NaturalReader vs Altered: Top AI Voice Generator in 2025?

by | Last updated Feb 27, 2025

Winner
Altered logo
8.0
  • Voice Cloning
  • Voice Training
  • Voice Morphing
  • Text-to-Speech
  • Voice Editor
  • Free plan available
  • Paid Plans from $1/month
Runner Up
naturalreader
7.0
naturalreader vs altered

Choosing the right text-to-speech (TTS) tool can be a real headache.

You need natural-sounding voices, easy-to-use features, and a price that doesn’t break the bank.

Two popular options often come up: NaturalReaders and Altered.

But which one is better? This can be a tough choice.

In this article, we’ll break down NaturalReaders vs Altered, comparing their key features, voice quality, pricing, and overall user experience. 

By the end, you’ll know exactly which AI voice generator fits your needs. Let’s dive in!

NaturalReader vs Altered Overview

To give you the best comparison, we’ve used NaturalReaders and Altered.

We tested their features, listened to various voices, and explored different use cases.

This hands-on experience allows us to provide a practical comparison of their strengths and weaknesses.

naturalreader CTA

Unlock a world of information with NaturalReader! 🌎✨ With over 100+ natural-sounding voices in 30+ languages.

7out of 10

Pricing: Yearly Business 50% off. The premium plan starts at $24.5/month.

Key Features:

  • OCR
  • Multiple Languages
  • Audio File Conversion
Altered Logo

Ready to unlock the power of voice cloning? Head over to Altered’s website and start creating stunning audio with AI voices today!

8out of 10

Pricing: Free trial available. Paid plans start at $1/month

Key Features:

  • Voice Morphing
  • AI Voice Effects
  • Voice Cloning

What is NaturalReader?

Have you ever needed a computer to read text aloud? That’s what NaturalReaders does.

It’s a text-to-speech (TTS) software. It converts written words into spoken audio.

You can use it on your computer, phone, or even online. It’s helpful for many things.

Like listening to documents, ebooks, or web pages. Pretty neat.

naturalreader CTA
NaturalReader
7.0

100+ voices at your fingertips! NaturalReader transforms any text into speech. Free plan available. Start listening today! 🎧

Key Benefits

  • Supports 16 different languages. This makes it useful for global content.
  • Offers over 100 natural-sounding voices. You have many choices for how you want the text to sound.
  • Features OCR (Optical Character Recognition). This lets you convert scanned documents or images into editable and readable text.
  • Available on multiple platforms. Use it on Windows, Mac, iOS, Android, and online.

Pricing

  • Yearly Plan: $49/month – Billed yearly as a single payment of $588/year.
  • Yearly Small Business: $24.5/month – Entities must have 20 or fewer employees.
  • Monthly Plan: $99 USD/month – $35 USD/user/month for extra users.
naturalreader pricing

Pros

  • It has a free plan available.
  • OCR is beneficial.
  • The dyslexia font is helpful.
  • Natural-sounding voices.
  • Works across devices.

Cons

  • Premium voices are expensive.
  • The interface feels outdated.
  • Limited voice customization.
  • Customer support can be slow.
  • It requires a learning curve.

What is Altered?

Altered is different from your typical text-to-speech. It focuses more on voice modification.

Think of it as a voice studio on your computer. You can change your voice.

Or create entirely new AI voices. It’s used often for voice acting, content creation, and gaming.

It’s all about manipulating and creating unique sounds.

Altered Logo
Altered
8.0

Ready to unlock the power of voice cloning? Head over to Altered’s website and start creating stunning audio with AI voices today!

Key Benefits

  • Voice cloning: Create a digital copy of your voice.
  • Voice morphing: Blend voices seamlessly.
  • AI voice effects: Apply unique audio effects.
  • Real-time processing: Change voices on the fly.

Pricing

Altered offers a free trial and a range of subscription plans to choose from:

  • Free: $1/month
  • Real-time: $1/month
  • Creator: $30/month
  • Professional: $90/month
altered Pricing

Pros

Cons

  • The free version is minimal.
  • It can be resource-intensive.
  • Occasional audio glitches.
  • Support can be slow.
  • Not ideal for long-form reading.

NaturalReader vs Altered Feature Comparison

This section directly compares NaturalReaders and Altered across key features, helping you determine which tool better suits your needs. 

This feature comparison will help you make the best choice when you look for the best text-to-speech.

Text to Speech Core Functionality

  • NaturalReader: Focuses on converting various text file formats (doc, pdf, odt, ods, google docs) into natural-sounding speech output, transforms any text (text into spoken words). Natural reader offers a smooth reading experience. It provides a complimentary free trial and free plan available, making it accessible to listen to content. Naturalreader provides a great way to convert text to text into speech.
  • Altered offers text-to-speech conversion, but its main focus is speechified, manipulation, and creating unique voiceovers.

