What are some alternatives?
When comparing Locki and Google Cloud Text-to-Speech, you can also consider the following products
Translatr - Translate words into multiple languages at once
Amazon Polly - Named for a parrot, Amazon Polly is a text-to-speech (TTS) software that makes your text come to life in a natural, authentic way. The software has many lifelike voices, both male and female, and in a variety of languages.
Polyglot - Prep your product for internationalisation 🌍
IBM Watson Text to Speech - Convert written text into natural-sounding audio in a variety of languages and voices.
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Quill - Powerful, API-driven rich text editor