Software Alternatives, Accelerators & Startups

AI Dungeon VS ForthWrite

Compare AI Dungeon VS ForthWrite and see what are their differences

AI Dungeon logo AI Dungeon

Interactive fiction game using advanced AI with a massive deep neural network for limitless text adventures.

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
  • AI Dungeon Landing page
    Landing page //
    2023-10-04
  • 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.

AI Dungeon

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

AI Dungeon features and specs

  • Creative Storytelling
    AI Dungeon offers an open-ended platform for users to create and explore endless storylines, driven by user prompts and AI creativity.
  • Interactive Experience
    It provides a highly interactive experience, where users can directly influence the outcome and direction of the story, making each session unique.
  • Variety of Scenarios
    The platform allows players to explore a vast array of genres and scenarios, from fantasy and sci-fi to mystery and romance, catering to diverse storytelling preferences.
  • Improved Language Model
    With advancements in AI, the language model is continuously improved, providing more coherent and contextually relevant story progressions.
  • Multiplayer Mode
    AI Dungeon supports multiplayer sessions, allowing friends to collaborate and participate in story creation together.

Possible disadvantages of AI Dungeon

  • Repetitive Responses
    The AI sometimes generates repetitive or nonsensical responses, which can disrupt the narrative flow and diminish the user experience.
  • Robust Content Filters Needed
    Given the open-ended nature of the platform, inappropriate or offensive content can occasionally surface, necessitating robust filtering mechanisms.
  • Subscription Costs
    While there is a free version, accessing advanced features and more content requires a subscription, which may not appeal to all users.
  • Limited Long-term Appeal
    Some users might find that the novelty of AI-driven narratives wears off over time, resulting in reduced engagement after prolonged use.
  • High Dependency on User Input
    The quality of the storytelling experience heavily depends on the userโ€™s input, meaning that less imaginative prompts may lead to less engaging stories.

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 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

AI Dungeon videos

AI Dungeon: Is Dragon mode worth it?

More videos:

  • Review - How AI Dungeon (would have) REVOLUTIONIZED gaming FOREVER *read desc

ForthWrite videos

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

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Category Popularity

0-100% (relative to AI Dungeon and ForthWrite)
AI
100 100%
0% 0
Email
0 0%
100% 100
Games
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing AI Dungeon 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

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Reviews

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

AI Dungeon Reviews

We have no reviews of AI Dungeon yet.
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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, AI Dungeon seems to be more popular. It has been mentiond 41 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.

AI Dungeon mentions (41)

  • Can Language Models Serve as Text-Based World Simulators?
    It's still running now: https://aidungeon.com/. - Source: Hacker News / about 2 years ago
  • Can Language Models Serve as Text-Based World Simulators?
    The answer is yes. https://aidungeon.com/ This actually came out before chatGPT and it floored me. - Source: Hacker News / about 2 years ago
  • Suggest me a text-based game with strong DnD elements
    We found 3 games so far that have these options and could let us play around and explore different adventures for our characters that would be a part of the same world our main campaign is happening in, but sort of like happening in an alternate universe. This one (AI Dungeon) looks quite cool because we can choose the setting and characters that look like ours, or just create a new adventure. The only minor... Source: over 2 years ago
  • Need a recommendation for a textual RPG that can be played online
    AI Dungeon - pretty cool game, you can choose your own setting, and character, and play turns. The RPG elements are great, the storytelling is awesome, and overall the game is pretty good for what we need. Source: over 2 years ago
  • A lotta links were given by User/ Throwawaydanielsorry
    Https://aidungeon.io/ Used it A WHILE ago, now that I think about it, same stuff happened as with CAI, used to be good at the start, then it dropped in quality so much I ditched it. You can do NSFW freely as far as I know. Source: almost 3 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 AI Dungeon and ForthWrite, you can also consider the following products

NovelAI - Our AI algorithms create writing based on your own, enabling anyone to produce quality literature.

ReclaimAI - Helps users prioritize their work and personal calendars

character.ai - Engage in open-ended conversations and collaborations with AI-based characters and create your own characters for yourself and others to enjoy. Character.ai is a social platform for creating and interacting with advanced AI chatbots.

Superhuman - Superhuman is an email management tool.

AI Game Master- Dungeon RPG - Fully immersive DnD inspired experience powered by AI

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