Free App: celtx script [iOS]

* The #1 rated scriptwriting app in the App Store

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With Script you can write properly formatted scripts on your iPhone or iPad, anywhere, anytime.
Script also syncs with your online Celtx studio - so you can backup all your scripts, and work together with your team to plan all your videos and movies.
Features
* Screenplay, AV, Stageplay, Audio Play, and Comic formats.
* Free online backups - protecting your writing from damage or loss of your device.
* Add comments to make script notes to yourself or discuss scripts with partners.