Software Alternatives, Accelerators & Startups

CryptoKitties VS ForthWrite

Compare CryptoKitties 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.

CryptoKitties logo CryptoKitties

Breed and collect adorable creatures using Ethereum

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
  • CryptoKitties Landing page
    Landing page //
    2021-10-07
  • 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.

CryptoKitties

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

CryptoKitties features and specs

  • Innovative Blockchain Use
    CryptoKitties introduced many to the concept of Non-Fungible Tokens (NFTs), showcasing how blockchain technology can be used beyond cryptocurrencies by creating unique digital assets.
  • Ownership and Scarcity
    Each CryptoKitty is unique and owned by the player, providing a digital collectible that cannot be replicated, offering true digital ownership and scarcity.
  • Play-to-Earn Mechanics
    Players can potentially earn money by breeding and trading CryptoKitties, as some rare kitties can be sold for significant amounts of money.
  • Educational Value
    The game serves as an educational tool for blockchain technology, helping users to understand and appreciate the concept of decentralized applications and smart contracts.
  • Vibrant Community
    CryptoKitties has a large and engaged community, which creates a lively market and social environment for players to interact and trade.

Possible disadvantages of CryptoKitties

  • High Gas Fees
    Because CryptoKitties is built on the Ethereum blockchain, users often face high gas fees, especially during times of network congestion, which can make transactions expensive.
  • Market Volatility
    The value of CryptoKitties is subject to extreme market fluctuations, making it a risky investment as prices for digital kitties can vary widely over short periods.
  • Speculative Nature
    The game's emphasis on trading and breeding for profit can lead to a speculative environment, where the focus shifts from enjoyment to financial gain.
  • Environmental Concerns
    The reliance on Ethereum means that CryptoKitties contribute to the environmental impact associated with high energy consumption of Proof-of-Work blockchains.
  • Complexity for New Users
    New users may find the process of buying, trading, and understanding the genetic algorithms of CryptoKitties complex, which can be a barrier to entry.

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 CryptoKitties

Overall verdict

  • CryptoKitties is generally considered a good introduction to the concept of NFTs and blockchain gaming. It was groundbreaking when first released and continues to offer an engaging experience for those interested in the mechanics of digital scarcity and collectibility. However, like many blockchain projects, it remains niche and may not appeal to everyone, especially those uninterested in digital collectibles or unfamiliar with cryptocurrency concepts.

Why this product is good

  • CryptoKitties is one of the pioneering blockchain-based games that introduced the concept of non-fungible tokens (NFTs) to a broad audience. It allows users to buy, breed, and sell virtual cats, each with unique attributes. This game showcases the potential of blockchain technology in creating and managing digital assets, providing entertainment while also offering players a chance to engage in a digital economy. It has garnered a community of collectors and enthusiasts interested in digital collectibles and blockchain applications.

Recommended for

  • Individuals interested in exploring blockchain technology and NFTs.
  • Collectors who enjoy engaging with and trading digital assets.
  • Gamers looking for unique gaming experiences outside traditional platforms.
  • Tech enthusiasts eager to understand the application of blockchain in gaming.

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

CryptoKitties videos

CRYPTOKITTIES| CryptoKitties Review: CryptoKitty - Beginners Guide

More videos:

  • Tutorial - How to Play CryptoKitties - Review and Walkthrough ๐Ÿ˜ป๐Ÿ˜ป๐Ÿ˜ป
  • Review - CryptoKitties Exposed 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 CryptoKitties and ForthWrite)
Crypto
100 100%
0% 0
Email
0 0%
100% 100
Cryptocurrencies
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing CryptoKitties 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 CryptoKitties 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 CryptoKitties and ForthWrite

CryptoKitties Reviews

Top 5 NFT Games Aside from Axie Infinity | Crypto Game
This was one of the earliest blockchain games invented. The game allows users to breed and collect virtual kittens on the Ethereum blockchain. For those that might want to compare this with Axie Infinity, well, CryptoKitties remains extremely popular hitting $30,000 in daily sales according to the data coming from NonFungible.
Top 7 NFT Games That You Can Play to Win Crypto
CryptoKitties was one of the earliest blockchain games in existence. The game allows players to collect and breed virtual kittens that โ€œliveโ€ on the Ethereum blockchain. Players can sell CryptoKitties on the platformโ€™s marketplace or on leading NFT marketplaces.
Top 5 Most Popular NFT Games in 2021
The NFT rave all began with CryptoKitties in 2017 and looking at their numbers, it is safe to say they are not slowing down anytime soon. The platform still records up to $30K worth of daily transactions and more than 800 new users weekly.
Source: trustwallet.com

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, CryptoKitties seems to be more popular. It has been mentiond 5 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.

CryptoKitties mentions (5)

  • I bought a CryptoKittie over 1000 days ago... Need help.
    I'm almost certain that if you know metamask and you bought them around that time you purchased them by just going to cryptokitties.co with the chrome metamask extension installed with the default wallet (I know because that is how I did it, it was the path of least resistance). Source: about 4 years ago
  • 20 play-to-earn blockchain games that really earn crypto rewards!
    Https://cryptokitties.co โ€“ Crypto Kitties โ€“ Collect and breed digital cats. โ€œCryptoKitties is a game centered around breedable, collectible, and oh-so-adorable creatures we call CryptoKitties!โ€. Source: over 4 years ago
  • Hi guys
    I can't purchase any Kitties on OpenSeas, it's giving me some gas error, while on cryptokitties.co it's showing this error:. Source: almost 5 years ago
  • Dapper Labs - Part of the 'Changing the world with Blockchain' series
    During the first blockchain craze of 2017, Dapper Labs released CryptoKitties. CryptoKitties is a blockchain based game where you are able to collect, and have true ownership of, virtual kitties. Each kitty has unique traits that allow for rarity levels within the game. In addition to rarity levels, if you own two or more cats you have the option of 'breeding' them. Once you breed two kitties together that will... - Source: dev.to / almost 5 years ago
  • Down the Rabbithole: Why is Gamestop creates NFT Assets?
    Etherscan.co use their default email address for contact forms as [johndoe@cryptokitties.com](mailto:johndoe@cryptokitties.com). CryptoKitties.com simply 301 redirects to cryptokitties.co. 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 CryptoKitties and ForthWrite, you can also consider the following products

CryptoFighters - Collect, train and battle with unique fighters with Ethereum

ReclaimAI - Helps users prioritize their work and personal calendars

1inch - A userโ€‘friendly wallet as an entry point to DeFi

Superhuman - Superhuman is an email management tool.

Shake Pay - Mobile bitcoin debit card

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