Software Alternatives, Accelerators & Startups

KeyCDN VS ForthWrite

Compare KeyCDN VS ForthWrite and see what are their differences

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KeyCDN logo KeyCDN

KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.

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
  • KeyCDN Landing page
    Landing page //
    2021-10-11
  • 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.

KeyCDN

Website
keycdn.com
$ 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

KeyCDN features and specs

  • Performance
    KeyCDN has a broad network with strategically placed POPs (Points of Presence) that ensures fast content delivery and low latency.
  • Cost-effective
    Offers competitive pricing compared to other CDN providers, making it attractive for small to medium-sized businesses.
  • Ease of Use
    User-friendly interface and straightforward setup make it easy for users to deploy and manage their CDN services.
  • Security Features
    Provides built-in security features such as DDoS protection, secure token links, and SSL support to safeguard content.
  • Real-time Analytics
    Offers comprehensive real-time analytics and reporting tools that provide valuable insights into content delivery performance and usage statistics.
  • Support for Various Integrations
    Supports integrations with popular CMS platforms, frameworks, and e-commerce solutions like WordPress, Magento, and WooCommerce.

Possible disadvantages of KeyCDN

  • Limited Advanced Features
    While it offers essential CDN functionalities, KeyCDN may lack some advanced features available in other top-tier CDNs such as extensive edge computing capabilities.
  • Smaller Network
    Compared to larger CDN providers like Cloudflare or Akamai, KeyCDN has a smaller network of POPs, which may affect global performance in fewer regions.
  • Customer Support
    Some users have reported slower response times and less comprehensive support compared to other premium CDNs.
  • Caching Customization
    Offers fewer customization options for caching policies and rules compared to some competing CDNs.
  • No WAF
    Does not offer a built-in Web Application Firewall (WAF), which means users will need a separate solution for advanced web application protection.

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 KeyCDN

Overall verdict

  • Overall, KeyCDN is a strong choice for businesses and individuals looking to enhance their website's performance and reliability. It offers a solid balance of affordability, speed, and features.

Why this product is good

  • KeyCDN is considered a good option for a content delivery network (CDN) due to its competitive pricing, high performance, and ease of use. It offers a global network of strategically placed servers, which reduces latency and improves load times for users worldwide. Additionally, KeyCDN provides features like a user-friendly dashboard, real-time analytics, and security measures such as DDoS protection and free SSL certificates.

Recommended for

    KeyCDN is recommended for small to medium-sized businesses, e-commerce sites, bloggers, and web developers who need an efficient and cost-effective CDN solution. Its simplicity and robust support make it an excellent choice for those who want a straightforward setup without sacrificing performance.

KeyCDN videos

Full Site Cache for KeyCDN - A WordPress plugin

More videos:

  • Tutorial - How to Speed Up WordPress Website With CDN Service (KeyCDN)

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to KeyCDN and ForthWrite)
CDN
100 100%
0% 0
Writing Tools
0 0%
100% 100
Cloud Computing
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing KeyCDN 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 KeyCDN 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 KeyCDN and ForthWrite

KeyCDN Reviews

  1. Tony Lein
    ยท Working at FAQ Ally ยท
    KeyCDN - Helpful Tool

    KeyCDN is refreshing because it doesnโ€™t overcomplicate things. Itโ€™s easy to set up, the interface actually makes sense, and youโ€™re not buried in confusing options or enterprise-only features. The pricing is just as straightforward โ€” clear, affordable, and predictable, without hidden fees or surprise costs. It feels built for real people and real teams who just want a fast, reliable CDN without the hassle.

    ๐Ÿ‘ Pros:    Affordable price|Easy to use

The 7 Best Content-Delivery-Network Providers
KeyCDN is not a CDN provider from Germany, but it's close: The provider is based in Switzerland. The focus is on speed, a broad infrastructure, security and 24/7 support. KeyCDN's content delivery network is accessible on six continents and should be set up in a few minutes to swiftly send your content to your users all over the world - except Antarctica. KeyCDN is capable...
Source: omr.com
10 Top Cloudflare Alternatives for Your Website
Customization is the key to having a personalized experience. In this regard, KeyCDN is a touch better than Cloudflare. Therefore, you can configure the essential components, add it to any CMS or custom application to get the preferred result. If not optimized perfectly, images can drastically slow down content delivery. Keeping this crucial aspect in mind, KeyCDN offers a...
Source: beebom.com
5 Best Free CDN Solutions for WordPress to Speed Up Your Site
KeyCDN โ€“ KeyCDN is an easy-to-implement CDN that starts at just $0.04 per GB. Theyโ€™re the same people beyond plugins like Cache Enabler and the Optimus image optimizer plugin, so KeyCDN works great with both those plugins.
Source: wplift.com
11 Best CDN Providers To Speed Up A Website
Other KeyCDN features include the intuitive dashboard; HTTP/2 for faster delivery; GZip compression for faster data accessibility; real time reportings; extensive security (with DDoS protection, shared or custom SSL, secure token etc); origin shield and much more.
Source: mofluid.com
The best CDN providers of 2018 to speed up any website
More experienced users will appreciate options like Origin Shield โ€“ this allows you to specify a KeyCDN server to be the source for updates rather than the origin, reducing your server load. You're able to manipulate headers, cache or strip cookies, or set up a custom robots.txt. Once the service is running, a capable set of reporting tools enable watching CDN performance in...

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, KeyCDN seems to be more popular. It has been mentiond 2 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.

KeyCDN mentions (2)

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 KeyCDN and ForthWrite, you can also consider the following products

CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.

Superhuman - Superhuman is an email management tool.

Amazon CloudFront - Amazon CloudFront is a content delivery web service.

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.

CDN77 - Content Delivery Network - website speed acceleration with CDN77. 28+ PoPs, Pay-as-you-go prices, no commitments.

Lavender - Realtime coaching for sales emails.