I typically use TexPad for writing projects, but a collaborator suggested using Overleaf for a joint publication we're working on. I have noticed massive discrepancies between the word count in Overleaf, and the same word count if I download the project and open it locally in TexPad - Overleaf reports about about 7,500 words, while TexPad has about 6,300. I didn't notice this until late in the game, but I've watched the discrepancy grow from about a 500 word difference back when we were under 5,000 words (by Overleaf's standards) to this. I'm inclined to trust TexPad in this scenario, but was wondering if anyone could explain the discrepancy I'm seeing. I otherwise enjoy Overleaf as a collaborative tool, but having to download the project just to check word counts is a hassle, particularly on projects where I have word limits.
Update: After running texcount on my document, I have the following results: ~6000 words according to texcount, ~6500 words according to TexPad, and ~7600 words according to Overleaf.