One account allows you to freely view and edit documents on your iOS device.
You can view and edit MS Office, HWP, and PDF files on your iPhone and iPad without a separate usage restriction with one account that has completed payment.
It supports documents with various formats from MS Office (Word, Sheet, Slide) to HWP, ODF, TXT, CSV, and PDF.
You can convert finished documents in other formats into PDF documents and save them.
You can take notes directly on PDF documents, making it easy to manage ideas on the go.
It provides an optimal interface, such as convenient-to-use editing UI, viewer functions, etc., on iPhone and iPad by reproducing the advantages of PC office as much as possible.