Software Alternatives, Accelerators & Startups

Hourglass VS ForthWrite

Compare Hourglass VS ForthWrite and see what are their differences

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Hourglass logo Hourglass

Hourglass is the most advanced simple countdown timer for Windows.

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.
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  • Hourglass 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.

Hourglass

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
Australia

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

Hourglass features and specs

  • User-Friendly Interface
    Hourglass offers a straightforward and intuitive interface, allowing users to quickly set up and manage timers without any hassle.
  • Customizable Alerts
    Users can customize alerts with different sounds and messages, ensuring they are notified in a manner that suits their preferences.
  • Versatile Time Formats
    The application supports a variety of time formats, including seconds, minutes, and hours, enabling precise time tracking.
  • Portable
    Hourglass is a portable application, meaning it can be run from a USB drive without the need for installation, making it highly convenient for use on different devices.
  • Free of Cost
    The application is available for free, providing significant value without any financial investment.

Possible disadvantages of Hourglass

  • Limited Functionality
    Hourglass focuses primarily on basic timer functions and lacks advanced features like integration with other tools or apps.
  • Windows Only
    Hourglass is only available for Windows, limiting its accessibility for users on other operating systems like macOS or Linux.
  • No Cloud Sync
    The application does not support syncing timers across devices via cloud services, restricting users to manage timers on the same device.
  • No Mobile App
    There is no mobile version of Hourglass, which means users cannot set or manage timers on their smartphones or tablets.
  • No Updates
    The application does not receive frequent updates, which might result in outdated features or lack of support for newer operating systems.

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 Hourglass

Overall verdict

  • Yes, Hourglass is a good tool.

Why this product is good

  • Hourglass is a straightforward and user-friendly countdown timer application. It is known for its simplicity, easy-to-use interface, and versatility. Users appreciate its ability to create multiple timers and customize them according to their needs. Additionally, it offers features such as notifications and a variety of alarm sounds, making it a practical choice for those who need to manage their time effectively.

Recommended for

    Hourglass is recommended for anyone who needs a reliable and simple countdown timer. It's particularly useful for individuals who work with time-sensitive tasks, such as those in the kitchen, fitness enthusiasts, or professionals who need to manage their time during meetings or work sessions. It's also a great tool for students who want to use the Pomodoro Technique to enhance their productivity.

Hourglass videos

First Time Wearing ONLY Hourglass Makeup

More videos:

  • Review - I TRIED $500 WORTH OF HOURGLASS MAKEUP .. WORTH IT?
  • Review - HOURGLASS HOLIDAY 2020 | SCULPTURE PALETTE FULL DETAILED REVIEW | COST BREAKDOWN

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 Hourglass and ForthWrite)
Online Services
100 100%
0% 0
Writing Tools
0 0%
100% 100
Time Tracking
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Hourglass 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 Hourglass 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 Hourglass and ForthWrite

Hourglass Reviews

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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, Hourglass 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.

Hourglass mentions (5)

  • Whatโ€™s the best website to use as a timer?
    Check out hourglass if you are on Windows. Itโ€™s a simple portable timer with no fluff. Source: over 3 years ago
  • how to add a timer that is counting down from a certain amount of hours that stays on the the screen and doesn't reset when laptop shuts down
    I have not used or tried this app https://chris.dziemborowicz.com/apps/hourglass/. Source: almost 4 years ago
  • Anybody know a good countdown timer for windows? I'd rather not use whatever web tools are out there. All I want out of it is to start the countdown over with just one click, and set my own alarm sound.
    Https://chris.dziemborowicz.com/apps/hourglass/ put your alarm sounds in C:\Program Files (x86)\Hourglass or just the local folder if you use the portable version. Source: over 4 years ago
  • [Steam] Summer Sale 2021 (Day 5)
    Put a slightly less than 2hr timer (e.g. I use this https://chris.dziemborowicz.com/apps/hourglass/ but any similar would do), if you are not sure then uninstall and ask for a refund. EZ PZ. Source: about 5 years ago
  • Program to display timer/stopwatch on taskbar in windows 10?
    Try https://tomighty.github.io/ or https://chris.dziemborowicz.com/apps/hourglass/ - when minimized to taskbar icon it shows time progress as a background colour. If you find something better let me know. I also looking for a regular clock in taskbar (hour & minutes only). 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 Hourglass and ForthWrite, you can also consider the following products

wnr - Better than pomodoro, this timer app balances work and rest.

Superhuman - Superhuman is an email management tool.

TIMEBOX - An advanced timer for professional meeting facilitators

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.

SnapTimer - SnapTimer is a simple, free, portable countdown timer for Windows.

Lavender - Realtime coaching for sales emails.