This app was mentioned in 5 comments, with an average of 2.20 upvotes
>Speaking of messy timelines, is there an alternative to the official Tumblr app?
What is your use case? If it's mostly videos and photos try Tumbviewer. There is Tablean it works good for just viewing your feed, but you can't follow/unfollow or search for an account. UI is also a bit dated but imo it works well with tumblr.
Use second app like this Tumbviewer for you pron use. Believe me, it very useful for it.
This one? https://play.google.com/store/apps/details?id=com.nutrition.humblr
The download is broken but for browsing - it's much smoother than the slow and crashing original app