Software Alternatives, Accelerators & Startups

Must App VS ForthWrite

Compare Must App VS ForthWrite and see what are their differences

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Must App logo Must App

Your personal movie assistant

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
  • Must App Landing page
    Landing page //
    2021-09-18
  • 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.

Must App

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

Must App features and specs

  • User-Friendly Interface
    The application has an intuitive and visually appealing interface that makes it easy for users to navigate and find content effortlessly.
  • Personalized Recommendations
    Must App offers personalized movie and TV show recommendations based on user preferences and viewing history, enhancing the overall user experience.
  • Comprehensive Database
    The app features a comprehensive database of movies and TV shows, ensuring that users can find information on a wide range of titles.
  • Social Features
    Must App allows users to connect with friends, share recommendations, and see what others are watching, adding a social element to the experience.
  • Tracking and Wishlists
    Users can track what they have watched and create wishlists for movies and TV shows they want to see, helping them stay organized.
  • High-Quality Visuals
    The app provides high-quality visuals and trailers, giving users a better preview of the content they are interested in.

Possible disadvantages of Must App

  • In-App Purchases
    Some features and content may require in-app purchases, which could be a downside for users looking for a completely free experience.
  • Advertisements
    The presence of advertisements can interrupt the user experience, making it less enjoyable for some users.
  • Limited Availability
    The app may not be available in certain regions or on all devices, restricting access for some potential users.
  • Privacy Concerns
    As with any app that collects user data for personalization, there may be concerns regarding how personal information is handled and stored.
  • Dependence on Internet Connection
    The app requires a stable internet connection to access its full range of features, which could be a limitation for users with poor connectivity.

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 Must App

Overall verdict

  • Overall, Must App is considered a good choice for movie and TV enthusiasts who enjoy exploring new content and keeping their viewing habits organized. Its user-friendly design and personalized recommendations contribute positively to the user experience.

Why this product is good

  • Must App is designed to help users discover and track movies and TV shows they are interested in. It offers a streamlined and visually appealing interface, making it easy to browse through various categories, receive recommendations, and keep a watchlist. The app also integrates social features, allowing users to see what their friends are watching, which adds a community aspect to the experience.

Recommended for

  • Movie enthusiasts looking for a reliable way to track what they watch.
  • Viewers interested in receiving personalized content recommendations.
  • Users who appreciate a visually appealing and intuitive app interface.
  • Individuals who enjoy engaging with a community of like-minded entertainment fans.

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

Category Popularity

0-100% (relative to Must App and ForthWrite)
Movie Reviews
100 100%
0% 0
Writing Tools
0 0%
100% 100
Entertainment
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Must App 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 Must App and ForthWrite

Must App Reviews

We have no reviews of Must App yet.
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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, Must App 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.

Must App mentions (2)

  • MUST App Sync ADDON
    I'm really into movies and tv series that recently to keep track and rate them I've found this really well done app called MUST. I think its pretty famous right now, but if you don't know it I hardly recommend it to use. https://mustapp.com. Source: over 4 years ago
  • How can I get url routes for a episode of a series on various streaming services like Netflix, Primevideo etc?
    Also check out mustapp, I doubt they have direct relationship with these services. 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 Must App and ForthWrite, you can also consider the following products

Reelgood - Every streaming service in one place, from over 300 free and paid streaming services. Browse, track and watch all your TV shows and movies from one place.

ReclaimAI - Helps users prioritize their work and personal calendars

Ketchup โ€“ TV Show Schedule - Ketchup โ€“ TV Show Schedule app helps you in adding TV shows and movies to the following list to receive updates and reminders about the airing time of each show so you can manage your schedule.

Superhuman - Superhuman is an email management tool.

TMDb Movies & TV Shows - TMDb Movies & TV Shows app assists you in tracking all your favorite movies right on your mobile phone screen in order to watch them.

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