My dog walking business needed a way to schedule clients. I wanted an app to keep track of bookings and send reminders. I came across [https://s-pro.io/](https://s-pro.io/), which talks about custom apps. Their site lists features like client portals, push notifications, and calendar syncs. They give clear pricing, a trial version, and fast responses to questions. The app they made is super simple and keeps my days organized.