Software Alternatives, Accelerators & Startups

Lattice VS ForthWrite

Compare Lattice VS ForthWrite and see what are their differences

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Lattice logo Lattice

Lattice helps teams stay aligned around their goals so they can accomplish more.

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
  • Lattice Landing page
    Landing page //
    2023-09-13
  • 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.

Lattice

$ Details
-
Platforms
-
Release Date
2015 January
Startup details
Country
United States
State
California
Founder(s)
Eric Koslow
Employees
100 - 249

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

Lattice features and specs

  • Comprehensive Performance Management
    Lattice offers a wide range of performance management tools, including goal setting, performance reviews, real-time feedback, and employee development tracking. This suite allows companies to effectively manage and improve employee performance.
  • User-Friendly Interface
    Lattice has an intuitive, easy-to-navigate interface that makes it simple for both managers and employees to use. This reduces the learning curve and enhances user engagement.
  • Customizable Dashboards
    The platform provides customizable dashboards that allow users to track relevant metrics and performance indicators. This personalization helps organizations focus on key areas of interest.
  • Integration Capabilities
    Lattice integrates with various HR and productivity tools such as Slack, Workday, and Google Workspace, allowing for seamless workflow and data synchronization across platforms.
  • Employee Engagement Features
    In addition to performance management, Lattice includes features designed to boost employee engagement like surveys, pulse checks, and eNPS (Employee Net Promoter Score).

Possible disadvantages of Lattice

  • Cost
    Lattice can be expensive relative to other performance management tools, making it less accessible for small companies or startups with limited budgets.
  • Complexity for Small Teams
    The extensive features and capabilities of Lattice might be overwhelming for smaller teams who may not need such a robust suite of tools.
  • Learning Curve
    Despite its user-friendly interface, the comprehensive nature of Lattice's features means there is still a learning curve, requiring initial time investment in training and setup.
  • Dependence on Integrations
    While integrations are a strong point, organizations heavily relying on other platforms need to ensure these are set up correctly, and any issues with third-party tools can disrupt the experience.
  • Limited Customization in Some Areas
    Although many aspects of Lattice are customizable, some users report limitations in customizing specific modules to fit unique organizational needs.

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 Lattice

Overall verdict

  • Lattice is generally considered a good option for organizations looking to improve their performance management and employee engagement processes. Its wide range of features and ease of use make it a valuable tool for HR teams and managers looking to align their workforce with business goals.

Why this product is good

  • Lattice is well-regarded for its ability to streamline performance management and enhance employee engagement through its comprehensive suite of tools. It offers features such as goal setting, performance reviews, feedback, and development tools, making it easier for businesses to manage and improve their workforce's performance. The platform's user-friendly interface and customization options are also praised, allowing organizations to tailor its functionalities to their specific needs.

Recommended for

    Lattice is particularly recommended for small to medium-sized enterprises (SMEs) and tech companies that prioritize employee development and seek an integrated solution for managing performance and engagement. It's also suitable for companies that are looking to foster a culture of feedback and continuous improvement.

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

Lattice videos

Meet Lattice Reviews

More videos:

  • Review - Lattice Hawai'i - Board Game Review
  • Review - Lattice - Manager Experience

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Lattice and ForthWrite)
Employee Performance Management
Email
0 0%
100% 100
HR
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Lattice 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 Lattice and ForthWrite

Lattice Reviews

What Matters: Best OKR Tools and Goal-Setting Software for Effective OKR Tracking and Management
Lattice integrates with platforms like Jira, Salesforce, and Slack, and also provides surveys to help you gather essential feedback.
Top 10 15Five Alternatives You Need to Know in 2024
Lattice is a performance management and employee engagement platform that focuses on continuous feedback and employee development. It helps organizations drive better performance through goal setting, performance reviews, and engagement surveys.
Source: engagedly.com
11 Best 15Five Alternatives & Competitors for USA
Lattice is a performance management platform that helps you set goals, give feedback, and measure employee performance. With its 1:1 agenda feature and goal-tracking capabilities, Lattice is a top contender among 15Five alternatives. This platform allows you to set and track company goals, enable users to see how their individual goals contribute to overall progress, and...
Source: datalligence.ai
18 Best Culture Amp Alternatives and Competitors of 2024
Lattice is not just an engagement platform; it's a career companion. Your organization offers growth opportunities, ongoing feedback, and personalized development plans. From goal-setting to performance assessments, Lattice aligns employee journeys. The instrument is vital for professional advancement.
Top 15Five Competitors & Alternatives To Consider For Engaging Employees
One of Lattice's standout features is its powerful analytics and reporting tools. By tapping into these tools, employers gain valuable insights into their workforce's progress. This enables them to empower employees and make well-informed decisions.
Source: perkupapp.com

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, Lattice seems to be more popular. It has been mentiond 4 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.

Lattice mentions (4)

  • 5 Tools That Let You Code Without Writing a Single Line
    Lattice and Rakuten both use Webflow for parts of their marketing stack. - Source: dev.to / about 1 year ago
  • No capital, no mvp, how do i validate my idea?
    This sounds like https://lattice.com/ ...I don't think you'll be able to export company information outside of their systems. Everything on the company's dime belongs to them. Source: about 3 years ago
  • Ask HN: What do you talk about in 1-on-1s with your managers?
    We use https://lattice.com/ for our people operations and managing 1:1s. Some suggested talking points they recommend include career growth, collaboration / teamwork, engagement / morale, feedback and productivity. Action items include setting growth areas and defining OKRs. - Source: Hacker News / over 3 years ago
  • Calendar Heroes: Michele Wiedemer, Manager of Customer Education at Snyk
    I'm using Asana to track cross-collaborative projects and associated tasks. I'm using Notion for both informal note-taking and as an internal information repository. I use Lattice to track my quarterly goals and KPIs, as well as agendas for one-on-one meetings. - Source: dev.to / almost 5 years ago

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 Lattice and ForthWrite, you can also consider the following products

15Five - 15Five software elevates the performance and engagement of employees by consistently asking questions and starting the right conversations.

ReclaimAI - Helps users prioritize their work and personal calendars

Culture Amp - Culture Amp makes it easy to collect, understand and act on employee feedback. Improve the engagement, experience and effectiveness of every employee - all from one platform.

Superhuman - Superhuman is an email management tool.

Leapsome - Develop your people, scale your business

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