Manta Comics is a webcomic-reading smartphone app created to expand into the North American webtoon market. Manta is part of RIDI Corporation. Refer to Ridibooks for webtoons and mangas originally published in South Korea.
Manta is a monthly subscription service, but they do offer some series for free on timers. They host both their own translated webtoons and other webtoons and mangas from other English publishers.
Manta originally did not have a mature section. While some R19 titles are now available on the platform, a majority are still censored.
This includes:
The Shape of Sympathy
The Dangerous Convenience Store*
Seducing the Jerk
Salvator
Flipturn
Off Stage
Taming the Tyrant
Swapping*
Prequel Romance
Love Jinx*
Flowers Find a Way to Bloom
Bound
Sexless (AM)
- = R19 version is available on another platform.