Existing iOS app improvements

Avg Bid (USD)
Project Budget (USD)
$750 - $1500

Project Description:
Polish the UI.
PDF library added to exisiting iOS app for supplemental doc creation and form completion.
Add the capability for the app to be portrait or landscape.
Add Dropbox cache / offline access. Need to be able to upload of files / navigate in Dropbox with no data coverage. My field staff travels extensively.
New notes prepared and sent to show up under existing notes on notes tab.
Auto generation of a pic folder on multiple pic uploads under the pics tab the same way the new inspection sharing is set.

I've had feedback on older devices (even the 4s) of the app freezing on the processing portion. I.E. - On a 4s and uploading 30 pics to Dropbox, after selecting upload, the screen stays the same and the pics never process / upload. Hopefully the Dropbox cashe / offline access, upload will correct this.
If not, I need recommendations to remidy.

Attached, find our iOS app, our Android version of the app and the source code for the iOS app that needs the improvements above.

Skills required:
iPad, iPhone
About the employer:
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