Open the App Store.
Tap Search at the bottom-right corner.
Type readdle into the search bar at the top of the screen and tap Search.
Tap GET or the cloud icon next to "Documents by Readdle." It's the gray "D" icon with yellow and green accents.
Follow the on-screen instructions.
//\\2. Open YouTube on your iPhone or iPad. It's the white icon with a red rectangle and white triangle inside.
//\\3. Go to the video you want to download. Tap the magnifying glass at the top of the screen to search, or tap Library at the bottom-right corner to browse videos you've saved. Once you get to the video, it will start playing immediately.
//\\4. Tap Share. It's the icon with an arrow below the video's title. Several sharing icons will appear.
//\\5. Tap Copy link. It's the gray icon with two overlapping rectangles in the bottom row of icons. This copies the video's link to your clipboard.
//\\6. Open the Documents app. It's the gray "D" icon with yellow and green accents. It should now occupy the last icon position on your home screen.
Since it's your first time using the app, tap Continue when prompted, and then proceed through the screens until you reach the screen that says "Documents" at the top.
//\\7. Tap the blue compass icon. It's at the bottom-right corner of the "Documents" screen. This opens a web browser.
//\\8. Go to https://keepvid.pro in the browser. You can do this by typing the URL into the "Go to this address" bar at the top of the screen and then tapping Go.
//\\9. Tap the "Enter Link" field. This springs open your keyboard.
//\\10. Tap and hold the "Enter Link" field. After a second or so, the "Select All" and "Paste" options will appear.
//\\11. Tap Paste. The YouTube video link you copied will appear in the blank.
//\\12. Tap the blue Download Now button. Keepvid will locate the video and provide some download options below.
//\\13. Scroll down and tap Best Download. It's the blue button below the video's duration. The "Save File" screen will appear.
If you want a smaller file, you can tap the Download Other Formats button below instead and choose something else.
//\\14. Rename the file (optional) and tap Done. This downloads the video to your iPhone or iPad. Once the video is downloaded, you'll be returned to the main Documents by Readdle screen.
//\\15. Add the Readdle folder to the Files app. If you add Readdle to your Files app it'll be easy for you to access your downloaded videos. Here's how:
Open the Files app (the blue folder) on your home screen. It may be buried in a folder.
Tap Browse at the bottom.
Tap Edit at the top-right corner.
Slide the "Documents" switch to the On (green) position.
Tap Done at the top-right corner.
You can now use the Files app to access the videos you download with Documents by Readdle.
//\\16. Watch the downloaded video. When you're ready to watch your video(s), follow these steps:
Tap the video to watch it.