When comparing Twitter (Official) vs Twidere, the Slant community recommends Twidere for most people. In the question“What are the best Twitter clients for Android?” Twidere is ranked 1st while Twitter (Official) is ranked 5th. The most important reason people chose Twidere is:
The source code is available under the GPLv3.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Gets the latest API updates
Twitter is slightly infamous for making changes to the API. At least with the official client, you stay ahead of this.
Pro Clean & Functional UI design
Pro Officially sponsored
So you know it will always be supported and won't be randomly shut down.
Pro App experience similar to web experience
If you're switching from using the web client, this app will be quickly understandable to you.
Pro Inline photos
Pro Multiple account support
Allows easy switching of accounts withing the app.
Pro Supports login verification
The official Twitter app is perhaps the only app to support two factor authentication or login verification, thus providing a necessary additional layer of security to your Twitter accounts
Pro Photo editing tools
The app has filters, automatic level balancing and ability to crop built in the app.
Pro Free software/open source
The source code is available under the GPLv3.
Pro Modern UI
Pro Very customizable
The user can add and arrange his/her own tabs with specific views and filters.
Pro Supports custom API
It supports API customization, so you don't need to worry about API limits at all.
Pro Works as expected
Pro Handles Mastodon, Fanfou and StatusNet too
You need only one app to read Twitter and Mastodon.
Cons
Con Forced inside Twitter's annoying ecosystem
Con "In case you missed" feature, showing tweets other users liked in your timeline
Features (can't be turned off) that disrupt chronological timeline and/or show sames tweets repeatedly.
Con Promoted tweets
AKA ads.
Con Too many permissions
Asking a lot more permissions than most third party apps.
Con No widget
Recently took away the widget for whatever reason and that's not cool.
Con Pretty heavy
If you're on a "available-space" budget, the official twitter app is pretty bulky and you'll be better-off with a more lightweight alternative.
Con Lack of ability to view tweets in a proper timeline
Con Terrible cellular data management
If you have a limited data plan for your phone, don't be surprised if you find a whopping 800 MB consumption at the end of the month. The app really, really wants to download absolutely everything, even if you don't want to see or play anything.
Con Avoid, not userfriendly
Merges multiple accounts into one timeline and there is no way to get around that. This is ridiculous. only recommended if you have one account. Seeing one timeline is impossible. The app appears to be a copycat of Plume minus the ads in many ways. The app is missing the translate feature. The Trends feature doesn't work. Interactions missing features too. It's not intuitive as well, rather complicated. So very few downloads.