Software Alternatives, Accelerators & Startups

ForthWrite VS Smart Reply Pro

Compare ForthWrite VS Smart Reply Pro and see what are their differences

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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Smart Reply Pro logo Smart Reply Pro

While other AIs try to do everything, Smart Reply Pro focuses on one thing: helping you craft clear replies. Built for Gmail, LinkedIn, X, WhatsApp Web and 6 more. Free today.
  • 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.

Not present

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

Smart Reply Pro

$ Details
freemium โ‚ฌ6.0 / Monthly
Platforms
-
Release Date
2026 April

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

Smart Reply Pro features and specs

  • AI-Powered Efficiency
    Smart Reply Pro leverages artificial intelligence to generate quick, context-aware responses, helping users save significant time when managing high volumes of messages or emails.
  • Consistency in Communication
    The tool helps maintain a consistent tone and style across replies, which can be especially useful for businesses aiming to uphold a professional brand voice.
  • Reduced Response Time
    By automating reply suggestions, the tool can drastically cut down the time needed to respond to customers or contacts, improving overall responsiveness.
  • Customization Options
    Users may be able to tailor response templates and tone settings to better fit their specific industry or personal communication style.
  • Multi-Platform Integration
    Smart Reply Pro is likely designed to integrate with various messaging and email platforms, streamlining workflow across different communication channels.

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

Analysis of Smart Reply Pro

Overall verdict

  • Smart Reply Pro appears to be an AI-powered response/reply automation tool, but I don't have verified, up-to-date information confirming its current features, pricing, reliability, or user satisfaction, so I can't authoritatively confirm it's 'good.' I'd recommend checking recent independent reviews, testing any free trial, and verifying data privacy practices before committing.

Why this product is good

  • AI reply tools like this can save time by automating repetitive responses
  • May integrate with common platforms like email or messaging apps
  • Could offer customizable templates for tone and context

Recommended for

  • Businesses handling high volumes of customer inquiries
  • Individuals seeking to speed up email or chat responses
  • Teams wanting to test AI automation tools before larger scale adoption

Category Popularity

0-100% (relative to ForthWrite and Smart Reply Pro)
Email Productivity
100 100%
0% 0
AI
0 0%
100% 100
Email
100 100%
0% 0
Messaging
0 0%
100% 100

Questions & Answers

As answered by people managing ForthWrite and Smart Reply Pro.

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.

Smart Reply Pro's answer:

Smart Reply Pro is the only AI built for one specific job: the reply. Instead of trying to do everything like general-purpose chatbots, it focuses on reading the tone, pressure, and intent of any incoming message and drafting five calibrated reply variants in your own voice โ€” in under a second. It learns your "Tone DNA" from how you write, never logs into your accounts, never auto-sends anything, and never reads your inbox in the background. You stay fully in control: it proposes, you decide.

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.

Smart Reply Pro's answer:

Three reasons. First, it sounds like you, not like AI โ€” Style learning mirrors your cadence, vocabulary, and restraint, so the longer you use it the more it matches your voice. Second, it's privacy-first by design: no inbox access, no OAuth, no IMAP/SMTP, no auto-send, no training on your messages, no selling data. The extension only sees text you actively select. Third, it's fast and tactical โ€” sub-second drafts with five voices (Neutral, Direct, Polite, Friendly, Confident) plus Pro tactical modes, a Command Palette, Tone Morph dial, and Hover Oracle that reveals the sender's true pressure and hidden ask. And the pricing respects you: free tier with 5 replies a day, Pro at โ‚ฌ6/month, cancel anytime.

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.

Smart Reply Pro's answer:

People who write for a living and want their messages back without losing their own voice. Specifically: founders, freelancers, recruiters, customer support teams, short-term rental hosts, sales professionals, and anyone who handles a high volume of email, LinkedIn, Slack, WhatsApp, or DMs and cares about tone, boundaries, and privacy. It's for people who've tried ChatGPT for replies and felt it sounded like a stranger pretending to be them.

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.

Smart Reply Pro's answer:

Smart Reply Pro was built by Darko, a solo founder based in Serbia, after every "AI reply" tool he tried sounded like a stranger pretending to be him. He wanted a reply assistant that learns your actual voice, respects your privacy as a foundation rather than a marketing line, and never automates anything on your behalf. So he built it himself โ€” one person reads every bug report, one person reads every refund request, and the privacy promises on the site are the reason the product exists in the first place.

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

Smart Reply Pro's answer:

Based on what's publicly visible: a Next.js web app (the site uses Next.js image optimization) hosted on Vercel, a Chrome extension built on Manifest V3 that works across all sites, HMAC-SHA256 webhook verification for backend integrity, environment-isolated secrets in Vercel, least-privilege database roles, and a PCI-DSS-compliant Merchant of Record handling payments so card data never touches the app directly. GDPR-compliant with Article 33 breach response within 72 hours.

Who are some of the biggest customers of your product?

Smart Reply Pro's answer:

The website doesn't list named enterprise customers (this is an indie product, not an enterprise SaaS), so I'd suggest answering honestly with the customer segments the product serves. Something like:

Short-term rental hosts managing guest inboxes Founders handling investor and customer messages Recruiters running high-volume candidate conversations Customer support teams across SaaS and e-commerce Freelancers managing client communication Sales professionals working deal threads on email and LinkedIn

User comments

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Reviews

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

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)

Smart Reply Pro Reviews

We have no reviews of Smart Reply Pro yet.
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