Film once.
Get both.
ReelDuo records your front and back cameras together — then saves every take as a vertical 9:16 and a horizontal 16:9. No filming twice. No cropping in post.
Two shapes from a single tap.
Every recording is exported as a perfectly synced vertical and horizontal file — frame both at once with live crop guides, then post to every platform without re-editing.
Vertical
9:16 · Reels / ShortsHorizontal
16:9 · YouTubeEverything you need in one camera.
Record both cameras at once
Shoot front and back together for reactions, vlogs, and commentary. Drag and resize the picture-in-picture exactly where you want it — multicam is completely free.
4K / 60 capture
HEVC at native-camera quality, with up to 4K at 60fps on Pro.
Pause & resume
Stop and pick up again into one continuous clip — no separate files to stitch.
Split or picture-in-picture
Stack both cameras top & bottom, or float one as a PiP with custom shapes & borders Pro.
Smooth & level
Built-in stabilization plus a live horizon level for straight, steady footage.
Full manual control
Tap to focus, AE/AF lock, pinch zoom, exposure dial, rule-of-thirds grid, mirror & mic options.
Save & share anywhere
Keep takes in Photos or Files, then share straight to TikTok, Instagram, and more.
A clean, full-screen camera.
Zero learning curve — open it and shoot. Every control is one tap away.
No subscription on the basics.
Record dual-format video and front+back multicam for free. Unlock the creative suite once — it's yours forever.
Everything to get started
- Front + back multicam recording
- Vertical 9:16 and horizontal 16:9 from one take
- Pause & resume, mirror, mute, horizon level
- Manual focus, exposure, zoom & grid
- Stabilized capture, save to Photos or Files
Pay once — no subscription, ever
- Everything in Free
- Remove the watermark
- Record in 4K at 60fps
- Split-screen layout & camera swap
- Custom PiP shapes & borders
- One purchase, yours forever
Questions, answered.
Which iPhones support Duo (front + back) mode?
Simultaneous front + back recording uses Apple's multi-camera support, available on iPhone XS / XR and later. On older models you can still record single-lens video in both 9:16 and 16:9.
Is Pro really a one-time purchase?
Yes. ReelDuo Pro is a single $2.99 unlock — no subscription, no recurring charges. Buy it once and it stays unlocked, and restores free on your other devices.
Does it need an account or internet?
No. There's no sign-up and no login. Everything records and saves on-device — ReelDuo collects no data and works fully offline.
Where do my recordings go?
Straight to your Camera Roll, or to Files under "On My iPhone → ReelDuo." From the recent thumbnail you can jump to Photos or open the share sheet to TikTok, Instagram, and more.
What's the watermark, and how do I remove it?
Free exports carry a small ReelDuo mark. Unlocking Pro removes it, so your videos export completely clean.
How big is the app?
Tiny — under 1 MB to download. ReelDuo is built to be fast and light, with no bloat and nothing running in the background.
Stop filming twice.
ReelDuo turns one tap into every format you need. Free on the App Store for iPhone.