Software Alternatives, Accelerators & Startups

Google Flights VS ForthWrite

Compare Google Flights VS ForthWrite and see what are their differences

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Google Flights logo Google Flights

Find cheap flights in seconds, explore destinations on a map, and sign up for fare alerts on Google Flights.

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 Flights Landing page
    Landing page //
    2023-06-15
  • 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 Flights

Website
google.com
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 Flights features and specs

  • Comprehensive Search
    Google Flights aggregates data from various airlines and travel agencies, offering a wide range of options in one search.
  • Price Tracking
    Users can track prices for specific routes and receive email notifications when prices drop, helping to find the best deals.
  • Speed and Usability
    The website is designed for speed and ease of use, allowing for quick searches and filters that enhance the user experience.
  • Flexible Date Search
    Users can view prices across multiple dates, helping them to choose the cheapest or most convenient options.
  • Explore Map
    The Explore Map feature allows users to see destination options within their budget and interest areas, making it easier to plan spontaneous trips.

Possible disadvantages of Google Flights

  • Limited Booking Options
    Google Flights redirects users to third-party sites for booking, which may lead to inconsistencies in pricing and availability.
  • No Direct Customer Support
    As a search aggregator, Google Flights does not offer direct customer support, potentially complicating issue resolution.
  • Region-Specific Limitations
    Some regions and smaller airlines might not be well-represented, affecting the comprehensiveness of the search results.
  • Additional Fees
    Price listings on Google Flights may not include baggage fees, seat selection fees, or other surcharges, potentially leading to higher overall costs.
  • Privacy Concerns
    Tracking flights and prices may require users to log in with their Google account, raising concerns about data privacy and usage.

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 Flights

Overall verdict

  • Yes, Google Flights is generally regarded as a good and reliable tool for booking flights, owing to its extensive features and ease of use.

Why this product is good

  • Google Flights is widely considered a good flight search tool due to its user-friendly interface, comprehensive search capabilities, and advanced features. It provides real-time pricing, flexible filters for layovers, duration, and airline preferences, and an easy-to-use calendar view for comparing prices over time. It also offers notifications for price changes and insights on whether to book now or wait.

Recommended for

  • Travelers looking for the best flight deals.
  • People with flexible travel dates.
  • Users who want to compare prices across multiple airlines quickly.
  • Those who appreciate a clean, intuitive interface and extra features like price tracking.

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 Flights videos

How to Find Cheap Flights | Google Flights Review

More videos:

  • Tutorial - How to Use Google Flights AND Why You Should Use Google Flights vs other Travel Sites
  • Tutorial - How to Book Cheap Airline Tickets (Using Google Flights + 4 Tips)

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 Flights and ForthWrite)
Travel
100 100%
0% 0
Writing Tools
0 0%
100% 100
Travel & Tourism
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Google Flights 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 Flights 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 Flights and ForthWrite

Google Flights Reviews

13 Best Skyscanner Alternatives to Book Travel
The Google search bar makes it easy to search for flights and compare prices on different dates and airports near your location. Although Google Flights is a great Skyscanner alternative, it is limited to flights only and does not offer other services such as hotels and travel packages.
17 Best Skyscanner Alternatives Sites
It almost feels like cheating, but Google has access to pretty much all the best flight deals from all the best travel sites. That means you can save time and money in one fell swoop when you type your desired flight parameters into the search bar or hit up Google Flights directly. Letโ€™s be honest, itโ€™s probably what you were going to do in the first place.
Source: manofmany.com
The 9 Best Skyscanner Alternatives To Book Cheap Travel
Skyscanner is probably my second favorite place to find deals. They will have the deals being shown with the airlines, but Skyscanner will show the deals from the OTAs. To get a great idea of where to find the best flights, going to Google flights can light up your world.
Third Party Airfare Booking Sites: The Power Rankings - who to trust, who to avoid
Some of my favorite sites you may have seen me bring up time and time again over the years, such as Google Flights or Kayak are not third party booking sites. They are what are known as meta-search sites, which means they search multiple third party booking sites, and then send you to one of them, and that third party site is in control of your booking.

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 Flights seems to be more popular. It has been mentiond 20 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 Flights mentions (20)

  • Google Blog on DMA
    Https://google.com/hotels Is what I'm assuming they're talking about? Also https://google.com/flights I use flights all the time. I think mostly because I've not found any of the intermediaries all that good. Google flights provides links to multiple places to buy. Usually I click the link directly to the airline. I've looked at hotels but rarely use it. Hotel websites, unless they're a major chain, are often... - Source: Hacker News / over 2 years ago
  • Built a ChatGPT Flight Search App
    Seems to be very similar with the maps feature of https://google.com/flights. Any notable features or improvements? Source: about 3 years ago
  • What has been the favorite invention of your lifetime?
    Between docs, sheets, and google.com/flights, my life is so much better than it was during the IE/Netscape and Microsoft Office install days. Source: about 3 years ago
  • My Giga List of Top Travel Hacks
    Another thing Iโ€™d add is to use free sites like Google Flights or PlanMoreTrips to set cheap flight alerts from your home airport. Saved me quite a bit on random flights. Source: over 3 years ago
  • Best website for domestic flights? Is supersaver reliable?
    Google.com/flights, then buy directly with the airline. 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 Flights and ForthWrite, you can also consider the following products

Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.

Superhuman - Superhuman is an email management tool.

KAYAK - KAYAK is a travel search engine that searches hundreds of other travel sites at once. Our helpful tools & features find you the information you need to make the right decisions on flights, hotels, rental cars and vacation packages.

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.

Momondo - Find cheap flights with Momondo.

Lavender - Realtime coaching for sales emails.