Voice Quality and Customization

  • NaturalReader: NaturalReader offers different voices and accent options, allowing users to adjust their reading speed. It aims for lifelike voices, especially in its paid plan. This best text-to-speech service also offers good speech output.
  • Altered: Excels in voice format and modification, allowing morphing, blending, and application of effects. It offers much greater customization than a natural reader provides. If you are looking for the best text-to-speech with extensive voice customization, Altered is the best choice.
naturalreader multiple voice styles

Supported File Formats

  • NaturalReader: Supports various file formats, including pdf, doc, txt, odt, ods, and images (via OCR). This is crucial for accessibility and productivity.
  • Altered: Primarily works with audio files, focusing on direct recording and editing. It does not directly convert text from documents.

OCR (Optical Character Recognition)

  • NaturalReader: Includes OCR, extracting text from images and scanned documents. This is a valuable feature for e-learning and making it accessible to older documents.
  • Altered: Does not offer OCR.
Text-to-speech in Altered

Pricing and Plans

  • NaturalReader offers a free plan and one-time purchase options, providing long-term value. The paid plan unlocks more features and voices.
  • Altered: It uses a subscription model, which can be more expensive in the long term but provides access to advanced features.

Use Cases

  • NaturalReader is ideal for e-learning, personal use, proofreading, and improving accessibility and productivity. It makes it accessible to listen to content from various sources.
  • Altered: Geared towards content creators, voice actors, and audio professionals who need advanced voice manipulation.

User Interface and Experience

  • NaturalReader: Has a simpler, more straightforward interface, making it easy to convert text to text into spoken words and adjust reading speed.
  • Altered: It has a more complex interface due to its advanced features.

What to Look For When Choosing an AI Voice Generator?

Here are some additional key considerations when choosing between NaturalReaders and Altered (or any text-to-speech or voice modification software):

  • Intended Use: The most crucial factor is whether you focus primarily on listening to content (NaturalReaders) or creating unique voiceovers and manipulating audio (Altered).
  • Budget: NaturalReaders offers a free plan and one-time purchases, making it more budget-friendly. Altered is subscription-based, which can be more expensive in the long term.
  • Technical Skills: Altered has a steeper learning curve due to its advanced features. NaturalReaders is more user-friendly for beginners.
  • Specific Voice Needs: Do you need a wide variety of natural-sounding voices (NaturalReaders) or the ability to create highly customized and manipulated voices (Altered)?
  • Integration with Other Tools: Consider whether the software integrates with your existing workflow and audio editing software. Altered has better integration options for audio professionals.
  • Customer Support: Research the quality of the customer support offered by each company.
  • Free Trial/Plan: Take advantage of free trials or plans to test the software before committing to a purchase. This allows you to experience the voice quality and features firsthand.

Final Verdict (Our Pick)

NaturalReader or Altered? It depends on your needs. Need to convert text from images?

Want to listen to web pages or books? NaturalReaders is great. It’s easy.

It has many voices in 30+ accents and languages. You can even adjust the reading speed.

Naturalreader also offers text highlighting. It’s one of the best text tools for everyday use.

Do you need fancy voice changes? Want to clone your voice? Altered is better.

Check user reviews and your needs. If Natural Reader works for you, it’s a good choice.

We tested both. NaturalReaders is better for most people because it converts text into lifelike speech.

Start listening today! Unlock the full potential of speech technology!

See our related articles for alternatives to natural reader. You’ve successfully subscribed!

Frequently Asked Questions

Is NaturalReaders a good choice for listening to audiobooks?

Yes, NaturalReaders is a powerful text-to-speech tool that helps you read books by converting text into audio. It supports over 20 languages, with voices in 30+ accents and languages, allowing users to enjoy a diverse listening experience. It’s a great one-audio reader. It uses speech synthesis to create a human voice from text.

Can Altered create realistic human voices?

Altered focuses on advanced AI speech synthesis and voice output manipulation, not simply creating a human voice. While it can create unique voice output, its strength lies in allowing you to create and modify voices beyond natural human limits. It is not designed to create a natural human voice but to provide tools for allowing users to create something new.

Does NaturalReaders offer an API for developers?

Yes, NaturalReaders offers developers a speech API (speech synthesis) that allows users to integrate NaturalReaders’ powerful text-to-speech technology into their applications and easily convert text into audio.

Which tool is better for non-English content?

NaturalReaders, with its support for voices in 30+ accents and languages and more than supports over 20 languages, is generally better suited for allowing users to work with non-English content. This helps allow users with specific needs and preferences.

How do I choose between NaturalReaders and Altered?

The best choice depended on your specific needs and preferences. If you need simple text-to-audio conversion to get through books, NaturalReaders is an excellent choice. If you need advanced AI voice manipulation, Altered is better. NaturalReaders allows users to use a powerful text-to-speech tool with a human voice.

Related Articles

You have Successfully Subscribed!