I've been waiting for this app, till now I made it myself.
• Create your memo and save it on cloud. (Push)
• Read it from anywhere, with the memo id. (Pull)
• Secure it by assigning expiration time and/or access countdown.
• Share it by id or full link. e.g. MeMo
• Share a memo of link with "-" at the end for quick access. e.g. https://pullsh.me/LiNk-
• Memo is access by id, take your own risk by putting sensitive contents. Full EULA
• Code is open-sourced, check it or contact me from GitHub
• Thank you and enjoy!