Software Alternatives, Accelerators & Startups

Scale VS ForthWrite

Compare Scale VS ForthWrite and see what are their differences

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Scale logo Scale

Get human tasks done with just one line of code.

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
  • Scale 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

Scale features and specs

  • Scalability
    Scale's platform is designed to handle large volumes of data efficiently, making it ideal for businesses that need to scale up their data processing capabilities quickly.
  • Data Annotation Quality
    The platform offers high-quality data annotation services, ensuring that the data used in machine learning models are accurate and reliable.
  • Versatility
    Supports a wide range of data types including images, videos, text, and more, making it versatile for various applications across different industries.
  • Speed
    Scale's automation and workflows are designed to process and annotate data quickly, which can significantly speed up the development cycle of AI projects.
  • Customization
    Businesses can create tailored workflows and quality assurance mechanisms to fit their specific needs, enhancing the effectiveness of their data operations.

Possible disadvantages of Scale

  • Cost
    Scale's services can be expensive, particularly for smaller businesses or startups with limited budgets.
  • Complexity
    The platform may have a steep learning curve for new users due to its wide range of features and capabilities.
  • Dependency
    Relying heavily on an external platform like Scale could create dependency issues, impacting flexibility and control over oneโ€™s own data processes.
  • Data Privacy
    Using an external service to handle data could raise concerns about data privacy and security, depending on the sensitivity of the data.
  • Integration
    There may be challenges in integrating Scale with existing systems and workflows, requiring additional resources and time.

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 Scale

Overall verdict

  • Scale AI is generally considered a reliable and effective solution for companies needing scalable data annotation services. Customers appreciate its focus on quality and the variety of services offered, making it a top choice for enterprises looking to enhance their AI capabilities.

Why this product is good

  • Scale AI is considered a good choice for businesses and developers looking for high-quality data annotation services, which are crucial for training machine learning models. Scale provides efficient, scalable solutions with a focus on accuracy, speed, and a wide range of data types, including text, image, and video. The platform integrates seamlessly with existing systems and offers robust security measures to protect customer data. Additionally, Scale AI is known for its extensive quality control processes, which ensure that the annotated data meets high standards required for effective AI model training.

Recommended for

  • Companies developing AI models that require high-quality training data
  • Businesses looking for scalable and efficient data annotation services
  • Developers and data scientists in need of accurate and diverse data types
  • Organizations prioritizing data security and quality control in their ML projects

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

Scale videos

BEST SMART SCALES! (2020)

More videos:

  • Review - Top 5 BEST Smart Scale (2020)
  • Review - Are Body Fat % Scales SCAMS?! | Keltie O'Connor

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Scale and ForthWrite)
AI
100 100%
0% 0
Email
0 0%
100% 100
Productivity
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Scale 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 Scale 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 Scale and ForthWrite

Scale Reviews

Top Video Annotation Tools Compared 2022
In this blog, weโ€™ll quickly explore annotation platforms and the features they offer to help improve the video annotation process. Weโ€™ll be looking closely at six big names in the video annotation market: Innotescus, Dataloop, Scale, V7, SuperAnnotate, and Labelbox.
Source: innotescus.io

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, Scale seems to be more popular. It has been mentiond 10 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.

Scale mentions (10)

  • Need help
    Hello guys hope everyone is doing well. I just wanted to know how can we create https://scale.com/ this type of hero section in Webflow. I want to create this for a client and if you scroll down the logo section it becomes marquee on mobile breakpoint. Source: over 2 years ago
  • ChatGPT is Powered by $15-an-Hour Contractors
    Companies like Tesla literally hired people to stare at pictures all day from their cameras and identify objects, that's how you get the AI to a state where it can learn itself. There's literally multi-billion dollar startups like ScaleAI that are help solving this manual issue. It's not the 'gotcha' that this article is trying to make it out to be. Source: over 3 years ago
  • Hack website jumped the shark - 100 strong against this obamanation
    Scale.com doesn't even work. Now my phone is covered in cracks and barbecue sauce. Source: over 3 years ago
  • How to make text rotate "towards me" in CSS or JavaScript
    This question's a bit hard to articulate but.. How do you produce this effect from https://scale.com/ , the part at the very top of the page where it goes BETTER DATA, BETTER AI/SCALABLE AI/FASTER AI, that rotating effect? Source: over 3 years ago
  • Any programmers here who wants to meet and study together
    For example I have seen that all of the kaggle grand masters have a really strong machine. And companies like openai uses data set from scale.com to make something like dalle. Source: about 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 Scale and ForthWrite, you can also consider the following products

Descript - Text-based audio editor and automated transcription

ReclaimAI - Helps users prioritize their work and personal calendars

Headliner - Promote your podcast, radio show or blog with video

Superhuman - Superhuman is an email management tool.

Otter.ai - Your AI meeting assistant that takes live notes and generates summaries and other insights using Meeting GenAI.

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