Software Alternatives, Accelerators & Startups

Tuple VS ForthWrite

Compare Tuple VS ForthWrite and see what are their differences

Tuple logo Tuple

Tuple is a Mac-only remote pair programming tool for discerning developers

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
  • Tuple Landing page
    Landing page //
    2023-06-16
  • 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.

Tuple

Website
tuple.app
$ 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

Tuple features and specs

  • High-Quality Video and Audio
    Tuple provides excellent quality video and audio for remote pair programming sessions, minimizing lag and ensuring clear communication.
  • Low CPU Usage
    Tuple is optimized for performance, using minimal CPU resources so developers can run other applications without lag.
  • Multiple Participants
    The app supports multiple participants in a single session, making it ideal for team collaborations and more complex programming discussions.
  • Focus on Developer Needs
    Tuple is specifically designed for developers, offering features that cater to the unique requirements of pair programming, such as seamless keyboard and mouse sharing.

Possible disadvantages of Tuple

  • Mac-only Platform
    Currently, Tuple is only available for macOS, limiting its accessibility for teams using other operating systems like Windows or Linux.
  • Subscription Cost
    Tuple requires a subscription, which might be a drawback for smaller teams or individual developers with limited budgets.
  • Lack of Integrated Code Editor
    Unlike some other pair programming tools, Tuple does not provide an integrated code editor, requiring users to rely on third-party applications.
  • Limited Offline Use
    Tuple requires an internet connection for most features, which can be a restriction for developers working in low-connectivity environments.

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

Tuple videos

Python: Data Structures - Lists, Tuples, Sets & Dictionaries tutorial

More videos:

  • Review - TypeScript: The Tuple Type
  • Review - lecture 26 : review what is loop and tuple in python , how we use them

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Tuple and ForthWrite)
Productivity
100 100%
0% 0
Email
0 0%
100% 100
IDE
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Tuple 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 Tuple and ForthWrite. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

Tuple Reviews

We have no reviews of Tuple yet.
Be the first one to post

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, Tuple seems to be more popular. It has been mentiond 26 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.

Tuple mentions (26)

  • JetBrains is shutting down "Code With Me" in all its IDEs
    If anyone out there is looking for an alternative, you should try Tuple: https://tuple.app/ (disclaimer: I work there). When you need to actually get stuff done with other humans, we think Tuple is the best way to do that. If you're interested, you can hit me up for a free month: eli@tuple.app. - Source: Hacker News / 4 months ago
  • Ask HN: Favorite Pairing App?
    And this https://tuple.app/ is tuple, previous company gave us subscriptions to use and I was a huge fan of it. - Source: Hacker News / 9 months ago
  • OpenAI Acquires Multi
    It's on the short side, but this isn't a cloud database or whatever. Nobody is using it in production because it doesn't plug into your apps. There are any number of alternatives you can switch to and there's little productivity lost. https://tuple.app/ is the most direct alternative (and excellent) but in the short term there's also VS Code live share, or screen sharing in whatever your main video chat app is. - Source: Hacker News / about 2 years ago
  • Multi โ€“ Multiplayer Collaboration for macOS
    This seems similar to Tuple https://tuple.app/. - Source: Hacker News / over 2 years ago
  • Win32 DPI and Monitor Scaling
    I'm working on porting a remote-pair-programming application (tuple.app) to windows. I'm currently working through issues we're seeing when monitors are Scaled. 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 Tuple and ForthWrite, you can also consider the following products

USE Together - Collaborative screen sharing with multiple mouse cursors

ReclaimAI - Helps users prioritize their work and personal calendars

Floobits - Floobits brings real-time collaborative editing to text editors, IDEs, and now Atom.

Superhuman - Superhuman is an email management tool.

Duckly - Collaborate on any page with a Figma-like experience

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