Software Alternatives, Accelerators & Startups

Google Voice VS ForthWrite

Compare Google Voice VS ForthWrite and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Google Voice logo Google Voice

Google Voice gives you one number for all your phones, voicemail organized in an email format, free...

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
  • Google Voice Landing page
    Landing page //
    2021-09-12
  • 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.

Google Voice

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

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

Google Voice features and specs

  • Cost-effective
    Google Voice provides free calling within the United States and Canada, making it an economical choice for personal and business use.
  • Integrations
    Seamlessly integrates with other Google services, such as Google Calendar, Gmail, and Google Contacts, enhancing productivity.
  • Unified Number
    Allows users to consolidate multiple phone numbers into one, simplifying contact management and ensuring you donโ€™t miss important calls.
  • Voicemail Transcription
    Automatically transcribes voicemails to text, making it easier to read and manage messages.
  • Multi-device Support
    Supports multiple devices including smartphones, tablets, and computers, making it accessible from anywhere.
  • Call Screening
    Offers advanced call screening features that allow users to block unwanted calls and filter spam efficiently.
  • Number Portability
    Allows porting of existing phone numbers into Google Voice, which ensures continuity and saves time.

Possible disadvantages of Google Voice

  • Limited International Calling
    While calls within the U.S. and Canada are free, international calls can be expensive compared to other VoIP services.
  • Dependence on Internet
    Requires a stable internet connection for effective functioning, which may be a limitation in areas with poor connectivity.
  • Delayed Updates
    Google Voice doesnโ€™t receive updates as frequently as some other communication platforms, potentially missing out on new features and enhancements.
  • Privacy Concerns
    As with all Google products, there can be privacy concerns regarding data collection and usage.
  • Limited Customer Support
    Customer support options are limited, often requiring users to rely on community forums or help documents instead of direct assistance.
  • Regional Restrictions
    Not available in all countries, which limits its usability for international travelers or businesses with a global presence.
  • No Emergency Services
    Google Voice cannot be used for emergency calls, which can be a critical limitation in urgent situations.

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 Google Voice

Overall verdict

  • Overall, Google Voice is a reliable and versatile communication tool that is especially beneficial for users who are already entrenched in the Google ecosystem and need a single point of contact that can be managed across multiple devices.

Why this product is good

  • Google Voice is considered good due to its seamless integration with Google's suite of services, offering a free phone number for calls, text messages, and voicemail. It also provides features like call forwarding, voicemail transcription, and spam filtering, which enhance its functionality for personal and professional use.

Recommended for

  • Individuals looking for a free, secondary phone number for privacy or business purposes.
  • Freelancers and small business owners who need a unified communication platform with voicemail transcription.
  • Users who travel frequently and need a flexible solution for making and receiving calls without relying on a single mobile carrier.

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

Google Voice videos

Why I Use Google Voice

More videos:

  • Tutorial - Google Voice Tutorial 2019 - Quick Start
  • Review - Google Voice Review

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Google Voice and ForthWrite)
Communication
100 100%
0% 0
Email
0 0%
100% 100
VoIP
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Google Voice 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 Google Voice 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 Google Voice and ForthWrite

Google Voice Reviews

10 Best Business VoIP Phone Services for Small Businesses (2020)
Google Voice is a flexible business phone service. However, it has fewer options when compared to a fully virtual phone system. Itโ€™s handy for smart phone users and business owners using devices that support Google products.
Source: www.isitwp.com
Compare 5 Best Virtual Phone Number Providers for Your Businesses in 2018
Google voice is a known name in this field which provides call forwarding, dialing and voice-mail services. It was established by Google on March 11, 2009. It provides U.S based telephone number from which the user can choose an arsenal of numbers in their selected locality absolutely free. Almost all calls made from U.S and Canada to each other is free. You can use Google...

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, Google Voice seems to be more popular. It has been mentiond 21 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.

Google Voice mentions (21)

  • Ask HN: I want to use two phones with one SIM
    Set up Google Voice so all calls are forwarded to both phones. https://voice.google.com/about. - Source: Hacker News / almost 2 years ago
  • Need help with phone bill
    If you can post this you can use https://voice.google.com/about . Call them and tell them , you need to wait to the next pay day to pay your phone bill and be able to accept text messages. Source: about 3 years ago
  • Iโ€™m frustrated with GV, calling issues
    Have you tried connecting via the Google Voice website on a PC to see if you're having the same issues? Source: about 3 years ago
  • What do I do if a cute stranger asks for my number?
    Get yourself a Google voice phone number! Then you can give out that number and have it forward calls to your real number and preserve some anonymity. Source: over 3 years ago
  • Kik is the absolute worst - here's what's better
    You can be completely anonymous by using a google voice number to sign up: https://voice.google.com/about. Source: over 3 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 Google Voice and ForthWrite, you can also consider the following products

RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

ReclaimAI - Helps users prioritize their work and personal calendars

Grasshopper - Grasshopper enables entrepreneurs to build a virtual office that connects callers to employees, wherever they are.

Superhuman - Superhuman is an email management tool.

Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs

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