Software Alternatives, Accelerators & Startups

PlayTennis VS ForthWrite

Compare PlayTennis 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.

PlayTennis logo PlayTennis

PlayTennis helps you find tennis partners, tennis lessons, and book courts in your neighborhood. Connect with players of all levels, see court availability, find tennis coaches near you, join group tennis classes, and enjoy hassle-free tennis matches

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
  • PlayTennis Landing page
    Landing page //
    2026-04-30

Need help finding a tennis partner near you?

Find friends and community with America's fastest growing tennis app - Play Tennis. The Play Tennis app helps users spend more time on the court and less time navigating group chats and groups.

With many ways to play, the Play Tennis app lets users play however they like - from singles ordoubles matches, coaching, group classes like liveball and cardio tennis, or just find a nearby open tennis court.

  • 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.

PlayTennis

Pricing URL
-
$ Details
-
Platforms
-
Release Date
2024 September

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

PlayTennis features and specs

  • Easy Court Booking
    PlayTennis provides a streamlined platform for finding and booking tennis courts, making it convenient for players to reserve court time without the hassle of calling facilities or managing schedules manually.
  • Community Building
    The platform helps connect tennis players with others in their area, fostering a sense of community and making it easier to find hitting partners, join leagues, or participate in local tennis events.
  • Centralized Tennis Management
    PlayTennis serves as a one-stop hub for organizing tennis activities, including scheduling matches, tracking availability, and managing group play, reducing the need for multiple apps or communication channels.
  • Accessibility for All Skill Levels
    The platform is designed to be welcoming for players of varying skill levels, from beginners looking to get into the sport to advanced players seeking competitive matches.
  • Digital Convenience
    By digitizing the tennis experience, PlayTennis eliminates many traditional friction points like phone-based reservations, paper sign-up sheets, and informal group text chains for organizing play.

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 PlayTennis

Overall verdict

  • PlayTennis appears to be a solid option for players seeking structured tennis programs, lessons, and league play, particularly beneficial for those wanting an organized way to improve their game and meet other players in a community setting.

Why this product is good

  • Offers structured programs for various skill levels from beginners to advanced players
  • Provides a way to meet and play with other tennis enthusiasts in your area
  • Combines coaching with social play, making it easier to improve while having fun
  • Flexible scheduling options that can accommodate different lifestyles
  • Helps build consistent playing habits through organized leagues or classes

Recommended for

  • Beginners looking for structured introduction to tennis
  • Intermediate players wanting to improve technique and strategy
  • People seeking a social outlet through sports
  • Players relocating to a new area who want to find a tennis community
  • Those who prefer organized programs over finding matches independently

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 PlayTennis and ForthWrite)
Sport & Health
100 100%
0% 0
Email Productivity
0 0%
100% 100
Sports Clubs
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing PlayTennis 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 PlayTennis and ForthWrite. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

PlayTennis Reviews

We have no reviews of PlayTennis yet.
Be the first one to post

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)

What are some alternatives?

When comparing PlayTennis and ForthWrite, you can also consider the following products

Tennis Board - TennisBoard provides live tennis scores, results, fixtures and ATP & WTA rankings from more than 3000 professional tennis competitions from around the world.

ReclaimAI - Helps users prioritize their work and personal calendars

Matchday Tennis - Tennis team organization and score keeping made simple.

Superhuman - Superhuman is an email management tool.

The Tennis Wizard - The Tennis wizard had come up in the market by adjoining multiple tennis mental training for players. If you are looking to improve your UTR (Universal Tennis Rating), you are on the right platform.

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