Dual-aspect vs dual-camera: what 'dual recording' really means on iPhone

"Dual recording" is an overloaded phrase. It can mean front+back multicam (two lenses into one file), dual-aspect output (one lens, two cropped files), or two-device recording (two phones). These solve completely different problems, and choosing the wrong one wastes your time. PostReady Dual Recorder Camera is squarely in the dual-aspect lane: one lens, one take, two cropped files (9:16 + 16:9). It does not do front+back/multicam.

The three things people mean by "dual"

1. Front + back (multicam) recording

Two lenses at the same time, usually your face from the front camera and the scene from the back, composited into one file, often picture-in-picture. This is what "dual camera" most commonly implies. It's the tool for reaction videos and "me + what I'm looking at" content. PostReady does not do this.

2. Dual-aspect (two crops) output, this is PostReady

One lens records one take, and the app writes two cropped files of that same frame: a portrait 9:16 and a landscape 16:9. The point isn't two angles, it's the same shot, framed for two destinations, so you can cross-post without reshooting or re-cropping. This is the lane PostReady lives in.

3. Two-device recording

Two separate phones (or a phone plus a camera) filming the same scene from two positions, synced in editing later. That's a multi-angle production technique, not an app feature. Not what PostReady does either.

Side-by-side

	Front+back / multicam	Dual-aspect (PostReady)	Two devices
Lenses used at once	2	1	2 (separate devices)
Output	1 composited file (often PIP)	2 cropped files (9:16 + 16:9)	2 files, synced in edit
Solves	reaction / face + scene	cross-posting one shot to two formats	multi-angle coverage
PostReady does this?	No	Yes	No

Where PostReady honestly fits, and where it doesn't

PostReady is a dual-aspect recorder. Its whole reason to exist is: you shot a good take, and now you need it both vertical and wide without losing the moment. It records from one lens at a time. You can switch between the front and back camera, but you cannot record both at once, and there is no picture-in-picture or reaction mode. That capability was never the product, "dual" here has always meant two aspect ratios.

So if you came here wanting front+back reaction recording, PostReady is the wrong tool and I'd rather say so plainly. If you want one take to become two correctly-framed files for two platforms, that's exactly what it does. For the literal how-to, see record portrait and landscape at once.

A quick way to pick

• Want your face and the scene in the same video? You want multicam / front+back, not PostReady.
• Want the same shot ready for both a vertical feed and a widescreen destination? You want dual-aspect, that's PostReady.
• Want two camera angles of one event? You want two devices and an editor.

This page describes PostReady's capability directly; the multicam and two-device definitions are general videography concepts, not PostReady features.

Get it

If the dual-aspect lane is what you need, download PostReady Dual Recorder Camera on the App Store.