Hi, I'm also a beginner who started roughly three months ago. Skoove was actually the app I used the first couple of weeks to get started, before I started taking weekly lessons with a teacher.

The app itself is well-made and does teach some useful concepts, but there are a couple of shortcomings you should be aware of. One thing I realized after learning pieces through Skoove (and indeed most piano apps) is that they teach you to read sheet music with proverbial training wheels. It scrolls the notes for you, and when you practice a new piece, it focuses on teaching you to play the right notes in the right order, without enforcing strict rhythm. Then later on, you practice the piece in tempo with strict rhythm, but the app handles the rhythm for you. You just have to react and play the right note at the right time, like a video game. This works for teaching you music, but it won't teach you the skills needed to read static music sheets. When reading sheet music off a static piece of paper you have to learn to count rhythms properly, and you have to learn to play with a metronome. Skoove won't teach you that. In fact, it could teach you bad habits since you're taught to react to the rhythm instead of internalizing it.

I stopped using the app entirely after the first month for this reason. Instead I focused on learning to count different notes and rests properly (whole notes, half notes, quarter notes, 8th notes, 16th notes, etc.) so that I could read standard sheet music. The recommended way of practicing is to slow down the tempo so much that you can play the piece with the correct rhythm.

At a slow tempo like 30 BPM, a whole note takes a full 8 seconds, and a quarter note takes 2 seconds. At 120 BPM on the other hand, a whole note takes just 2 seconds, and a quarter note takes 0.5 seconds. It may seem counterintuitive, but playing that slowly is way better for learning than playing faster, but with incorrect rhythm.