualCam captures both streams together, in sync, up to 4K at 60fps with HEVC or H.264.
- Stop. You get your footage saved to Photos, ready to post or drop into an editor.
Because both feeds share one take, the timing is locked — no manual sync, no drift. For a deeper walkthrough of the recording flow, see record two cameras at once on iPhone.
Turning two feeds into a side-by-side split screen
Once you've captured both angles, laying them out is the easy part:
- Side by side: place the two files on two tracks in any editor (iMovie, CapCut, Final Cut) and position them left/right or top/bottom. Because they're already in sync, they'll line up frame-for-frame.
- Picture-in-Picture: keep DualCam's PiP layout for an instant inset look with no editing.
- Vertical or wide: DualCam can output a 9:16 vertical file for TikTok, Reels and Shorts and a 16:9 horizontal file for YouTube from the same session — so your split screen fits every platform. More on that in vertical vs horizontal video.
Which layout for which use case
| Use case | Best layout | Why |
|---|---|---|
| Reaction videos | PiP (face inset) | Keeps focus on the content, face in the corner |
| Tutorials / demos | Side by side | Equal weight to you and what you're showing |
| Vlogs / travel | Front + back split | You and the scene in one frame |
| Duets / collabs | Side by side (vertical) | Two performers, phone-native 9:16 |
Tips for a clean split screen
- Light both sides. The front camera is usually darker — add a little light on your face so the two feeds match.
- Mind the frame. Leave headroom in each feed so nothing important lands where the split line sits.
- Shoot the higher resolution you'll need. Recording at 4K gives you room to crop each side without losing quality — see the best iPhone 4K 60fps settings.
- Record once, post everywhere. Grab the vertical and wide versions in the same take so you're not re-shooting per platform. Here's how to film for TikTok and YouTube at the same time.
Get started
Split screen looks hard, but it comes down to one thing: record both cameras together, in sync, once. Download DualCam on the App Store and shoot your first two-camera take today.