CharacterWorld gives you unicode characters to compose text.
Unicode :
✓ Currency
✓ Punctuation
✓ Miscellaneous
✓ Geometrical
✓ Arrows
✓ Mathematical
✓ Numbers
✓ Braille
✓ Enclosed
✓ Letterlike
✓ Technical
Features :
✓ Send SMS
✓ Send to KakaoTalk
✓ Copy
✓ Save text to favorite
Caution :
Except IOS, characters may not display properly. It may not contain characters.