Tabletop has received an update which has added the "Magic Mic". This is a free recording device for all Tabletop users. Also in this update is a T-Pain effect from iZotope, for $5.99 as an In-App Purchase. It is unclear if this is included for people who bought the All You Can Eat bundle option, that was added to the IAP Store in May.
iZotop is well regarded in professional circles for their Ozone and RX mastering tools. Last year they released The T-Pain Effect plugin for PC/Mac. Now a full 6 years after T-Pain's gimmick has peaked, you too can slather auto-tune all over your tracks!