Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
Twitter Threads - Twitter introduces a built-in Tweetstorm feature ⚡️
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
Thread Reader - A bot 🤖 that unrolls Twitter 🐣 threads for you 🤓
TwitLonger - TwitLonger is the easy way to post more than 140 characters to Twitter
5Tweets.com - Type a long tweet and 5Tweets will rewrite it into multiple tweets with a tweet count.