Software Alternatives, Accelerators & Startups

NaturalReader VS ForthWrite

Compare NaturalReader VS ForthWrite and see what are their differences

NaturalReader logo NaturalReader

Main Feature: Full Common Functions: Read Text Files o Text files o MS Word files

ForthWrite logo ForthWrite

Email that sounds like you, and gets measurably more like you every week. Drafts in Gmail, Outlook, and the browser. Free to start.
Visit Website
  • NaturalReader Landing page
    Landing page //
    2022-12-31
  • ForthWrite Landing Page
    Landing Page //
    2026-06-19
  • ForthWrite Dashboard
    Dashboard //
    2026-06-19
  • ForthWrite In Gmail
    In Gmail //
    2026-06-19
  • ForthWrite Pricing
    Pricing //
    2026-06-19

ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.

How it works

ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.

Key features

  • Auto-draft: replies waiting in Gmail before you open your inbox
  • Voice matching from your real sent mail, not templates
  • Recipient-aware drafts that adapt to who you are emailing
  • Prompt Lab for version-controlling and A/B testing your persona prompt
  • BYOK support: bring your own API key for Claude, OpenAI, Grok, Mistral, and more
  • Works in Gmail and Outlook on the web, plus a standalone browser widget
  • Training data export and full data portability

Who uses it

Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.

Pricing

Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.

NaturalReader

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

ForthWrite

$ Details
freemium $12.0 / Monthly (Standard plan)
Platforms
Web
Release Date
2026 June
Startup details
Country
United States
State
California
City
San Diego
Founder(s)
Curtis Boortz
Employees
1 - 9

NaturalReader features and specs

  • Variety of Voices
    NaturalReader offers a wide range of natural-sounding voices, including different accents and languages, which enhance the listening experience.
  • User-Friendly Interface
    The platform is easy to navigate with a straightforward user interface, making it accessible for individuals of all technical skill levels.
  • Cross-Platform Availability
    NaturalReader can be accessed via multiple devices, including Windows, Mac, iOS, and Android, providing flexibility and convenience.
  • Customizable Reading Settings
    Users can adjust the reading speed, text highlighting, and voice pitch to suit their specific needs and preferences.
  • Document Support
    The software supports various document formats, such as PDF, Word, and ePub, allowing users to listen to different types of content easily.
  • Browser Extension
    NaturalReader offers a browser extension that allows users to listen to web pages, aiding in accessibility and productivity.

Possible disadvantages of NaturalReader

  • Cost
    While there is a free version, many of the advanced features and higher-quality voices are locked behind a subscription plan, which might be costly for some users.
  • Internet Dependency
    Some features require a stable internet connection, which may not be ideal for users with limited or no internet access.
  • Occasional Mispronunciations
    Despite the high-quality voices, there can still be occasional mispronunciations or lack of context understanding, which can affect the listening experience.
  • Limited Free Features
    The free version of NaturalReader is quite limited in terms of features and voice options, potentially necessitating an upgrade to a paid plan for full functionality.
  • Resource Intensive
    NaturalReader can be resource-intensive, particularly on older or less powerful devices, which might cause performance issues.
  • Privacy Concerns
    Using a cloud-based service for text-to-speech processing raises potential privacy concerns, especially when dealing with sensitive or personal documents.

ForthWrite features and specs

  • Voice Matching
    Learns from your real sent mail, not templates
  • Auto-draft replies
    Replies waiting in Gmail before you open your inbox
  • Batch-drafting
    Draft replies for your entire inbox with one click
  • Works in browser
    Gmail, Outlook, and web browsers
  • BYOK support
    Claude, OpenAI, Grok, Mistral, and more
  • Prompt Lab
    Version control and A/B test your persona prompt
  • Free tier
    10 drafts per week, no credit card required

Analysis of NaturalReader

Overall verdict

  • Overall, NaturalReader is a strong choice for those seeking a reliable and high-quality text-to-speech solution. Its extensive features, ease of use, and high-quality output make it a noteworthy option in the market.

Why this product is good

  • NaturalReader is considered good due to its advanced text-to-speech technology that offers a variety of natural-sounding voices in multiple languages, making it accessible and user-friendly. It is easy to use, with a variety of customization options for speed, voice, and format, enhancing the experience for users ranging from casual listeners to those with specific accessibility needs.

Recommended for

  • Individuals with visual impairments or reading difficulties.
  • People who prefer auditory learning methods.
  • Anyone looking to listen to text documents, websites, or ebooks on the go.
  • Professionals who need to proofread documents by listening.

Analysis of ForthWrite

Overall verdict

  • I don't have verified information about a product called ForthWrite (forthwrite.ai). I cannot confirm its features, quality, or reputation, so I'm unable to provide an accurate assessment of whether it's good.

