No, but you are free to preview lost data with the trial version, and then you can decide whether to buy the paid version to recover and save the lost data. The majority of tools in the market only support free preview or limited data recovery.
It depends on whether the data is overwritten or not. If they are not overwritten, you still have a chance to get them back. Try the free trial version of UltData for iOS firstly to see if it finds your lost files.
Yes, you can recover lost messages from iTunes file, or recover deleted text messages on iPhone without backup using a professional iPhone data recover program - UltData for iPhone data recovery if the data isn't overwritten.
It currently doesn't support this feature but you can look forward to the further update. In fact, all the iPhone data recovery programs in the market are not able to access data in iCloud now because Apple changed the encryption methods for iCloud backups and for users who set up two-step verification.
Of course, Yes. With UltData iPhone Data Recovery, you can easily recover deleted data (chats, photos, videos) from WhatsApp, Viber, WeChat, Kik, LINE, etc.