I use TripIt Pro. Can't recommend it enough.
Different purpose to CMT though, it only knows what you tell it - but then once it comes time to day of departure you'll get notifications of gates, delays, baggage carousel numbers etc - especially good when you're flying multiple airlines and you don't have the individual apps (or they're not very good).
I've been using it since 2013 and it's so handy having a complete record of every trip I've done, all the hotels etc. When someone asks for hotel recommendations and you can't remember where you stayed at a certain city, it's easy to look it up.
The free version is probably good enough, but the amount I spend on travel, the $49 or so is well worth it for the extra features.
To be honest I found CMT pretty useless in the end for anything other than - well - checking my trip (ticket info). I heard others on AFF using it as a travel management app and that would just not work for me - can't add non-Amadeus airlines (eg AA), can't add hotels etc.
It sounds like CMT is going down that road, but I don't think the world needs another one.