How to Record Your iPad's or iPhone's Screen (No Jailbreak or Computer Required)
Due to security and privacy concerns, Apple doesn't allow any applications to record your iOS device's screen. If malicious, an app could theoretically continue recording even after you think it's off, allowing it to capture account and password information that you enter on your device.
There is another option, though, and it's called iRec Beta, from TFN, Inc., which allows you to screen record directly from your iPad, iPhone, or iPod touch—without having to jailbreak or use a computer. This app is not available in the iOS App Store, so you'll be sideloading it like we've done before in the past for video game emulators like GBA4iOS and NDS4iOS.
Directly from your iOS device, head over to emu4ios.net and download and install the Emu4iOS Store (Beta). From the Emu4iOS Store, you'll be able to download apps that are not in the official iOS App Store, without having to jailbreak your device.
Once the app is done installing, open Emu4iOS and tap on Trust. Don't worry, nothing bad will happen to your device.
Step 2: Install iRec
Through the Emu4iOS Store, you'll find several apps available, but the one we want here is iRec Beta, the screen recording app you need to download. Tap on iRec Beta and Install it.
A popup will then appear, asking if you you would to install iRec. Select Install to finish the downloading process.
Step 3: Screen Record, Play, & Save
In iRec, go to Record, enter a name for your screen recording, and tap on Start Recording to begin. You'll notice an iRec banner at the top of your screen indicating that screen recording is currently on.
Note: In order to record full-screen games and videos, you'll need to enable Assistive Touch by going to Settings -> General -> Accessibility and turning Assistive Touch on.
When you want to end the recording, go back to iRec and tap on Stop Recording. In order to view and save your videos, go to Recordings.
To save a video to your Camera Roll, tap on the blue information icon and select Yes. From there, you can either watch the video directly from iRec or from your Camera Roll.
Below you can see what the playback looks like for a full-screen game, with the Assistive Touch toggle towards the far-right middle of the screen (since that's the only way to properly record games and videos).
As for issues, the only time I encountered lag was when recording high-def videos on YouTube, but then again, why would you want to record a YouTube video anyways?
Other than that, iRec is very straightforward, simple, and works extremely well for showing off some tips and tricks in apps and games—let us know what you think in the comments below.