What's your take?

I just had a client reach out to create a pretty basic data collection and processing app to use during site visits. But there are so many of these apps out there already. Despite that, I haven't really seen any engineer genuinely use one of these apps.

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Maybe I'm just not in the right crowds or maybe all of these apps just don't work? Maybe they're too difficult to find, or their point doesn't come across, or is cumbersome to use, or you get nothing useful out of it.