Software Alternatives, Accelerators & Startups

Koinly VS ForthWrite

Compare Koinly 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.

Koinly logo Koinly

Koinly is the easiest way to monitor your crypto activity & file your taxes.

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.
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  • Koinly Landing page
    Landing page //
    2021-10-12

Koinly is a cryptocurrency calculator trusted by crypto investors in over 20 countries. Koinly integrates with 700+ exchanges, blockchains, and wallets to give investors an easy and accurate way to track their crypto transactions in one place. From here, Koinly calculates the total capital gains and income an investor has derived from their crypto in any financial year.

  • 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.

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

Koinly features and specs

  • User-Friendly Interface
    Koinly offers an intuitive and easy-to-navigate interface, making it accessible for both novice and experienced crypto investors.
  • Comprehensive Transaction Tracking
    The platform supports a wide range of cryptocurrencies and integrates with numerous exchanges and wallets, allowing for detailed transaction tracking.
  • Tax Reporting
    Koinly provides automated tax reports that comply with the regulations in various countries, simplifying the process of filing crypto taxes.
  • Accurate Calculations
    Koinly uses advanced algorithms to accurately calculate gains, losses, and income from your crypto activities.
  • Excellent Customer Support
    Users generally report positive experiences with Koinly's customer support, which is responsive and helpful.
  • Portfolio Insights
    The platform offers valuable insights into your crypto portfolio, including detailed analytics and performance tracking.

Possible disadvantages of Koinly

  • Cost
    While Koinly offers a free plan, advanced features and comprehensive reporting require a paid subscription, which might be expensive for some users.
  • Limited Free Plan
    The free plan has limitations on the number of transactions it can handle, which may not be sufficient for active traders.
  • Complex Transactions
    Some users have reported that the platform struggles with the accurate categorization and calculation of more complex transactions, such as DeFi activities.
  • Privacy Concerns
    Some users may be concerned about providing access to their exchange and wallet data, which involves sharing sensitive financial information with a third-party service.
  • Data Sync Issues
    Occasionally, there are reports of synchronization issues where data from exchanges or wallets doesn't update correctly or promptly.
  • Learning Curve for Detailed Features
    While basic features are user-friendly, some of the more advanced tools and customization options might have a steeper learning curve.

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 Koinly

Overall verdict

  • Overall, Koinly is considered a reliable and efficient tool for managing cryptocurrency taxes. It is well-suited for individuals who seek an automated solution to handle their crypto tax responsibilities and wish to ensure compliance without hassle.

Why this product is good

  • Koinly is often regarded as a good cryptocurrency tax software due to its user-friendly interface, comprehensive support for a wide range of exchanges and wallets, and its ability to generate tax reports compliant with various countries' regulations. It automates the tedious process of tracking transactions, calculating gains and losses, and preparing necessary tax documents. Additionally, it supports multiple currencies and offers detailed features that cater to both casual investors and professional traders.

Recommended for

  • Cryptocurrency investors seeking an easy-to-use tax solution
  • Frequent traders needing comprehensive transaction tracking
  • Individuals looking for a software compatible with various international tax jurisdictions
  • Users who want to automate their tax reporting process

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

Koinly videos

Rippleโ€™s Shareholder SBI Invest in QIWI. Ripple Unleashes 1B XRP. Koinly to Add Support for XRP!

More videos:

  • Review - Koinly Review - Paying Taxes on Crypto The Easy Way
  • Review - Koinly Review: The BEST for Crypto Taxes?

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Koinly and ForthWrite)
Cryptocurrencies
100 100%
0% 0
Email
0 0%
100% 100
Crypto
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Koinly 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 Koinly 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 Koinly and ForthWrite

Koinly Reviews

Best Cryptocurrency Tax Software: Complete Guide to the Top Options
The automated data import is available via either an API exchange connection or by adding cryptocurrency wallet addresses. Data on margin trading, futures trading, staking, lending and DeFi can also be imported. An interesting feature is Koinlyโ€™s smart transfer matching, which leverages an artificial intelligence system to detect transfers that are made between your personal...
Source: blockonomi.com
14 Best Crypto Tax Software to Ease Your Calculation and Be Compliant
Koinly has a very generous free subscription that permits up to 10,000 transactions with lots of additional features. It supports the usual FIFO, LIFO, average cost basis, etc., for tax accountancy.
Source: geekflare.com
15 Best Koinly Alternatives 2022
As the name suggests, CryptoTax Calculator provides easy-to-understand tax calculations with customizable rules to support your unique tax needs. CryptoTax Calculator is an excellent Koinly substitute that does a better job than Koinly in giving powerful and accurate tax reports.

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, Koinly seems to be more popular. It has been mentiond 306 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.

Koinly mentions (306)

  • Tax Question. If i buy $1000 worth of crypto and sell 50% on a double and then let the balance ride. Am i exempt from paying tax on that transaction?
    Every transaction you make with crypto is a taxable event. Even buying something with your bitcoin is a taxable event. So instead of looking at your balance, you have to look at each and every transaction and see how much you paid for the asset, how much you sold it for, and how long you held it. The ATO will also want a report on your crypto transactions, which you can get from koinly.io. That will also... Source: over 2 years ago
  • 48-nation bloc to crack down on using crypto assets to avoid tax
    Https://koinly.io/ is a popular recommendation here in Denmark. Denmark may have the worst possible taxation for crypto: every time you sell, use or convert your crypto, that's an event where you have to calculate your gains or losses. Gains are taxed like personal income (so up to 53% tax), but losses can only be deducted at 26% they do not offset the gains directly. A school teacher speculating in crypto ended... - Source: Hacker News / over 2 years ago
  • Questions about defi
    -is it possible to track swaps and trades I'm making in defi via koinly.io or another tax tracking provider? I want to take advantage of long term capital gains vs short term whenever possible. Source: about 3 years ago
  • I made around 90K profit from a meme coin (crypto)recently and Iโ€™m 18 years old and have no idea how to go about taxes. Please help me . Also what could I do with my profits ?
    Every trade where you go from 1 coin to another is a capital gains event. Take a look into https://koinly.io/ to calculate it for you. Source: about 3 years ago
  • Staked ETH Rewards on Coinbase
    I just bit the bullet and pay koinly.io to do it for me. The one thing I like about it is you can tag staked transaction (eth to eth2) as swaps so they don't show up on your taxes. It's actually free until you want them to generate a tax form for you. Source: about 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 Koinly and ForthWrite, you can also consider the following products

CoinTracker - The most trusted cryptocurrency tax and portfolio manager

ReclaimAI - Helps users prioritize their work and personal calendars

CoinTracking - All Coins, all Analyzes, all Calculations, all Charts and all Prices for Bitcoin, Litecoin...

Superhuman - Superhuman is an email management tool.

Coinpanda - Calculate & file tax reports for Bitcoin and cryptocurrencies. Made for traders and investors.

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