Software Alternatives, Accelerators & Startups

Prisma VS ForthWrite

Compare Prisma VS ForthWrite and see what are their differences

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Prisma logo Prisma

Art filters using artificial intelligence to transform your photos into classic artwork.

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
  • Prisma Landing page
    Landing page //
    2023-05-11
  • 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.

Prisma

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

Prisma features and specs

  • High-Quality Filters
    Prisma offers a variety of artistic filters that can turn ordinary photos into works of art, mimicking styles of famous artists.
  • User-Friendly Interface
    The app features an intuitive and easy-to-navigate interface, making it accessible for users of all experience levels.
  • Regular Updates
    Prisma provides regular updates to keep the app fresh and secure, often releasing new filters and features.
  • Cross-Platform
    Available on both iOS and Android platforms, allowing a wider range of users to enjoy its features.
  • Social Media Integration
    Prisma allows easy sharing to social media platforms, making it convenient for users to showcase their edited photos.

Possible disadvantages of Prisma

  • Performance Issues
    Some users report that the app can be slow, especially when applying more complex filters.
  • Subscription Model
    While Prisma offers a free version, access to premium filters and features requires a subscription, which might not be suitable for all users.
  • High Data Usage
    The app can consume a lot of data, especially when downloading new filters or uploading high-resolution photos.
  • Limited Offline Functionality
    Most of Prismaโ€™s features require an internet connection, which can be a limitation in areas with poor connectivity.
  • Privacy Concerns
    As with many photo apps, there are concerns about data security and how user images are stored and used.

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 Prisma

Overall verdict

  • Prisma is highly recommended for its innovative approach to photo editing, offering a mix of artistry and technology. Users appreciate its ability to transform ordinary photos into creative images, demonstrating the effectiveness of its AI algorithms.

Why this product is good

  • Prisma, offered at prisma-ai.com, is known for its powerful AI-driven tools and services that cater to users looking for advanced photo editing capabilities. The platform provides intuitive features that help enhance images with style and precision. Its user-friendly interface and range of customization options make it accessible for both beginners and experienced users.

Recommended for

  • Photographers looking for advanced editing tools
  • Artists interested in experimenting with digital transformations
  • Social media enthusiasts who want unique visual content
  • Designers seeking inspiration and new creative outputs

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

Prisma videos

PRISMA 2020: updated guidelines for reporting systematic reviews and meta-analyses

More videos:

  • Review - PRISMA GUIDELINES FOR SYSTEMATIC REVIEW and META-ANALYSIS
  • Review - PRISMA Methods Systematic Review of Diagnostic Studies

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Prisma and ForthWrite)
Digital Drawing And Painting
Email
0 0%
100% 100
Image Editing
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Prisma 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 Prisma 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 Prisma and ForthWrite

Prisma Reviews

  1. shah7
    ยท Admin at Lensa Mod ยท
    Lensa

    Prisma AI is a computer vision and AI company that specializes in developing deep learning algorithms for image and video processing. It offers a range of products for object recognition, image and video classification, and style transfer. Many users have praised its ease of use and accurate results. However, like any technology, it has its limitations and may not always provide the best results for all use cases.


5 Apps Like Prisma Photo Editor
Prisma Photo Editor is an elegant photo editing platform that creates awesome photos while letting you apply tons of amazing features, effects, and functionalities right away. You can make your pics look awesome while applying Prismaโ€™s effects and filters.
11 Best AI-Powered Photo Editor Software and Apps for Professionals
Prisma recently rolled out another similar AI-powered editing app named Lensa, whichโ€™s solely made for selfies and portrait photos. It can cover up pimples, dark circles and do other skin corrections along with overall enhancements.
Source: geekflare.com
Best free and paid photo editing apps for iPhone and Android
Prisma doesn't deal with subtle filters and basic image corrections. Instead, its trippy filters will transform your images into often bizarre artistic creations. The results have a painterly effect and indeed many filters are inspired by artists such as Salvador Dali and Picasso. The filters are strong, and while you can tweak them, not every filter will work with every...
Source: www.cnet.com
5 Free Prisma Alternative Software for Windows to Turn Photos into Art
If you love turning photos into artwork, then you must love the Prisma app. However, it doesnโ€™t offer any desktop client and only works on Android and iPhone. But, what if you want to turn your photos into artwork while working on PC? Well, then using some of the Prisma alternative software for Windows is probably the best option for you to do the same. To ease up things for...

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, Prisma 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.

Prisma mentions (5)

  • How would generating art in private work ?
    What if I just want to make a few? However if you're hoping to do this just for a few images then there are some very low cost apps (often free if you plan it right) which use Stable Diffusion and Dreambooth in the background to produce the personalised images. One such example is Lensa. Source: over 3 years ago
  • Catching The Morning Sun
    Perhaps, or they just used an app like Prisma to add that โ€œpaintingโ€ effect. Source: over 4 years ago
  • Need your review. As a backend dev are you happy with GraphQL vs REST?
    I had to deal with this more in Rails whereas in Node/Apollo, using Prisma made composing efficient/perform ant SQL queries trivial: https://www.prisma.io/. Source: almost 5 years ago
  • Carrack phone wallpaper edited using style transfer
    I really liked this wallpaper by /u/MadDaz and I tried using style transfers using prisma-ai.com to generate images a bit more abstract. Here are the results! Source: about 5 years ago
  • Rare Rye Rose Mash-up
    Thanks - I made it on my android phone using Prisma and Snapseed. 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 Prisma and ForthWrite, you can also consider the following products

Supabase - An open source Firebase alternative

ReclaimAI - Helps users prioritize their work and personal calendars

Artisse AI - Artisse is an AI-powered app that effortlessly transforms ordinary selfies into hyper-realistic masterpieces, allowing users to explore their creativity like never before. Artisse redefines photography, making it accessible and inspiring for all.

Superhuman - Superhuman is an email management tool.

Yachting Software - Yachting Software

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