Software Alternatives, Accelerators & Startups

Belly VS ForthWrite

Compare Belly VS ForthWrite and see what are their differences

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Belly logo Belly

Belly Official Pledgemusic Campaign Poster. December 8, 2017 December 8, 2017.

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
  • Belly Landing page
    Landing page //
    2022-06-13
  • 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

Belly features and specs

  • Customer Engagement
    Belly provides an interactive loyalty program that helps businesses engage and retain customers by rewarding them for repeat visits and purchases.
  • Customization
    Businesses can customize their loyalty programs to match their brand identity and customer preferences, enhancing the overall customer experience.
  • Analytics
    Belly offers comprehensive analytics and reporting tools that help businesses understand customer behavior and measure the effectiveness of their loyalty programs.
  • Digital Integration
    Belly integrates with various digital platforms, including email and mobile apps, making it easier for businesses to manage their loyalty programs and communicate with customers.
  • User-Friendly Interface
    The platform is designed to be easy to use for both business owners and customers, reducing the learning curve and increasing adoption rates.

Possible disadvantages of Belly

  • Cost
    Some businesses might find the pricing for Belly's services to be on the higher side, especially smaller enterprises with limited budgets.
  • Dependency on Technology
    Belly's system relies heavily on technology and digital devices, which might be a hurdle for businesses or customers less comfortable with using such tools.
  • Customer Data Privacy
    As with any digital loyalty program, there are concerns regarding the privacy and security of customer data, which businesses need to address to build trust.
  • Implementation Time
    Setting up and customizing the Belly loyalty program can take time, potentially delaying its launch and immediate benefits to the business.
  • Limited Physical Rewards
    While digital rewards and engagement are strong points, businesses that rely on physical rewards might find Belly's offerings less suitable compared to traditional loyalty programs.

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 Belly

Overall verdict

  • Overall, Belly is considered a good solution for businesses looking to enhance their customer loyalty programs with a modern, digital approach. Its scalability and ease of use make it an appealing option for those seeking to build stronger relationships with their customers.

Why this product is good

  • Belly (bellycard.com) is a digital loyalty program that allows small to medium-sized businesses to engage with their customers more effectively. It offers a customizable rewards system that businesses can tailor to their specific needs, helping to increase customer retention and repeat visits. With its user-friendly interface and integration capabilities, it empowers businesses to track customer interactions and gather valuable data to refine their marketing strategies.

Recommended for

    Belly is recommended for small to medium-sized businesses, such as cafes, boutiques, and local retail shops, that want to implement an effective loyalty program to incentivize return visits and build a loyal customer base. It's particularly beneficial for those who appreciate the ability to customize their offerings and analyze customer behavior through data insights.

Belly videos

What Happened In BELLY??!! (1998) PRIMM'S HOOD CINEMA

More videos:

  • Review - What I learned from BELLY movie review Was this a good movie? What does the title mean? Nas vs DMX
  • Review - Belly ( Review & Discussion )

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 Belly and ForthWrite)
Loyalty Marketing
100 100%
0% 0
Writing Tools
0 0%
100% 100
Customer Loyalty Program
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Belly 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 Belly and ForthWrite

Belly Reviews

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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)

What are some alternatives?

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

Annex Cloud - Reward customers for completing traditional actions such as purchasing, as well as for taking...

Superhuman - Superhuman is an email management tool.

Five Stars - Discover millions of rewards from thousands of local businesses.

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

Smile.io - Reward programs for online businesses

Lavender - Realtime coaching for sales emails.