Software Alternatives, Accelerators & Startups

Bubble.io VS ForthWrite

Compare Bubble.io VS ForthWrite and see what are their differences

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Bubble.io logo Bubble.io

Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.

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
  • Bubble.io Landing page
    Landing page //
    2023-01-24
  • 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.

Bubble.io

Website
bubble.io
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States

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

Bubble.io features and specs

  • No Coding Required
    Bubble.io allows users to build web applications without requiring any coding knowledge, making it accessible for non-developers.
  • Customizable
    The platform offers a high degree of customization enabling users to design and create unique applications tailored to their specific needs.
  • Rapid Prototyping
    Helps in quickly building and testing application prototypes, which accelerates the development process and reduces time-to-market.
  • Built-in Database
    Includes an integrated database, simplifying data storage and management tasks within the application.
  • Expandable with Plugins
    Supports a variety of plugins to extend functionality, allowing for the incorporation of more complex features without needing to code.
  • Responsive Design
    Automatically handles responsive design, ensuring applications look good on both desktop and mobile devices.
  • Community and Resources
    Offers a robust community along with extensive documentation and tutorials, aiding users in troubleshooting and learning.

Possible disadvantages of Bubble.io

  • Learning Curve
    Despite being a no-code platform, there is still a learning curve associated with understanding and navigating Bubble.io's user interface and capabilities.
  • Performance
    Applications built on Bubble.io can sometimes suffer from performance issues, particularly as they scale.
  • Limited Native Mobile Support
    Direct support for native mobile application development is limited; additional tools and steps are required to convert Bubble.io applications into native apps.
  • Dependency on Platform
    Being a proprietary system, users are dependent on Bubble.io for hosting and platform updates, which could pose risks if the company changes its policies or faces downtime.
  • Cost
    While there is a free tier, more complex and feature-rich applications often require premium plans, which can be costly.
  • Scalability
    Though ideal for small to medium projects, Bubble.io might not be the best choice for very large and highly scalable applications due to its performance constraints.
  • Complex Conditional Logic
    Handling very complex conditional logic and workflows can become cumbersome and might require more advanced workarounds.

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

Bubble.io videos

Bubble.io Tutorial: How to Build an App on Bubble in 2023

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Bubble.io and ForthWrite)
No Code
100 100%
0% 0
Writing Tools
0 0%
100% 100
Website Builder
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Bubble.io 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 Bubble.io 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 Bubble.io and ForthWrite

Bubble.io Reviews

Low-Code Platforms Compared: Enterprise Guide for Developers
Bubble: A widely used web app builder with visual workflows, a built-in database, and growing AI-assisted development features. Ideal for simple applications and fast experimentation, but limited when backend control and large-scale orchestration become central.
Source: rierino.com
10 Top Firebase Alternatives to Ignite Your Development in 2024
If youโ€™re looking to quickly prototype an idea, validate a concept, or even launch a full-fledged product without getting bogged down in code, Bubble.io is your ticket. Itโ€™s also a fantastic learning tool for those who want to dip their toes into the world of app development without a steep learning curve.
Source: genezio.com
19 Best WordPress Alternatives in 2025
Bubble is a revolutionary platform that allows anyone to build web applications without writing a single line of code. It uses a visual programming interface where you drag and drop elements to create functionalities. Bubble is perfect for startups and non-technical users who want to quickly prototype and launch their ideas.
Source: www.pixpa.com
Top 10 Android Studio Alternatives For App Development
Bubble is a no-code application and development platform which was developed by Bubble Group which helps noncoder people to build website apps without writing a single line of code.
ILLA Cloud vs. Retool vs. Bubble - Unveiling the Best Low-Code Platforms
In the quest for the best low-code platform, Retool, Bubble, and ILLA Cloud all offer unique features and capabilities. While Retool shines with its self-hosted option and Bubble contributes to the open-source community, ILLA Cloud stands out as a powerful and flexible low-code platform. With its comprehensive feature set, affordable pricing models, and self-hosted...

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, Bubble.io seems to be more popular. It has been mentiond 446 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.

Bubble.io mentions (446)

  • The Text Field is the New Dashboard
    David Bressler built ExcelFormulaBot using Bubble.io and OpenAI's API as a solo founder. Monthly operating costs: $150-300. The product generates meaningful recurring revenue. A documented case from 2025 shows a solo founder scaling a modular furniture business to $10 million in annual revenue using AI agents for product design (generative 3D modeling), customer support (LLM trained on FAQs), marketing... - Source: dev.to / 2 months ago
  • Solved: What is the best and most cost effective no code app builder for web and mobile apps?
    General-purpose no-code platforms like Bubble are designed for maximum flexibility, allowing users to build highly customized web applications, often with responsive designs that function well on mobile browsers (Progressive Web Apps โ€“ PWAs). They excel at handling complex logic, custom databases, and robust integrations. - Source: dev.to / 6 months ago
  • How to Send eSignature Documents from Bubble.io
    Log in to Bubble.io: Log in to your Bubble.io account. You can either create a new app or use an existing one where you want to integrate eSignature functionality. - Source: dev.to / 7 months ago
  • What is the Most Effective AI Tool for App Development Today?
    AI tools are democratizing app development, enabling both seasoned programmers and non-technical users to bring ideas to life faster than ever. They handle everything from generating code in natural language to optimizing user experiences through data-driven insights. This article explores the diverse array of AI tools available, drawing on insights from industry experts to highlight their strengths and... - Source: dev.to / 11 months ago
  • ๐ŸŽฏ How to Format Numbers & Currencies in Bubble (Bubble.io Tutorial)
    Formatting numbers and currencies is one of those small yet powerful details that can significantly enhance the user experience of your app. Whether you're building a finance dashboard, e-commerce store, or expense tracker in Bubble.io, this guide will help you display values in a way that's clean, readable, and user-friendly. - Source: dev.to / about 1 year 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 Bubble.io and ForthWrite, you can also consider the following products

Webflow - Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.

Superhuman - Superhuman is an email management tool.

Softr - From zero to a website in 5 mins, using building blocks.

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.

Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

Lavender - Realtime coaching for sales emails.