Note: If you don't have a developer certificate, you can use your free Apple account to sign and install Instagram Unicorn IPA and use it for up to 7 days before it needs to be re-signed. What's more, you can sideload the IPA also with TrollStore on iOS 14 – iOS 15.4.1.
When you are running a jailbroken environment, you can install the Instagram TikTok Unicorn tweak on top of the TikTok app downloaded from the App Store. Add BigBoss repository to your package manager and install the all-in-one TikTok tweak for iOS. Note that the tweak may not work on XinaA15, so if you're using this jailbreak, you'll need to sideload the IPA file instead.
To install TikTok Unicorn with Cydia, follow those steps:
http://apt.thebigboss.org/repofiles/cydia/
Alternatively, please use the quick links available below to add the repository to your favorite package manager (Cydia, Sileo, Installer, Zebra) with just one tap.