Software Alternatives, Accelerators & Startups

Listnr AI VS ForthWrite

Compare Listnr AI VS ForthWrite and see what are their differences

Listnr AI logo Listnr AI

Generate realistic Text to Speech voiceovers online with AI. Convert text to audio and export it as MP3 & WAV files using Listnr

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.
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  • Listnr AI Landing page
    Landing page //
    2022-02-03

Listnr AI is an AI Text to Speech tool which offers publishers state-of-the-art Text to Speech voices without breaking the bank. We have over 1000+ voices in over 80 languages available on our platform.

  • 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.

Listnr AI

Website
listnr.ai
$ Details
freemium $19.0 / Monthly (Individual, 20,000 words per month, 1 User account)
Platforms
Browser Web Google Chrome Mac OSX Safari Windows Firefox Chrome OS Wordpress Ghost.org
Release Date
2020 November

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

Listnr AI features and specs

  • Text to Speech
    Convert your articles into clear, natural-sounding audio using AI-powered text-to-speech technology
  • Languages
    Choose from over 600 voices and 80+ langauges
  • Free Trial
    Use upto 1000 words for free
  • Embeddable Audio Player
    Customize your audio player according to your brand colors, embed easily onto your blog post or website using our iFrame code
  • Podcast Hosting
    Create unlimited podcast shows and unlimited episodes using Text to Speech
  • Podcast Distribution
    Distribute to Spotify, iTunes, Google Podcasts, Audible and 8 other popular distribution platforms.
  • Text to Speech Editor
    Add Pauses, change Tone, pronunciations easily with our state of the art TTS Editor

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 Listnr AI

Overall verdict

  • Listnr AI is generally considered good for those who need reliable and versatile text-to-speech capabilities without requiring extensive audio editing skills.

Why this product is good

  • Listnr AI is a tool that allows users to create realistic voiceovers quickly using advanced AI technologies. It is appreciated for its ease of use, wide range of voice options, and the ability to support multiple languages, which makes it suitable for content creators, educators, and marketers who need high-quality audio content efficiently.

Recommended for

  • Content creators who require quick voiceover solutions.
  • Educators looking to enhance their e-learning materials.
  • Marketers aiming to add engaging audio to their campaigns.
  • Podcasters seeking efficient ways to generate audio content.

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

Listnr AI videos

Listnr (TTS) - Walkthrough

More videos:

  • Demo - How to create AI Text to Speech audio using Listnr.tech
  • Review - Listnr.tech - Review

ForthWrite videos

No ForthWrite videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Listnr AI 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 Listnr AI 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 Listnr AI 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 Listnr AI and ForthWrite

Listnr AI Reviews

11 Best AI Voice Generators to Explore in 2024
Listnr is a great pick for podcasters and content makers who need an easy-to-use narration tool. Itโ€™s packed with various natural-sounding voices in many languages, so you can create top-notch voiceovers that really grab your audienceโ€™s attention. Listnrโ€™s standout features include simple-to-use voice tweaking and text-to-speech conversion. Whatโ€™s more, it offers a...
13 Best AI Voice Generators (March 2023) for Natural Text-to-Speech
Listnr.tech is one of the best-rated Text to Speech tools in 2022, with over 40,000 users using it to create audio content at scale. Most users found it satisfactory. In my tests, the voices sound natural but if you listen closely, you can tell its AI generated voices.
Source: nerdynav.com
The Best AI Voice Generator for 2023
Listnr is a great tool for individuals and businesses in need of high-quality voiceovers for advertisements, e-learning, product demos, presentations, audiobooks, and YouTube videos, as well as publishers and content creators who want to create audio articles and podcasts. Developers may also find Listnrโ€™s APIs useful for adding voiceover audio to apps or games.
Source: webninja.ai
12 Best Text to Speech Solutions for Business and Personal Use
Listnr brings over 600 human-like voices in 75+ languages from Google, Amazon, and Microsoft to produce high-quality text-to-speech outputs.
Source: geekflare.com
10 Best AI Voice Generators
Listnr is personalized to each individual listenerโ€™s routine and preferences. It is also a great tool for creating, managing, and publishing podcasts. Whether you are a commercial or freelance podcaster, Listnr can help you monetize your content through advertising. You can use the AI voice generator tool to distribute and convert audio with commercial broadcasting rights on...
Source: www.unite.ai

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, Listnr AI seems to be more popular. It has been mentiond 2 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.

Listnr AI mentions (2)

  • How we scaled Listnr to 20,000+ users and $600k in revenue
    But listnr.tech had another use case with was right in front of us - AI Voiceovers, people were using listnr.tech not to create podcasts but to create voiceovers for their youtube videos. Source: almost 4 years ago
  • Show HN: I scaled a text to speech app from 0 to 5000 users
    We launched Listnr back in Sept' 20 and since then have acquired over 5000 users and have done over $75k+ in revenue. But we're not stopping at TTS, its just the beginning - we want to change the future of podcasting :) Checkout Listnr here - https://listnr.tech/. - Source: Hacker News / about 5 years ago

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 Listnr AI 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

Play.ht - AI Voice and Speech Generation tool

Superhuman - Superhuman is an email management tool.

Murf AI - Lifelike voiceovers in minutes.

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