Write an article based on this summary:

Open the Reddit app on your phone or tablet. Tap the New Post button. Tap VIDEO. Tap the Choose a community menu. Select a subreddit to post to. Select or record a video. Enter a title. Tap the POST button.
The app has a white icon containing an orange circle with a white robot inside. There are many mobile apps that allow you to post to Reddit. This method covers Reddit's official app that you can download from the App Store {"smallUrl":"https:\/\/www.wikihow.com\/images\/5\/55\/Iphoneappstoreicon.png","bigUrl":"\/images\/thumb\/5\/55\/Iphoneappstoreicon.png\/30px-Iphoneappstoreicon.png","smallWidth":460,"smallHeight":460,"bigWidth":"30","bigHeight":"30","licensing":"<div class="mw-parser-output"><p>I edited this screenshot of an iOS icon.
<\/p><p>License: <a rel="nofollow" class="external text" href="http:\/\/en.wikipedia.org\/wiki\/Fair_use">Fair Use<\/a><br>
<\/p><\/div>"} (iPhone/iPad) or from the Google Play Store {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/1e\/Androidgoogleplay.png","bigUrl":"\/images\/thumb\/1\/1e\/Androidgoogleplay.png\/26px-Androidgoogleplay.png","smallWidth":460,"smallHeight":531,"bigWidth":"26","bigHeight":"30","licensing":"<div class="mw-parser-output"><p>I edited this screenshot of an Android icon
<\/p><p>License: <a rel="nofollow" class="external text" href="http:\/\/en.wikipedia.org\/wiki\/Fair_use">Fair Use<\/a><br>
<\/p><\/div>"} (Android). It's the pencil inside a circle at the bottom-center part of the screen. A list of posting options will appear. It's the third icon from the left. This opens the "Video Post" screen. It's at the top of the post. This opens a list of your recently visited and subscribed subreddits. If you don't see the one you want, start typing its name into the "Search" field at the top of the screen. Some subreddits do not allow video posts. If you see a message that says the selected forum doesn't permit video posts, you won't be able to share your video on that forum. You can select a video from your gallery or record a new video using the Reddit app's camera. Your video should be 1GB or less, and no more than 15 minutes long. To post a video from your phone or tablet, tap LIBRARY, select your video, select a cover image, and then tap Choose. To record a new video, tap CAMERA, record your video, select a cover image, and then tap Use Video. Tap the An interesting title field at the top of the post to spring open the keyboard, then type the title of your post. It's near the top-right corner. This posts your video to the selected subreddit.