Why this product is good

  • No reliable data available on this specific product in my knowledge base
  • This may be a newer product, a niche tool, or possibly a fictional/hypothetical name
  • Providing details without verified information could result in inaccurate or fabricated claims

Recommended for

  • Unable to determine without verified product information
  • Consider checking the official website, user reviews on platforms like G2 or Trustpilot, and independent tech review sites for accurate details

Category Popularity

0-100% (relative to NaturalReader and ForthWrite)
Text To Speech
100 100%
0% 0
Email
0 0%
100% 100
AI
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing NaturalReader and ForthWrite.

Which are the primary technologies used for building your product?

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

What makes your product unique?

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

Why should a person choose your product over its competitors?

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

How would you describe the primary audience of your product?

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

What's the story behind your product?

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

User comments

Share your experience with using NaturalReader and ForthWrite. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare NaturalReader and ForthWrite

NaturalReader Reviews

  1. NaturalReader is simple to use and offers high-quality voices. It's a great tool for listening to documents, articles, and PDFs across different devices.


12 Best Text to Speech Solutions for Business and Personal Use
NaturalReader works with Google Docs, eBooks, emails, e-learning materials, PDFs, and webpages. It detects text automatically from the web pages ignoring the ad content and helps you focus on the reading. It supports many documents like ppt(x), ods, non-DRM epub files, odt, doc(x), and txt formats. You can also use it on mobile to listen to content anywhere.
Source: geekflare.com

ForthWrite Reviews

  1. curtisboortz
    ยท Founder at ForthWrite ยท
    I built ForthWrite to fix generic AI email, and I still use it every day

    I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.

    The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.

    What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.

    The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.

    Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.

    ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.

    Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.

    ๐Ÿ Competitors: Jace.ai, Fyxer, Mailmeteor
    ๐Ÿ‘ Pros:    Drafts land inside gmail and outlook; no copy-pasting from a chat window|Voice matching is on the free tier, not paywalled behind paid plans|No api key, no credit card to start; free tier runs on a server-side proxy|Learns from every edit you make before sending; drafts improve over time|Full keyboard flow: alt+shift+d to draft in any thread, no mouse required|Byok on paid plans, 9 providers supported, keys encrypted at rest|Web compose at forthwrite.ai works without installing the extension at all
    ๐Ÿ‘Ž Cons:    10 free drafts/week is enough to evaluate, not enough for a heavy inbox|Auto-draft, batch replies, and prompt lab all require the pro tier|Early-stage product; fewer third-party integrations than mature inbox tools|No mobile app: the extension and add-in are desktop-only (chrome on web, or the outlook desktop add-in)

Social recommendations and mentions

Based on our record, NaturalReader seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

NaturalReader mentions (6)

  • Feeling discouraged over workload
    Wait til you get to CS-330 I'm taking it rn, definitely the hardest class I've ever taken. Also, with that many readings, consider using naturalreaders.com That's what I use for the majority of the readings, I set the WPM at like 230 or so and just follow along, because I read incredibly slow, but can understand it and get through it way faster if I listen to it. This resource has saved me a ton of time so far! Source: about 4 years ago
  • college tips?
    Invest in software like naturalreaders.com that will read your assignments out loud. I'm sure there are better versions than this, but it's the one I use. It lets you set the speed and follow along, which is helps SO MUCH when you're dealing with dry boring material. You can even put your class notes in there and it will read them out loud to help you with memorization. Source: over 4 years ago
  • Long story, but unbelievable. Unless you're a professor, then it's totally believable.
    I wrote my entire explanation of WHY I am having them do the assignment. Please note that I also included a link to naturalreaders.com and told them that because this was so important that if they had trouble reading long text (and these instructions are not that long) to use the text-to-speech function. Source: over 4 years ago
  • What useful unknown website do you wish more people knew about?
    Upload text and documents or convert to mp3 to listen to anywhere anytime. Bored of reading everything? Upload the text on this site and it will convert it in mp3 file. Really good one in my persoanl opinion Https://naturalreaders.com. Source: almost 5 years ago
  • Trying the L-R method; any idea where I can find dual language copies of novels?
    TL = target language, in your case, Spanish. I've been doing a lot of L-R--but as Ryan says, just with Spanish text/audio. I can recommend these sites: openlibrary.org (free to sign up for/use), librosdemario, holaebook, and lelibros.online. I then use the Google Read&Write extension to read the text to me if it's online or naturalreaders.com if it's a download. Good luck! Source: about 5 years ago
View more

ForthWrite mentions (0)

We have not tracked any mentions of ForthWrite yet. Tracking of ForthWrite recommendations started around Jun 2026.

What are some alternatives?

When comparing NaturalReader and ForthWrite, you can also consider the following products

Eleven Labs - The most realistic and versatile AI speech software, ever. Eleven brings the most compelling, rich and lifelike voices to creators and publishers seeking the ultimate tools for storytelling.

ReclaimAI - Helps users prioritize their work and personal calendars

Balabolka - Balabolka is a Text-To-Speech (TTS) program.

Superhuman - Superhuman is an email management tool.

Speechify - Read faster, stay focused & absorb more - Create Audiobooks

Shortwave - Email smarter & faster with a reinvented experience for your Gmail