Twitter’s API issues have frustrated developers in each of Twitter’s new API access tiers. Those with Basic or Pro plans — paying $100 and $5000 a month for API access, respectively — have experienced unannounced changes to their plans, numerous bugs, and often receive zero customer support. And developers shelling out for Twitter’s Enterprise API Plan, which starts at $42,000 per month, are experiencing sudden outages and disappointing service considering the money they’re paying.
Much like Reddit, Twitter’s first mobile apps were developed by third parties. The term “tweet” even originated with one of those apps.