An update for simple audiobook player app iphone & ipad (example - [url removed, login to view]) is needed, as following:
- add optional (enabled/disabled) in-app purchases of 2 types:
* 1st chapter free, each other chapter should be purchased
* 1st chapter free, one purchase for the rest of chapters is required
- add pop-up screen w/ invitation to rank the app.
Note: all other existing features should be preserved.
Requirements for freelancers (pls apply ONLY IF you fit them):
1) prior development + examples [must]
2) development time commitment for 1st version < 5 days
3) bug updates < 2 days
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7 freelancer đang chào giá trung bình $571 cho công việc này
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