I second Edgars recommendation of the IAP app, its available in apple & android in the play store / app store.
If I remember correctly it costs a dollar or two to buy the app, which goes to IAP..you can then put it on as many devices as you'd like.. It has very usefull information on a ton of pen kits from many vendors, allows you to cross reference bushings, tubes..etc if you want.
And Welcome to the forum aswell !