Software Alternatives, Accelerators & Startups

Outgrow VS ForthWrite

Compare Outgrow VS ForthWrite and see what are their differences

Outgrow logo Outgrow

Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.

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
  • Outgrow Landing page
    Landing page //
    2023-05-06
  • 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.

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

Outgrow features and specs

  • Customization
    Outgrow offers a high level of customization, allowing users to create personalized and interactive content such as quizzes, calculators, and assessments tailored to their brand.
  • Ease of Use
    The platform provides a user-friendly interface that simplifies the process of building interactive content, even for users without technical expertise.
  • Lead Generation
    Outgrow's interactive content is designed to boost lead generation by engaging users and collecting valuable data through various forms and call-to-actions.
  • Analytics
    Outgrow offers robust analytics tools to track engagement, conversion rates, and other key metrics, helping businesses optimize their campaigns.
  • Integrations
    The platform supports integration with a wide range of third-party marketing tools and CRMs, facilitating smooth data transfer and streamlined workflows.

Possible disadvantages of Outgrow

  • Cost
    Outgrow can be more expensive compared to other similar tools, which may not be ideal for small businesses or startups with limited budgets.
  • Learning Curve
    Despite its user-friendly interface, there may be a learning curve for new users to fully leverage all of Outgrow's features and capabilities.
  • Limited Templates
    Some users have noted that the number of available templates can be limiting, particularly for niche industries that require more specific designs.
  • Support
    Users have reported that customer support response times can be slower than expected, which might be problematic for urgent issues.
  • Dependency on Internet
    Outgrow is a web-based platform, so a stable internet connection is necessary to access and utilize its features, which might be a limitation in areas with poor connectivity.

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 Outgrow

Overall verdict

  • Overall, Outgrow is a good option for businesses seeking to enhance their digital marketing efforts with interactive and engaging content. It is particularly suited for those who want to improve customer interaction and generate higher leads without investing significantly in development resources.

Why this product is good

  • Outgrow (outgrow.co) is popular for its ability to create interactive content such as quizzes, calculators, surveys, and polls without extensive technical knowledge. It provides a user-friendly interface and numerous templates that can be customized to fit various industries and use cases. Additionally, the platform supports lead generation and offers analytics to measure engagement and conversion rates, making it a valuable tool for marketers looking to increase engagement and capture leads.

Recommended for

  • Digital marketers looking to enhance audience engagement.
  • Businesses aiming to capture more leads through interactive content.
  • Companies that want to provide personalized experiences to their users.
  • Marketing teams that do not have extensive technical expertise but need to create sophisticated 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

Outgrow videos

Outgrow Review - Surprisingly good but is it worth the money?

More videos:

  • Review - Outgrow review
  • Review - Outgrow Review | Interactive Calculators and Quizzes | Pearl Lemon Reviews

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Outgrow and ForthWrite)
Conversion Optimization
100 100%
0% 0
Email
0 0%
100% 100
Surveys
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Outgrow 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 Outgrow 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 Outgrow and ForthWrite

Outgrow Reviews

14 ProProfs alternatives for quizzes, surveys, and more in 2025
Outgrow not only provides a robust quiz creation tool, but it also gives you the ability to create surveys and add chatbots and calculators. No design or coding skills are necessary, and the interface is much more user-friendly than many other similar options. Plus, if youโ€™re worried about a learning curve, Outgrow has you covered with a 24-7 customer service chat feature.
Source: www.jotform.com
Typeform Alternatives: Tools for Surveys, Forms, and Quizzes
If you are looking for a tool to create complex or highly custom quizzes, Outgrow is a better choice than Typeform. Customers praise the customization features, which go beyond Typeformโ€™s one layout. You can also customize the URL your quiz is hosted on.
Source: survicate.com
Best Poll Apps to Look for in 2021 | Create a Poll in Seconds!
You can even customize your polls by adding the necessary branding elements. Also, embed it on your website or share it instantly via multiple channels like chat, pop-up etc. After which you can analyze the poll results with the help of Outgrowโ€™s analytical reporting.

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, Outgrow 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.

Outgrow mentions (6)

  • Awesome-no-code-tools
    Outgrow - Boost your marketing with highly interactive content. - Source: dev.to / almost 2 years ago
  • 10 Effective Tools of Interactive Content for Your Marketing Strategy
    You can use a tool like Outgrow where you can create all such pieces using one single platform without having no-code knowledge. Source: about 3 years ago
  • Promotion tricks
    Outgrow (polls, quizzes, surveys, assessments, chatbots, and calculators). Source: over 3 years ago
  • Typeform Alternative
    I stumbled upon outgrow.co which actually seems better. Source: about 4 years ago
  • I have a formula question for a calculator.
    I am trying to write a formula that works on a web form calculator from outgrow.co. I don't know PENDAS or anything remotely above basic algebra. Hoping someone here can help with this formula. T got as far as this (((Q1*Q2>=0)and(Q1*Q2<600))?(Q1*Q2)*1.50:0) but know this is wrong as it only accounts for under 600 SF. Source: over 4 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 Outgrow and ForthWrite, you can also consider the following products

Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!

ReclaimAI - Helps users prioritize their work and personal calendars

Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.

Superhuman - Superhuman is an email management tool.

uberflip - Organize and Centralize ALL of your Content in minutes

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