I use tripit and find it very good. Just forward your confirmation emails to it and it builds the trip itinerary for you. Only very occasionally do you need to enter someting manually. App is good and so is web access. Holds all your trip history almost indefinitely. You can share details with fellow travellers, PAs or family, all at different access levels. Free version is fine for me. I had a free trial of the premium version but it didn't add a lot for me, although that was during covid ...