With this app. can you practice the writing letters? The letters used roughly correspond to the letters of 'pen strokes' and 'I pen' from Safe Learning Reading from the publisher 'ZWIJSEN'. In this 2nd version the diphthongs and 2 consonants are discussed one after the other. Some letters may differ from learned letters from another writing method. Writing on a tablet is quite difficult to program. Proper operation depends on several factors. Writing on a tablet with the finger is possible. It is better to use a tablet pen (pencil size).