oui j'utilise le même compte mais voici ce qu'ils disent sur le site de l'appli (qui s'appelle 2do).
2Do will not be able to detect your previous purchase. This is a serious limitation in Android apps in general, where it gives developers no indication of when the app was originally purchased. There is little we can do to rectify this. This limitation does not apply to in-app purchases (i.e. buying the Pro upgrade), which will be available / redeemable for free on all your devices. The only thing we can offer you is that if you email beta[at]2doapp[dot]com with a purchase receipt (from Google Play) that is no older than 2 years (Jan 2014) and not newer than Oct 30 2016, we'll provide you with a redeemable code and that will then work across devices and re-installs. The reason we can't provide for older purchases is due to limits imposed on promo codes and so not everyone can be entertained.
en fait je me demandais s'il n'y avait pas un moyen en faisant un genre de copie système de mon téléphone actuel pour le mettre dans le nouveau, ou un endroit, ou un fichier à réencoder, une bidouille quoi...