Comparison

Reaction Video Maker vs TwinPost Cam

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Reaction Video Maker

Record yourself reacting to videos or capture both sides of a moment simultaneously. Easily edit layouts, balance audio, and save your synchronized creations directly to your device. Keep all your projects for future edits without data collection.

Highlights
  • Dual camera recording
  • React to imported videos
  • Customizable video layout
  • Independent audio control
  • Save and re-edit projects
  • Private, on-device processing
Read full description

Some moments need two views: the thing being watched, and the face watching it. ReactCam plays a video on your phone while the front camera records the reaction — or rolls both cameras at once, so you keep what you pointed at and your own face seeing it. One take, in sync, nothing missed. HOW IT WORKS 1. Choose what they'll react to — a video from your Camera Roll or Files — or just roll both cameras live. 2. Hit record. ReactCam captures their face and the source video together, in sync. 3. Lay the two videos out however you like, balance the sound, and save straight to Photos. RECORD BOTH SIDES AT ONCE Dual Camera runs the front and back cameras together, so you catch what happened and who saw it in a single take. REACT TO ANY VIDEO Import from your Camera Roll or Files and react while it plays. The video and the reaction land in sync, every time. LAY IT OUT YOUR WAY Drag to move, pinch to resize. Put their face where it belongs, at the size it deserves. Works in portrait and landscape. BALANCE THE SOUND Independent volume for each track, so the reaction never gets buried under the video — or the other way round. KEEP EVERY REACTION Projects holds on to your recordings, so you can come back later, change the layout, and export again. Nothing is locked to the first version you made. PRIVATE BY DESIGN Everything happens on your iPhone. No account. No uploads. No tracking. No data collected, ever. Your videos never leave your device — which is exactly what you want from an app you point at your family. REACTCAM PRO Free to try, with 5 exports and 5 saved projects included. Unlock unlimited exports and projects with a single one-time purchase. No subscription, no ads, no watermarks.

About

TwinPost Cam

Read full description

Record yourself and what you're looking at, at the same time. TwinPost Cam runs the front and back cameras together and hands you every version you need to post. One take. No editing. Pay once. Works on iPhone XS, XR and everything newer. WAYS TO USE IT • Vlog while you show the view: the trail, the kitchen, the crowd • React to a screen, a game, a taste test, without splicing two clips • Interviews and podcasts, both people in frame • Tutorials and unboxings: your hands and your commentary in one file • Family moments where the person holding the phone is finally in the shot Post it and tag #TwinPostCam. We repost our favourites. ONE TAKE. FOUR FILES. • Vertical 9:16, ready for TikTok, Reels and Shorts • Horizontal 16:9 for YouTube • Raw front and raw back angles, untouched, for CapCut, Final Cut or Premiere Pick the files you want. They stay in sync because they share one clock. SWITCH LAYOUTS WHILE YOU TALK. Picture-in-picture, split, diagonal or side by side. Make the selfie window a rectangle, a square or a circle, and drop it in any corner. Tap it to swap which camera leads. Pinch either camera to zoom. Every change lands in the finished files on the very next frame. SHARE FROM THE LIBRARY. Instagram opens on your video. TikTok, YouTube, Facebook and X are one tap from the same sheet. Or AirDrop it to your Mac. CAPTIONS AND SCRIPTS, ON YOUR IPHONE. Turn on captions and every take gets a subtitle file, recognized on your iPhone, ready for your editor or the platform's caption upload. On iPhones with Apple Intelligence, the script assistant drafts a script from a topic, shortens it to 30, 45, 60 or 90 seconds, or makes it punchier, all on device. MADE FOR iPHONE DUO. Unfolded, the camera screen turns with you: a full-height preview between the controls, in portrait or landscape, and the teleprompter stays readable either way. READ IT. SAY IT. A teleprompter scrolls your script over the preview and follows your voice, recognized on your iPhone and never uploaded. Or set a steady speed. Mirror mode works with prompter glass. Pause, and it picks up where you left off. YOUR MIC. YOUR CHOICE. Front, back, bottom, stereo, or any USB or Bluetooth microphone, with a live level meter so you know it's working before you start. ONE CAMERA WHEN THAT'S ENOUGH. Back-only or front-only in a tap. Same files, same teleprompter, and it runs on every iPhone. BUILT FOR REAL SHOOTS. • Tells you how many minutes of space you have before you press record • Warns when the phone gets hot, and saves the take if it has to stop • A call or the lock screen mid-take? The files are finished and saved, and the app says what happened • Shows the real quality and frame rate both cameras can run at together, instead of promising 4K it can't deliver • Keyboard and pedal shortcuts for rigs NOTHING LEAVES YOUR PHONE. No account. No sign-in. No servers. No watermark. Captions and the script assistant run on your iPhone too. Your videos stay on your phone unless you share them. PAY ONCE. THAT'S IT. Five full recordings free, nothing held back and no watermark. Then one purchase unlocks TwinPost Cam Pro for good. No subscription, ever. Dual recording needs an iPhone XS, XR or newer. Single camera mode works on any iPhone running iOS 17 or later. Simultaneous 4K on both cameras depends on the model; the app shows what your iPhone can do. The script assistant needs Apple Intelligence (iOS 26). Download TwinPost Cam and stop choosing between the shot and the person taking it.

Screenshots

Reaction Video Maker4 screens
TwinPost Cam4 screens

Verdict

The call

The clearest difference is in-app purchases: Reaction Video Maker at none against TwinPost Cam's 1. TwinPost Cam's advantage is update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TwinPost Cam sells 1 one-off in-app purchase. Reaction Video Maker asks for nothing beyond the download.

UpkeepUpdate frequency

Reaction Video Maker ships an update weekly, TwinPost Cam every 2 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 level
Reaction Video Maker versus TwinPost Cam: the parameters behind the verdict, then further details
ParameterReaction Video MakerTwinPost Cam
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperVivek Kumarnorstride, inc

In-app purchases

None

Reaction Video Maker

No in-app purchases

1 purchases

TwinPost Cam

One-time1
  • TwinPost Cam Pro$34.99

Questions

Is Reaction Video Maker free?
Reaction Video Maker is free to download, with no in-app purchases.
Is TwinPost Cam free?
TwinPost Cam is free to download, with in-app purchases available.
Do Reaction Video Maker or TwinPost Cam have ads?
Neither Reaction Video Maker nor TwinPost Cam shows ads.
Which is updated more often, Reaction Video Maker or TwinPost Cam?
Reaction Video Maker ships an update weekly, and TwinPost Cam every 2 days. Most recently, Reaction Video Maker was updated on October 31, 2026 and TwinPost Cam on October 31, 2026.

Other comparisons