Software Alternatives, Accelerators & Startups

Chili Piper VS ForthWrite

Compare Chili Piper VS ForthWrite and see what are their differences

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Chili Piper logo Chili Piper

Chili Piper is an intelligent calendar for Sales teams, to book their own meetings or set appointments for other teams.

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
  • Chili Piper Landing page
    Landing page //
    2023-09-28
  • 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

Chili Piper features and specs

  • Automated Scheduling
    Chili Piper offers advanced automated scheduling that reduces manual effort, improves team efficiency, and enhances the booking experience for clients.
  • Real-time Lead Routing
    It features real-time lead routing, ensuring leads are directed to the right sales representative immediately, improving response times and increasing conversion rates.
  • Integrations
    Chili Piper integrates seamlessly with major CRM systems like Salesforce and HubSpot, allowing for streamlined workflows and better data management.
  • User-Friendly Interface
    The platform has an intuitive and easy-to-use interface, which reduces the learning curve and allows users to get up to speed quickly.
  • Customizable Booking Rules
    It offers customizable booking rules and templates so businesses can tailor the scheduling process to fit their specific needs and workflows.

Possible disadvantages of Chili Piper

  • Cost
    Chili Piper can be expensive for small to medium-sized businesses, making it less accessible for companies with a limited budget.
  • Complex Configuration
    The initial setup and configuration can be complex and time-consuming, requiring a thorough understanding of the system and its functionalities.
  • Support
    Some users report that customer support can sometimes be slow or not as helpful as expected, which can be frustrating when issues arise.
  • Feature Overload
    The extensive features available may feel overwhelming to new users who only need basic functionalities, making the platform appear more complex than necessary.
  • Mobile Experience
    The mobile experience is not as robust as the desktop version, which can be limiting for users who rely heavily on mobile devices for business operations.

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 Chili Piper

Overall verdict

  • Chili Piper is considered a strong tool for businesses that need to optimize their scheduling processes and enhance sales efficiency. It is generally well-regarded in reviews for improving conversion rates and simplifying the lead management process.

Why this product is good

  • Chili Piper is frequently praised for its streamlined scheduling and meeting automation capabilities. Companies that rely on inbound sales and meeting coordination appreciate its ability to intelligently route and schedule meetings, reducing friction for both sales teams and prospective clients. The platform also integrates well with common CRM systems like Salesforce, providing seamless data flow and enhancing productivity.

Recommended for

    Chili Piper is recommended for sales teams, customer success teams, and operations teams in organizations that experience high volumes of inbound meeting requests or need to optimize their pipeline conversion rates. It is particularly beneficial for companies using CRM systems looking for ways to automate and enhance their scheduling processes.

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

Chili Piper videos

Chili Piper Concierge - Explainer

More videos:

  • Review - How Chili Piper uses the Intelligent Form Scheduler
  • Demo - How Grow Used Chili Piper to Improve MQL to Demos Scheduled by 75%

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Chili Piper and ForthWrite)
Appointment Scheduling
100 100%
0% 0
Email
0 0%
100% 100
Meeting Management
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Chili Piper 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 Chili Piper 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 Chili Piper and ForthWrite

Chili Piper Reviews

The Best 24 Appointment Scheduling Apps and Booking Software
Chili Piper is an inbound conversion platform built for revenue teams, with features that help reps close deals faster. Chili Piper is perfect for sales teams with 5+ people. Itโ€™s for teams who are looking to book sales meetings faster, whether it be:
The Best Alternatives to Doodle That You Should Check Out
A practical feature of Chili Piper optimizes your calendar and improves productivity. You can set appointment reminders, set buffers between meetings, and reserve time slots. Most important, it makes it easy to schedule appointments.
Source: trafft.com
The 6 Best Calendly Alternatives in 2022 (Free & Paid Options)
In the Calendly vs Chili Piper battle, Calendly works well for the individual, but Chili Piper is designed for teams that need sophisticated features.

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, Chili Piper seems to be more popular. It has been mentiond 2 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.

Chili Piper mentions (2)

  • Uncovering Frontend Data Aggregation: Our Encounter with BFF, GraphQL, and Hydration
    Our team at Chili Piper has recently started migrating our backend to a microservices architecture. As a front-end developer, I've been documenting my journey and insights while tackling the challenge of handling aggregated data in this new scenario. - Source: dev.to / over 3 years ago
  • Introvert Project Managers
    Head Sales Rep. ~ Love my job and sometimes it scares me most because I get anxious all the time especially when clients just email me for meetings and booked in 10 minutes.. I know it's my job to handle meetings and all but I hope they sometimes value someone's time. So what I do before every meeting is drink tea and meditate for a 10 or so talk to my plants and chill with my pets, also using chilipiper so that... Source: about 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 Chili Piper and ForthWrite, you can also consider the following products

Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.

ReclaimAI - Helps users prioritize their work and personal calendars

Geekbot - Discover how to organise asynchronous stand up meetings in Slack and keep your team synced using Geekbot. Start your free trial today!

Superhuman - Superhuman is an email management tool.

Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.

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