Software Alternatives, Accelerators & Startups

Explaindio VS ForthWrite

Compare Explaindio VS ForthWrite and see what are their differences

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Explaindio logo Explaindio

Explaindio is an animation, doodle sketch, and motion video creation software.

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
  • Explaindio Landing page
    Landing page //
    2023-05-09
  • 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.

Explaindio

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

Explaindio features and specs

  • User-Friendly Interface
    Explaindio offers an intuitive interface that is easy for users of all skill levels to navigate, reducing the learning curve for new users.
  • Versatile Animation Tools
    The software provides a wide range of animation tools, including 2D and 3D animations, whiteboard sketches, and explainer videos, making it versatile for various video creation needs.
  • Extensive Asset Library
    Explaindio includes a comprehensive library of pre-designed templates, audio tracks, and images that users can incorporate into their projects, saving time on content creation.
  • Affordable Pricing
    Compared to other video creation tools, Explaindio offers a competitive pricing model that appeals to small businesses and individual creators.
  • Regular Updates
    The platform frequently updates its features and content library, keeping users equipped with the latest tools and media assets.

Possible disadvantages of Explaindio

  • Occasional Software Bugs
    Users have reported encountering occasional bugs and stability issues, which may disrupt workflow and require software restarts.
  • Limited Audio Editing
    The platform's audio editing capabilities are relatively basic, limiting users who require advanced audio features or integrations.
  • Learning Curve for Advanced Features
    While basic features are easy to grasp, mastering advanced techniques and tools may require additional time and practice for some users.
  • Rendering Speed
    The rendering speed for video projects can be slower compared to other video creation tools, which may affect productivity for users working with tight deadlines.
  • Customization Limitations
    Some users find the customization options for templates and assets to be limited, impacting the ability to create highly unique videos.

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 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

Explaindio videos

Explaindio Video Bundle 2020 Review

More videos:

  • Review - EXPLAINDIO REVIEW from a Video Maker Fx and Easy Sketch Pro User
  • Demo - Explaindio 4.0 Review Demo - Explainer And Whiteboard Animation Video Creator

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Explaindio and ForthWrite)
Video Maker
100 100%
0% 0
Writing Tools
0 0%
100% 100
Video
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Explaindio 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 Explaindio 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 Explaindio and ForthWrite

Explaindio Reviews

  1. Krunal Misal
    Great App and easy to use

    It's fantastic and well worth the money; I used it on my YouTube channel to demonstrate various tasks and demonstrate how to do them, and I enjoyed the app. There are also many sketches there that you can use in your presentation, but the problem is that it does not support Arabic, so I had to use another app to save the typing as SVG and use it on the Explaindio app.


Best Whiteboard Animation Software in 2022
Explaindio is a simple drag-and-drop video maker that allows you to quickly create whiteboard animation videos. It can also make full-motion videos, explainer videos, doodles, and other types of videos. It comes with desktop software for Mac and Windows, allowing you to create videos even when youโ€™re not connected to the internet. It also allows you to make, edit, and export...

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 Explaindio and ForthWrite, you can also consider the following products

VideoScribe - Make your own whiteboard video animations with Sparkol VideoScribe โ€“ย award-winning video scribing app for PC, Mac and iPad. Free trial available.

Superhuman - Superhuman is an email management tool.

Doodly - Create your own doodle video in just 60 seconds

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

The Draw Shop - The Draw Shop is a drawing and whiteboard animated video maker software solution that comes with lots of new features and tools.

Lavender - Realtime coaching for sales emails.