Free Speech to Text Service for developers

One of our teacher share that 

From Web First, we moved to Mobile First, now the age of Voice First Apps is almost here. Get Ready.

— Zia U. Khan (@ziakhan) September 25, 2017

Indeed tech giants like Apple, Microsoft etc have moved for voice first apps. Now,  as a developer did you consider implementing voice based interaction for your app? No? Why ? You should consider it right now! And For this, you first need to understand that how to convert user words to an action? But wait, actually you  first required to understand that how to convert user voice to text and then text to an action.

Remember the sequence:

"user voice to text then, text to an action".

And in this post, we are going to deal with the first part i.e., user voice to text. I am not an AI expert nor I have designed any algorithm to share with you. We are going to share with you a cloud services for this purpose.
If I ask you to suggest me some speech to text service or API for my project, then, What will you do? Maybe you will first google and answer or you will refer Google Speech API or IBM Watson Speech to Text or Bing Speech Service etc etc.  That is fine, but theses services are Free?

Maybe to some extent (like free trail or limited free access) but they are not free for production work where you have to handle tons of requests.!

What if I tell you about a surprising service that will provide Speech to Text without any cost? Sounds amazing! but wait, first we look the top speech to text services that are proudly present by google search engine.

Watson Speech to Text - IBM

IBM provide you one month free trail and its basic pricing model given below:

1. Usage: < 250K minutes a month: $.02 per audio minutes transmitted
2. Any usage > 250K to 500K minutes a month: $.015 per audio minutes transmitted
3. Any usage > 501K to 1MM minutes a month: $.0125 per audio minutes transmitted
4. Any usage > 1MM minutes a month: $.01 per audio minutes transmitted