Software Alternatives, Accelerators & Startups

Online Stopwatch VS ForthWrite

Compare Online Stopwatch VS ForthWrite and see what are their differences

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Online Stopwatch logo Online Stopwatch

Online Stopwatch is free to use online tool that allows you to keep track of the important events and tasks that you are performing.

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
  • Online Stopwatch Landing page
    Landing page //
    2021-11-17
  • 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.

Online Stopwatch

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

Online Stopwatch features and specs

  • User-Friendly Interface
    The website offers a simple and intuitive interface, making it easy for users to navigate and utilize the various timing tools without needing extensive instructions or tutorials.
  • Variety of Timers
    Online Stopwatch provides a wide range of timing tools, including countdown timers, stopwatches, and interval timers, catering to different user needs and preferences.
  • Accessibility
    Since it's a web-based tool, users can access Online Stopwatch from any device with an internet connection, offering convenience for both personal and professional use.
  • Customization Options
    The platform allows users to customize timers with unique settings such as alarm sounds, countdown displays, and themes, enhancing user experience and personal preference.
  • Free to Use
    Online Stopwatch is free to access, making it a cost-effective solution for individuals and businesses needing basic timing functionalities without a subscription fee.
  • Ease of Use
    The online stopwatch is user-friendly with a simple interface, making it easy for anyone to start and stop the timer without any complicated instructions.
  • No Installation Required
    Users do not need to install any applications or extensions, which saves storage space and keeps the system free from potential software conflicts.

Possible disadvantages of Online Stopwatch

  • Limited Advanced Features
    The website may lack more sophisticated features found in specialized timing software, such as detailed analytics or integration with other applications, which could be a drawback for professional users seeking comprehensive tools.
  • Dependent on Internet Connection
    Being an online tool, its functionality is contingent on having a stable internet connection, which might pose issues in areas with unreliable connectivity.
  • Advertising Presence
    Advertisements on the site could be distracting or intrusive for users, potentially affecting the overall user experience.
  • No Offline Capability
    Since it requires an internet connection, users cannot utilize the timers offline, which limits its availability in situations where internet access is restricted or unavailable.
  • Basic Design
    While functional, the design of Online Stopwatch might appear too basic or outdated for some users who prefer more modern and visually appealing interfaces.
  • Internet Dependency
    The tool requires an internet connection to function, which can be a limitation for users without reliable internet access.
  • Limited Features
    Compared to dedicated software or apps, the functionalities of the online stopwatch are often limited to basic timing features without advanced customization options.
  • Ad Interruptions
    Online tools like these may have advertisements that can distract users or interrupt the interface experience.

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

Online Stopwatch videos

Online Stopwatch Website Overview

ForthWrite videos

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

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Category Popularity

0-100% (relative to Online Stopwatch and ForthWrite)
Alarm Clock
100 100%
0% 0
Writing Tools
0 0%
100% 100
Tool
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Online Stopwatch 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

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Online Stopwatch and ForthWrite

Online Stopwatch Reviews

We have no reviews of Online Stopwatch yet.
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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, Online Stopwatch seems to be more popular. It has been mentiond 3 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.

Online Stopwatch mentions (3)

  • First time this has been done in almost FIVE YEARS!
    I use OBS studio for recording and DaVinci Resolve for editing (to add the timer in). For the timer, I used to use the online-stopwatch.com one, but for this video, I edited the timer in from this link (extracted using yt5s.com). Source: almost 3 years ago
  • Countdown stopwatch & number generator
    I've been trying out different plugins for this. All of them do not suit my needs and I need help on how to create a countdown timer, stopwatch and number generator. I need something like online-stopwatch.com, where the user generates the timers. Whether I create one myself or I use a pre-made one, I just need help on adding these 4 things to my website. Source: over 4 years ago
  • Mr proctor was kinda stupid.
    Same here walked in to see online-stopwatch.com qued up and got exited. Source: almost 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 Online Stopwatch and ForthWrite, you can also consider the following products

Online timer - Online timer is a free and easy-to-use tool that comes with a very simple way to get done with measuring time and alarm.

Superhuman - Superhuman is an email management tool.

Timer Tab - Online countdown timer, alarm clock, and stopwatch.

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.

Timer+ ยท multiple timers - Timer+ ยท multiple timers is an all-in-one-timer application designed for your Apple device, and that allows you to be more productive with your workflow and memorize the things that are important during the day.

Lavender - Realtime coaching for sales emails.