Software Alternatives, Accelerators & Startups

Stackby VS ForthWrite

Compare Stackby VS ForthWrite and see what are their differences

Stackby logo Stackby

API first collaborative databases to build your own tools, the way you want. Sign up for free.

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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  • Stackby Landing page
    Landing page //
    2023-06-14

Stackby is a collaborative database platform that empowers anyone to create their own workflows and automate it via third party services. It brings together the familiarity of spreadsheets, functionality of databases and best business APIs (YouTube, MailChimp, Clearbit, etc.) on a single new customizable canvas. No coding and training needed.

Choose from 50+ pre-defined templates across various domains like Sales, Product, Marketing, Growth Hacking, Video production, Creatives, Project Management here - www.stackby.com/templates or build your own from scratch. The possibilities are endless.

  • 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.

Stackby

$ Details
paid Free Trial
Platforms
Browser Android
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

Stackby features and specs

  • Versatile Database Management
    Stackby offers a versatile platform that combines databases, spreadsheets, and automation. Users can manage data effectively, similar to working with spreadsheets but with the enhanced capabilities of a database.
  • Customizable Views
    Stackby provides multiple views such as grid, kanban, gallery, and forms, allowing users to customize how they view and interact with their data to better suit their workflow needs.
  • Automation Capabilities
    The platform allows users to automate workflows using integrations with popular third-party apps, enabling more efficient data management and reducing manual work.
  • Real-time Collaboration
    Stackby supports real-time collaboration, making it easy for teams to work together on data projects simultaneously, improving teamwork and productivity.
  • Easy to Use Interface
    With a user-friendly interface, Stackby is accessible to users who may not have extensive technical knowledge, allowing a wider range of users to leverage the tool effectively.

Possible disadvantages of Stackby

  • Pricing Structure
    Some users may find the pricing structure of Stackby to be on the higher side, especially for smaller teams or individual users who might not utilize all the premium features available.
  • Learning Curve for Complex Features
    While basic features are user-friendly, there can be a learning curve associated with more complex functionalities, which might require additional time and effort to master.
  • Limited Offline Access
    Stackby might offer limited functionality in offline mode, meaning that continuous internet access is needed to make full use of the platform's capabilities.
  • Integration Limitations
    Although Stackby does support various integrations, some users might find certain desired integrations are not available or might require additional workarounds.
  • Performance with Large Datasets
    Some users may experience performance issues when working with very large datasets, which could hinder efficiency and speed.

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

Stackby videos

Welcome to Stackby

More videos:

  • Review - Stackby Review -- Airtable Competitor, But Should You Switch? [AppSumo 2020]
  • Review - Stackby Onboarding and Review: Spreadsheets Powered By APIs
  • Review - Content Planning: How I Plan YouTube Videos! (Using Stackby)

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Stackby and ForthWrite)
Spreadsheets
100 100%
0% 0
Writing Tools
0 0%
100% 100
Project Management
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Stackby 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 Stackby and ForthWrite

Stackby 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)

Social recommendations and mentions

Based on our record, Stackby seems to be more popular. It has been mentiond 11 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.

Stackby mentions (11)

  • Is it Possible to manage Email Campaigns for Marketing Agency ?
    Yes Now It's Possible by using stackby you can Manage Email Campaigns and track your email campaigns by connecting MailChimp API and SendFox API directly at the columns in Stackby. Source: almost 3 years ago
  • Stackby | A new collaborative canvas to manage and automate work.
    Stackby proves to be a powerful Airtable Alternative, offering a plethora of features and functionalities that cater to diverse needs. With its customizable templates, seamless integrations, collaboration features, advanced data visualization, automation capabilities, and robust security measures, Stackby provides a comprehensive solution for managing and organizing data effectively. Consider giving Stackby a try... Source: about 3 years ago
  • free-for.dev
    StackBy โ€” One tool that brings together flexibility of spreadsheets, power of databases and built-in integrations with your favorite business apps. Free plan includes unlimited users, 10 stacks, 2GB attachment per stack. - Source: dev.to / over 3 years ago
  • Now, get your all data at your fingertip.
    After close to 400 days of development (by a huge team of 1), weโ€™ve finally launched our brand new, completely built from scratch Stackby iOS app. Source: almost 5 years ago
  • HELP: App to replace Google Calendar and Google Tasks
    Go with stackby.com .. It is the best tool out there! Source: almost 5 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 Stackby and ForthWrite, you can also consider the following products

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

Superhuman - Superhuman is an email management tool.

monday.com - The most intuitive platform to manage projects and teamwork

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.

Paperflite - Paperflite is a prospect engagement platform to enable business development reps to see what sells.

Lavender - Realtime coaching for sales emails.