- The app is not responsive. With my phone, I cant see some of its text. - I tried to register 4 times. Each time failed. It is obligatory to introduce your travel document type and number, but you can only use a Spanish ID card or a foreign passport... I use my ID card to travel around the EU, and its not Spanish. So the app just refuses to register me saying the number is invalid! If you skip all the registration steps and go directly to the ID type and number, the app blocks completely and you have to restart your phone to make it work again. Its just a lost of time. Dont download it unless they fix it.