Software Alternatives, Accelerators & Startups

Tetrisly VS ForthWrite

Compare Tetrisly VS ForthWrite and see what are their differences

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Tetrisly logo Tetrisly

Starter kit for design systems and wireframes builder (Sketch/Figma)

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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  • Tetrisly Landing page
    Landing page //
    2023-08-22

Tetrisly is a new approach to organizing libraries in Figma and Sketch. 2500+ components help you create wireframes faster or create a library for a design system. Itโ€™s a perfectly crafted, named, organized Component Library based on recent Figma and Sketch features.

โ€ข 2500+ Resizable components
โ€ข Organized nested Symbols and Overrides
โ€ข Organized Layer and Text Styles
โ€ข Auto / Smart Layout
โ€ข Components are grouped by their function instead of by their complexity
โ€ข Ready to work at scale
โ€ข Components ID system
โ€ข Easily customizable styles
โ€ข Example Wireframes and Process Files
โ€ข Components are synced with foundations so every change is global

What are the benefits of Tetrisly?

UX Designers:
โ€ข Speed up the wireframing process
โ€ข All changes are global, you donโ€™t have to change all elements locally again and again
โ€ข Collaborate with other UX designers on library development and expansion

UI Designers:
โ€ข Create one source of truth for your product
โ€ข Just start creating the component library with ideal file organization
โ€ข Build the right inheritance structure for design tokens and components based on your needs

Product teams:
โ€ข Reduce the entry threshold for new designers into the project
โ€ข A fully scalable file organization methodology gives you unlimited possibilities of product development
โ€ข Minimize the number of misunderstandings, mistakes and time-wasting thanks to good organization

  • 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.

Tetrisly

Pricing URL
-
$ Details
paid $59.0 / One-off
Platforms
Sketch Figma
Release Date
2019 November

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

Tetrisly features and specs

  • Comprehensive Components Library
    Tetrisly offers a well-organized and extensive library of UI components that can be utilized by designers, making it easier to prototype and build user interfaces quickly.
  • Figma Integration
    The tool is designed to work seamlessly with Figma, a popular design tool, enabling designers to use Tetrisly components directly within their existing Figma projects.
  • Design Consistency
    Using pre-designed components from Tetrisly helps maintain design consistency across different screens and projects, improving the overall user experience.
  • Time-Efficient
    By providing ready-to-use components and templates, Tetrisly helps designers save a significant amount of time compared to designing UI elements from scratch.
  • Regular Updates
    Tetrisly receives regular updates, ensuring that users have access to the latest design trends and components.

Possible disadvantages of Tetrisly

  • Dependency on Figma
    Since Tetrisly is deeply integrated with Figma, users who prefer or are required to use other design tools might find it less useful.
  • Learning Curve
    Despite its ease of use, new users might take some time to familiarize themselves with the full range of components and how to best utilize them within their projects.
  • Cost
    Tetrisly offers a subscription-based pricing model, which might be a barrier for smaller teams or individual designers with limited budgets.
  • Limited Customization
    While the components are well-designed, some users may find the level of customization offered by Tetrisly to be limited, restricting their creative freedom.

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 Tetrisly

Overall verdict

  • Tetrisly is generally considered a good resource for designers who seek a structured, efficient way to create user interfaces with a high level of consistency. Its user-friendly design and extensive library make it a valuable tool for many design projects.

Why this product is good

  • Tetrisly is a design system that offers a comprehensive library of components and design patterns. It aims to streamline the process of creating user interfaces by providing pre-designed, customizable elements and templates. Users appreciate Tetrisly for its ability to save time and maintain consistency across design projects. The resources are useful for both new designers looking to learn and experienced designers wanting to improve their workflow.

Recommended for

    Tetrisly is recommended for UI/UX designers, product designers, and design teams who wish to streamline their design processes. It's also valuable for freelancers who want to enhance their productivity and achieve consistency in their 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

Tetrisly videos

Tetrisly for Figma

More videos:

  • Review - Tetrisly for Sketch

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 Tetrisly and ForthWrite)
Design Tools
100 100%
0% 0
Writing Tools
0 0%
100% 100
User Experience
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Tetrisly 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 Tetrisly and ForthWrite

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 Tetrisly and ForthWrite, you can also consider the following products

Root UI Kit - Wireframe & design starter kit ๐Ÿ› ๏ธ

Superhuman - Superhuman is an email management tool.

Eva Design System - A free customizable design system

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.

Dashboard UI Kit - A modern & responsive dashboard UI kit for designers.

Lavender - Realtime coaching for sales emails.