Amazon Polly Review: Features, Pros And Cons

Amazon Polly is a cloud-based text-to-speech service developed by Amazon Web Services (AWS). Offering a wide range of realistic voices and languages, Amazon Polly is designed to enhance user engagement in applications by adding spoken output capabilities.

In this article, we will conduct a detailed review of Amazon Polly, focusing on its features; we’ll also weigh the pros and cons of using Amazon Polly, providing insights into its performance, ease of use, and suitability for different applications.

Overview Of Amazon Polly

Amazon Polly is a cloud service by Amazon Web Services (AWS) that turns text into lifelike speech. It’s a text-to-speech (TTS) service that uses advanced deep-learning technologies to create natural-sounding voices.

With Amazon Polly, you can make applications, like newsreaders or talking avatars, that can talk. Polly offers a wide range of voices in different languages, so you can choose the one that fits your project best.

It’s not just for English; Polly speaks many languages! This service is easy to use and integrates well with other AWS services. It’s great for developers who want to add voice features to their apps or websites.

Key Features Of Amazon Polly

Speech Marks and SSML Support

Amazon Polly has features that let you control how the speech sounds. It uses something called SSML, which stands for Speech Synthesis Markup Language. This lets you change the pitch, volume, speed, and how words are pronounced.

By using these features, you can make the voice sound more natural and expressive. It’s like fine-tuning the voice to make it sound the way you want, which is helpful for making a speech that sounds more like a real person.

Integration with AWS Services

Amazon Polly, being a part of the AWS ecosystem, easily connects with other AWS services. This integration makes Polly more powerful. For example, you can use Polly with AWS Lambda for automated tasks or with S3 for storing audio files.

This means you can do more with Polly, like creating smarter apps or managing data better. It’s great for people who already use AWS services and want to add voice to their projects.

Low Latency

Amazon Polly is built to work fast, meaning it creates audio quickly. When you use Polly to turn text into speech, it doesn’t take long to get the audio. This is very helpful if you need to make voiceovers or any audio content quickly.

Whether you’re making videos, apps, or any other project, Polly’s ability to generate speech fast is a big plus. It means you can work more efficiently, saving time and effort.


Amazon Polly, as a cloud service, offers seamless scalability. Whether you’re working on small projects or large-scale deployments, Polly adjusts effortlessly to meet your needs.

This means you will be able to handle the size and complexity of your task. The flexibility in scaling ensures a smooth experience, allowing users to harness Polly’s capabilities regardless of project size.


Amazon Polly operates on a pay-as-you-go model, ensuring users are billed solely for the characters transformed into speech. With transparent pricing and no upfront commitments, Amazon Polly provides an affordable and scalable solution for converting text into lifelike speech.

Pros And Cons


  • Natural-Sounding Voices
  • Customizable Speech Output
  • Integration Capabilities
  • SSML Support


  • Learning Curve
  • Limited Emotional Rang
  • Limited Custom Voice Creation
  • Cost Concerns for High Usage


Alternative To Amazon Polly


TextoSpeech is an online tool that uses smart computer stuff to make sounds that sound like real people. It has over 200 voices in more than 50 languages. It’s great for anyone who wants to make really good voiceovers easily.

You don’t need to download TextoSpeech; you can use it on the internet. You can make voices that sound real using just your computer’s internet browser.

TextoSpeech is easy to use; you can change how fast it talks, the mood, and how it says things to fit what you need.

TextoSpeech Features:

  • Over 200 voices for a versatile auditory experience.
  • Control the voice speed along with the pitch of the voice.
  • There’s a Word Emphasis feature to make certain words stand out.
  • Over 50+ languages are available to cater to a wide user base.
  • Multiple accents are available.
  • You can add emotions like happiness, sadness, or excitement to the voice.
  • An Affiliate Program is available, offering up to a 50% commission rate.


Is Amazon Polly suitable for different project sizes?

Yes, Amazon Polly is scalable, catering to both individual creators and large organizations. Its versatility makes it adaptable to diverse project sizes and specific needs, ensuring a seamless experience for users of varying scopes.

Can Amazon Polly be integrated easily into applications or websites?

Absolutely. Amazon Polly provides simple APIs and SDKs, facilitating easy integration into applications, websites, or any platform where TTS functionality is desired. 

What is Amazon Polly, and how does it relate to Text-to-Speech (TTS)?

Amazon Polly is a TTS service by Amazon Web Services. It converts text into lifelike speech, enhancing applications with natural-sounding voices. Polly is a cloud-based solution, making it accessible and efficient for various projects.


Amazon Polly offers a range of features for text-to-speech needs, with a variety of voices and languages. It’s particularly useful for developers and businesses.

Overall, Amazon Polly is a strong choice for those needing reliable and clear text-to-speech conversion but consider its pros and cons carefully for your specific requirements. It’s a valuable tool for many, but not a one-size-fits-all solution.