I haven't seen another iOS app that will search multiple Word files at once and show you full results, but PDFSearch does. Need to see if a word is spelled consistently across different Word files? Start typing the word in and it will show you a list of words across all your chosen files that start with those letters. Now you can easily see if you have a misspelled version of that word. Choose the one you want and arrow through each instance to see them in the context of the book. It is extremely fast, thorough, and stable. I've been using for months with no problems.
My copyeditor wishlist would be:
1. Ability to find hyphenated terms. Currently if I type in counter, it won't show counter-intelligence in the list (but if I hit find, it will find it). Would be nice to see it in the list to find discrepancies at a glance.
2. Ability to search for punctuation, to help me find punctuation issues.
3. Ability to sort results in order of alphabetical files (if files are named ch 1, ch 2, etc., to find results in that order) instead of the order PDFSearch chooses. (I know PDFSearch chooses the order based on AI and how relevant the term is, which is really cool, but I just need a regular sequential order.) That said, it's still very clear which file each result is located.
4. Ability to specify "only search this EXACT spelling." For instance, I typed in "prophec" in hopes of finding "prophecy" and "prophecies" but it found several instances of "prophet," which I didn't want.
Overall, very happy I found PDFSearch. Before this, I could only do these multiple-file searches on my computer. (Other iOS apps such as the built-in Dropbox search will show you a list of results, but then you have to open each file and search again to see the full context, which is a pain.) Thanks for creating this helpful app!