You could track your collection by single booklet, by year o you could search a specific booklet by date, year or title.
You can find all booklet from the first one, "Il re del terrore", until the last one published.
At last you could view a graphic draw of your collection.
In this app you can track your collection, add a note for each booklet, filter the missed items and show the cover of every booklet since november 1962 to now.
Also you can create a backup of your collection for reloading when needed.