For sure, it’s worth letting people know if they aren’t aware. It’s been a while since I installed boost, but I remember there being very clear messages about the ads and tracking, explaining it was to compensate the developer for the time he spent converting the reddit client to lemmy, and with the option of a one time fee to completely avoid trackers and ads.
While I love it when things are truly FOSS, I understand that I pay my barber and my plumber for their time, and I don’t have a problem paying a one-off fee to buy software I want. What is exploitative are many subscription models, and all software that takes your money AND still monetises you (looking at you microsoft).
It’s good to make people aware of genuinely free alternatives. But I used jerboa, voyager and a few other lemmy clients and I’m much happier with Boost and it was worth every cent.
You’re completely free to support the apps and developers you prefer, but I don’t think I understand what you mean by “keep misleading more unaware people”? The play store listing for Boost for Lemmy says “Contains ads.” and “In-app purchases” in multiple places (for one, it’s the the third line after the name and developer). Its really not misleading anyone. Do you have examples of Boost or the developer claiming it is ad free or FOSS? Or do you mean something else?
I don’t approve of predatory practices, so if you can provide any evidence I would be keen to change my 5 star review and stop using the app.