Why your support matters
My first app, Valia, is free for everyone, and I'd like to keep it that way, as well as extend this to whatever else I build in the future. However, free for you doesn't mean free to run. There's backend infrastructure keeping accounts, app features, and data working. There are domains for this site and each app, and developer accounts that are required just to publish in the relevant stores, not to mention the various tools and services that go into actually building and maintaining everything.
Right now, most of that runs on free or low-cost tiers. But free tiers have limits, and as more people use my apps, some of that usage will grow past the free tier limits and force me into paid subscriptions. Your support goes toward covering that gap to help keep my expenses affordable and the apps free for the people using them.
If you can spare even a small amount, every little bit helps. If you can't, using and sharing what I build still means a lot.