Jetpack App - The fastest way to copy your hashtags for Instagram
Twidy App - Tinder for Twitter - Tidy up and declutter your timeline
Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
Vanilla Timeline for Twitter - Browse Twitter without the some-user-liked tweet clutter.
Hashtag Suggestions for Instagram - Find the best hashtags for every photo
CleanTimeline - Your Twitter timeline without any distractions or ads