When the app first came out, you could only create short videos that lasted up to 15 seconds. Now, you can choose between sticking to this length or recording a one-minute video. But there’s a trick to overrule this: the rules only apply to videos created using the TikTok app itself. If you record a video using another app, you can upload it to your TikTok profile, even if it's longer than 60 seconds. Note that the file still can't be bigger than 287.6 MB for iOS devices and 72 MB for Android phones.