אײַפֿאָן און אײַפּעד פֿאַר טיפּירן ייִדיש
iPhone & iPad for Typing Yiddish

Read: How to Choose a Virtual Yiddish Keyboard
Then, please carefully read the below descriptions.

ברירות
Choices
מעלות
Features
באַטראַכטונגען
Considerations
װוּ
Where
Standard iPhone Yiddish / Hebrew KeyboardYou already have it! Comes with iPhone. Long press to get special Yiddish letters — (e.g., press alef to find pasekh alef and komets alef, etc.)On iPhone, go to Settings / General / Keyboard and add the “Hebrew” keyboard.How to
YiddishKDesigned for Yiddish.
Help Info Online.
by Larry Kay
No-Shift and No Long-Press needed for full YIVO orthography. There's an extra row of Yiddish characters at the top!
iOS App Store
Swiftkey – -with Yiddish InstalledMulti-Language. Swipe Space Bar to toggle between installed languages.Long press to get special Yiddish letters — (e.g., press alef to find pasekh alef and komets alef, etc.) Swipe-letters-to-type feature for some languages (but not Yiddish).iOS App Store
Ziggy’s Yiddish Pasekh in KeymanScreenshots of layout here. (This is not based on transliteration like the Desktop versions with the same name.) Tap Shift for special Yiddish characters.Must install (free) Keyman. Then, select Yiddish Pasekh Keyboard (not Yiddish 2k). If it shows 2 different “languages” for Yiddish, either of them is fine, no difference.Keyman
Ideal Yiddishby Ze’ev ClementsonMust install (free) Keyman first. This keyboard can then be imported into Keyman from the designer’s website.Ideal
Various – Copy & PasteNo download or installation needed.Check out the numerous options noted as for “Any” operating system on this site under “Other Systems.” Use any web browser to type Yiddish text; then copy and paste the resulting text anywhere (e.g., email, text messages, word processing documents, etc.) Great for traveling and using someone else’s device which may not have your otherwise favorite virtual keyboard installed. Or use these at home, too.Browser based