One Big Camera vs ReactionVid

One Big Camera records both of your cameras at once. Most camera apps make you choose: front or back. One Big Camera captures them together and composites them into a single frame - so the moment and your reaction to it live in the same video. RECORD BOTH CAMERAS AT ONCE - Split screen - front and back stacked in one frame - Side-by-side - two cameras across the frame - Picture-in-picture - a floating facecam over the main shot, drag it anywhere - Portrait + Landscape - capture a vertical and a horizontal version at the same time Both cameras are live simultaneously. This isn't a front/back toggle - it's true multi-camera capture. A REAL EDITOR, NOT JUST A SHUTTER Everything you shoot lands in an in-app library built for making something, not just storing clips: - Trim with a frame-accurate scrubber - Add a voiceover - narrate over a clip and mix it in - Combine several clips into one video - Organize clips into projects - Share anywhere, or save to Photos SCREEN RECORD WITH YOUR FACE Record your screen with a live facecam bubble - perfect for reactions, tutorials, and walkthroughs. WHO IT'S FOR - Creators filming reactions, duets, and POV content - Vloggers who want themselves and their subject in one shot - Anyone tired of stitching two separate clips together by hand No account required to start. Everything you capture stays on your device unless you choose to share it. One camera was never enough. Make it one big camera. Terms of Use (EULA): https://hellogoodday.com/onebigcamera/terms Privacy Policy: https://hellogoodday.com/onebigcamera/privacy

Your face. On anything. ReactionVid is the fastest way to record a reaction video on iPhone — pick what you're reacting to, hit record, and your take lands on top as its own editable layer. FOUR WAYS TO REACT VIDEO Pick any clip from Photos or Files and record your reaction over it while it plays. Perfect for commentary, duets, reviews, and "watch this" moments. WEBSITE Open any web page inside the app and react while you scroll. The page is recorded like a mobile browsing session, with your face on top — ideal for hot takes on news, drops, listings, and leaderboards. DUAL CAMERA Film the world with the back camera while the front camera records you. Both angles in one take — the moment and your reaction to it, perfectly in sync. CONVERSATION MODE Use an optional staged conversation layout for commentary, skits, interviews, and response-style videos. It records your own camera and microphone over selected content, then keeps the result editable in the timeline. YOUR REACTION IS A REAL LAYER Unlike screen recorders that burn everything into one flat video, ReactionVid keeps your camera as a separate overlay. Move it, resize it, restyle it — after you've recorded. • Background removal — no green screen needed, just you floating over the content • Freeze & draw — pause the moment and sketch right on it to make your point • Auto captions — word-accurate subtitles generated on-device • Multi-layer timeline — trim, split, and rearrange like a real editor • Color grade, transitions, effects — polish the whole thing in seconds EXPORT ANYWHERE One tap exports sized for TikTok, Reels, and YouTube Shorts. Portrait-first, full quality, no watermark surprises. Everything runs on your iPhone. No account, no upload, no waiting. Pick. Record. React. Post. REACTIONVID PRO Every editing tool is free to use. ReactionVid Pro removes the watermark from your exported reaction videos. • Weekly and monthly auto-renewable subscriptions, or a one-time lifetime unlock • Payment is charged to your Apple Account at purchase confirmation • Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends • Manage or cancel anytime in Settings > Apple Account > Subscriptions Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/