Software Alternatives, Accelerators & Startups

Nansen VS ForthWrite

Compare Nansen VS ForthWrite and see what are their differences

Nansen logo Nansen

Blockchain analytics platform to identify rare opportunities

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
  • Nansen Landing page
    Landing page //
    2023-08-03
  • 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.

Nansen

Website
nansen.ai
$ Details
-
Platforms
-
Release Date
-

ForthWrite

$ Details
freemium $12 / 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

Nansen features and specs

  • Comprehensive Analytics
    Nansen offers a wide array of analytics tools that provide detailed insights into blockchain transactions, enhancing data-driven decision-making for investors and analysts.
  • Real-Time Data
    Nansen offers real-time data on blockchain transactions, which is critical for timely decision-making in the fast-paced cryptocurrency market.
  • User-Friendly Interface
    The platform has an intuitive and user-friendly interface, making it accessible even for those who may not be highly experienced in blockchain technology.
  • Extensive Data Coverage
    Nansen supports a variety of blockchains and tokens, providing broad coverage and making it a one-stop-shop for blockchain analytics.
  • Customizable Alerts
    Users can set up customizable alerts for various events such as significant transactions or price movements, enabling proactive portfolio management.

Possible disadvantages of Nansen

  • Cost
    Nansen's advanced features and real-time analytics come at a high price, which may be prohibitive for individual investors or small enterprises.
  • Complexity
    While the interface is user-friendly, the sheer volume of data and analytics options can be overwhelming for beginners, requiring a steep learning curve.
  • Limited Free Access
    The platform offers limited access to its features for free users, restricting the ability to fully evaluate the service without a paid subscription.
  • Data Overload
    Given the comprehensive nature of the analytics provided, users might experience information overload, making it challenging to focus on actionable insights.
  • Dependence on Third-Party Data
    Nansen relies on data from various blockchains and external sources. Any inaccuracy or delay in this data could impact the reliability of the analytics provided.

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 Nansen

Overall verdict

  • Overall, Nansen is considered a valuable tool for those actively involved in the cryptocurrency space, offering actionable insights and reliable data. However, whether it is 'good' or not depends on your specific needs, budget, and level of expertise. For professional traders and institutional investors, Nansen is often seen as a worthwhile investment.

Why this product is good

  • Nansen is a blockchain analytics platform that provides deep insights into on-chain data. It aggregates wallet information and transactions to help users understand the movements and behaviors within the cryptocurrency and DeFi ecosystems. The platform is often praised for its user-friendly interface, detailed analytics, and extensive data coverage, making it valuable for traders, investors, and researchers who need to gain a competitive edge in the fast-evolving crypto market.

Recommended for

    Nansen is recommended for crypto traders, investors, DeFi enthusiasts, hedge funds, analysts, and anyone looking to gain deeper insights into blockchain activities and trends. Novices might find the platform a bit overwhelming, but it is highly beneficial for those who are serious about leveraging blockchain data for strategic decisions.

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

Nansen videos

Nansen Review: Should NFT Buyers Use It?

More videos:

  • Review - Use Nansen to Discover New DeFi & NFT Opportunities
  • Tutorial - How to use Nansen AI (TUTORIAL)

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Nansen 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 Nansen 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 Nansen and ForthWrite

Nansen Reviews

We have no reviews of Nansen 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, Nansen seems to be more popular. It has been mentiond 4 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.

Nansen mentions (4)

  • Wallet Analytics Explained: Common Problems and Solutions
    Moreover, enhancing privacy while maintaining data utility is critical. As the landscape evolves, implementing secure protocols will ensure that user identities remain protected without sacrificing the richness of analytics. Addressing these challenges will enable teams to leverage real-time data more effectively, fostering a robust analytical framework that supports informed decision-making in the Web3 space.... - Source: dev.to / 5 months ago
  • Shady Promotion
    We are pleased to show our Proof of Reserves through our Nansen.ai dashboard (https://portfolio.nansen.ai/dashboard/bybit), while we continue to work on other solutions such as the Merkel Tree, which will be viewable at a more granular level, by UID. Source: over 3 years ago
  • Using Etherscan data to make smarter decisions and complete data challenges!
    Now, if you're savvy with Excel, know a bit of coding, and can make sense of on-chain data. Great! You're probably part of the 3% of Web3 participants that can instantly gain an edge by putting in a few hours of work. What about the rest? You can turn towards tools like Nansen, a subscription-based data platform or access valuable crypto datasets from decentralized data marketplaces like Ocean Protocol. Source: almost 4 years ago
  • Discord and website links (monthly recurring)
    If you're new to r/NansenAI, our website is nansen.ai and our official Nansen Discord server invite is https://www.nansen.ai/discord. Source: over 4 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 Nansen and ForthWrite, you can also consider the following products

Dune Analytics - 675 million+ members | Manage your professional identity. Build and engage with your professional network. Access knowledge, insights and opportunities.

ReclaimAI - Helps users prioritize their work and personal calendars

CoinGecko - CoinGecko is a free to use web-based and mobile application that provides financial market data for more than 2000 digital currencies.

Superhuman - Superhuman is an email management tool.

Messari - Crypto's trusted data source

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