The on-screen keyboard
Played with your finger: the tablet is enough, even on the go.
A domain of the path
Middle C first, then the five notes up to G, the octave, notes beyond the staff, leaps, sharps and flats, all the way to the key signature. The tutorials explain, the exercises get you reading as you play.
Free: the treble clef tutorials and the first chapter, around middle C.

What you'll learn
The treble clef curls around the second line of the staff: the note sitting on that line is a G. Every other note is read from there, line by line and space by space.
Okyla starts from middle C, the C in the middle of the keyboard, sitting on a little line below the staff. Then you climb up to G, play the octave up to the next C, step outside the staff, read leaps, and finish with sharps, flats and the key signature.
The tutorials show each landmark on the staff and on the keyboard, and most of them ask you to play. The exercises then get you reading real little phrases.
The exercises
In the order the app offers them.
Interactive tutorials
Read the three signs and the bar rule
Read a key signature and keep it in mind
Each exercise comes in several sequences: “Redo” the same one, or “New sequence” to play another.
What to play on
In Guided mode, the piano waits for you if you slip; in Performance, you play in tempo.
Played with your finger: the tablet is enough, even on the go.
Put the tablet on the music stand: Okyla listens through the microphone, and the sound never leaves the device.
Plugged in over USB, every note is read the moment you play it.
Find G: it's the note on the second line, the one the clef curls around. On the lines, from bottom to top: E, G, B, D, F. In the spaces: F, A, C, E. Middle C sits just below the staff, on a small added line.
No. The treble clef reading exercises can also be played with your finger, on the on-screen keyboard. With a piano, Okyla listens through the microphone; with a digital keyboard plugged in over USB, every note is read the moment you play it.
The treble clef tutorials and the first chapter, “Around middle C”, with its exercises and their new sequences. The rest of the domain needs the subscription.
Start with keyboard discovery, which is completely free: the landmarks, then the move from keyboard to staff.
The path