Good. Just like the www.conjugacion.es Exhaustive. Good reference. I love how these guys organize the language. They’ve also provided the ability to switch between “other forms” (i.e. Active Voice, Passive Voice, Pronominal Format, etc). That’s a nice feature that I would have never thought about.
Exercise module needs improvement. Maybe take the best from other apps like Spanish ConjuMaster, because in this version, the exercise module is lacking. You need to be able to cut out Person and Number of verbs (i.e. Yo, Tú, Él, Nosotros, Vosotros, Ellos), but for now you can’t. The exercise is also too verbose (i.e. 3rd person - singular - feminine - indicative condicional perfecto). Though this is great for grammatical organization, it is just not concise and memorable for practical purposes. It could just say "ella - conditional perfecto” and we could conjugate any verb from there and learn conjugation more quickly.
I wish it had only been 99¢, but it was worth a ton more when I think about the value of the offline usage.