ios - Exporting large audio files -

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i created audio recorder app saves audio files in m4a format. decided add export feature allow users email , text audio recordings. works nicely when audio files no bigger 20mb. however, audio file above 20mb fail export. best way export files out of app? thinking google drive or dropbox, user have have registered account. there services can upload file , receive link can emailed user?

there plenty of services that. dropbox example. here overview: http://alternativeto.net/software/dropbox/


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