Software Alternatives, Accelerators & Startups

Flattr VS ForthWrite

Compare Flattr 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.

Flattr logo Flattr

Help the open and free web flourish. Support creators by paying for their free content.

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.
  • Flattr Landing page
    Landing page //
    2023-07-21
  • 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.

Flattr

Website
flattr.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
Sweden
City
Malmรถ
Employees
1 - 9

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

Flattr features and specs

  • Microdonations
    Flattr allows users to make small, recurring donations (microdonations) to support creators, making it easier for fans to contribute without committing large sums of money.
  • Automated Contributions
    Users can set a monthly budget for contributions, and Flattr automatically distributes the budget based on user's browsing habits and the content they consume.
  • Diverse Creator Support
    Flattr supports a wide range of creators including bloggers, podcasters, software developers, and more, allowing users to support a variety of digital content creators.
  • Integration with Browsers
    Flattr offers browser extensions that track the user's web activity and make it easy to flatter the content they engage with.
  • Transparency
    Flattr provides clear and transparent financial distributions so users and content creators can see exactly where the money goes.

Possible disadvantages of Flattr

  • User Adoption
    Although Flattr offers a unique way to support creators, it may struggle with broad user adoption compared to more mainstream crowdfunding platforms.
  • Privacy Concerns
    Some users may be concerned about the privacy of their browsing data since Flattr's model involves tracking users' online activity to determine how funds are distributed.
  • Creator Payout Threshold
    Creators must reach a minimum payout threshold before they can access their funds, which may be a barrier for those with smaller audiences.
  • Fee Structure
    Flattr takes a percentage of the contributions as a service fee, which could be seen as a drawback for both users contributing money and creators receiving it.
  • Limited Awareness
    Flattr is not as well-known as other crowdfunding or donation platforms, which could limit its potential user base and adoption rate.

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 Flattr

Overall verdict

  • Flattr can be a good choice for both content creators and supporters if there is alignment with its purpose and features. For creators, it offers an additional revenue stream and a more direct connection with their audience. For supporters, it's an easy way to financially thank creators for their work. However, its effectiveness depends on the size of the audience willing to use Flattr and the platform's integration with the creators' distribution channels.

Why this product is good

  • Flattr is a microtransaction service that allows users to tip and donate small amounts of money to content creators, websites, and projects they support. It enables creators to receive financial support directly from their audience, which can be particularly beneficial for independent creators, developers, and small-scale projects. By using Flattr, supporters can easily contribute to the sustainability of the content and projects they appreciate.

Recommended for

  • Independent content creators looking for an additional revenue stream.
  • Consumers who want to financially support creators they admire.
  • Projects or websites seeking micro-donations to sustain their efforts.

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

Flattr videos

This is Flattr

More videos:

  • Review - Checking out Flattr - What is it?!
  • Review - About Issues with TPB & Flattr (Peter Sunde, Co-Founder, The Pirate Bay & Flattr)

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Flattr and ForthWrite)
Crowdfunding
100 100%
0% 0
Email
0 0%
100% 100
Fundraising And Donation Management
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Flattr 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 Flattr 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 Flattr and ForthWrite

Flattr Reviews

We have no reviews of Flattr 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)

Social recommendations and mentions

Based on our record, Flattr seems to be more popular. It has been mentiond 11 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.

Flattr mentions (11)

  • Few Americans pay for news when they encounter paywalls
    Https://flattr.com/ used to have such a system without the cryptocurrency nonsense and it went about as far as you'd expect. On the other hand, it didn't falsely claim your funds were going to creators, so in that sense they're still a better alternative than whatever the hell Brave seems to be doing. I don't know why, but Brave's cryptocurrency doesn't even work in my country. Whatever regulation they're afraid... - Source: Hacker News / about 1 year ago
  • EU NGI TALER will bring private and secure online payments to the Eurozone
    Flattr was a kind of a version of that (although billed as "donations"), and it recently shut down. https://flattr.com/. - Source: Hacker News / over 2 years ago
  • Paying Netflix $0.53/H, etc.
    There was https://flattr.com/ and, more recently, https://twitter.com/coil But, yes, a complete chicken-and-egg problem. - Source: Hacker News / over 2 years ago
  • Ask HN: Startup ideas that you'll never do?
    I think Flattr does exactly this https://flattr.com/ but it looks like they may have changed their business model recently. - Source: Hacker News / about 3 years ago
  • Show HN: StackAid โ€“ fund 100s of open source dependencies with one subscription
    This kind of looks like https://flattr.com/ but specifically for dev/dependencies. Not sure I like that there's "only" a two-month limit in which funds can be claimed, though. Some developers could be very busy or get caught up with other stuff and not hear about their accumulated funds before the "expire". Some might also think it's a phishing scam if they haven't heard of StackAid before. - Source: Hacker News / almost 4 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 Flattr and ForthWrite, you can also consider the following products

Liberapay - Liberapay is a recurrent donations platform.

ReclaimAI - Helps users prioritize their work and personal calendars

Patreon - Patreon enables fans to give ongoing support to their favorite creators.

Superhuman - Superhuman is an email management tool.

Ko-fi - Ko-fi offers a friendly way for content creators to get paid for their work.

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