Download Facemoji Keyboard from the App Store. Go to Settings > General > Keyboard > Keyboards > Add New Keyboard and select Facemoji. Grant "Full Access" (this is safe; it just allows emoji sharing).
Practice typing (dice) , (skull) , and (shark) in a test conversation. Frequently Asked Questions (FAQ) Q: Can I get Android-style emojis on my iPhone Messenger? A: Yes. Use the Emoji Kitchen concept via the Facemoji keyboard, or simply copy-paste the Android versions from Emojipedia. However, the recipient sees emojis based on their operating system, not yours.
A: Jailbreaking removes security protections. While you could theoretically modify emoji fonts, you will lose warranty, banking apps, and security updates. Not recommended for just emojis.