Software Alternatives, Accelerators & Startups

ioBroker VS ForthWrite

Compare ioBroker VS ForthWrite and see what are their differences

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ioBroker logo ioBroker

flexible and modular application for the IoT and Smarthome

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
  • ioBroker Landing page
    Landing page //
    2022-07-22

More than 500 different modules(adapters) that can be interconnected with each other. E.g. Homematic or KNX can control HUE or sonos and vice versa.

  • 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.

ioBroker

Pricing URL
-
$ Details
free
Platforms
Linux Windows Mac OSX REST API JavaScript
Release Date
2015 October

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

ioBroker features and specs

  • Open Source
    ioBroker is an open-source platform, which means it is free to use and continuously improved by a community of developers. This allows for transparency and flexibility in the usage and modification of the software.
  • Modular Architecture
    The platform supports a modular approach through adapters, which makes it highly extensible and allows users to add functionality as needed without bloating the system.
  • Cross-Platform Support
    ioBroker can run on various operating systems, including Linux, Windows, macOS, and even on lightweight devices like Raspberry Pi, making it highly versatile.
  • Wide Range of Adapters
    It supports a wide variety of adapters for different devices and services, enabling users to integrate numerous smart home products and protocols seamlessly.
  • User-Friendly Interface
    ioBroker offers an intuitive and user-friendly web interface, making it accessible for users with varying levels of technical expertise.
  • Automation Flexibility
    The platform supports powerful automation capabilities, allowing users to create complex automation rules and scenarios tailored to their needs.

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 ioBroker

Overall verdict

  • Yes, ioBroker is a good choice for those looking to create a cohesive smart home environment with diverse device compatibility and flexibility. Its open-source nature allows for extensive customization, though it might require some technical know-how to set up and maintain.

Why this product is good

  • ioBroker is a popular open-source platform for integrating various smart home devices and systems. It supports a wide range of devices and services through adapters, making it highly versatile and customizable. Its web-based interface is user-friendly, and it allows developers to create custom scripts and dashboards. The community support is robust, offering numerous forums and resources for help and extension possibilities.

Recommended for

    ioBroker is recommended for tech-savvy users who are comfortable with DIY configurations and those looking for a cost-effective solution to integrate various smart home devices. It's also suitable for developers interested in extending its capabilities through custom scripts and adapters.

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

ioBroker videos

ioBroker: Rock64 Langzeit-Review - Bereue ich den Kauf?

More videos:

  • Review - iObroker Teil1 | Grundlagen/รœbersicht | Review Smart Home Kombination 2019 [GERMAN/DEUTSCH]
  • Review - SMARTE ZENTRALE | ioBroker als kostenlose SmartHome-Automation

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to ioBroker and ForthWrite)
Data Dashboard
100 100%
0% 0
Email
0 0%
100% 100
Home
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing ioBroker and ForthWrite.

What makes your product unique?

ioBroker's answer

  • Multi-Host support for Scalability and better connectivity (you can connect many ioBroker hosts together),
  • Comprehensive visualization(Vis, iQontrol, ...),
  • Flexibility (jsonl for simplisity as DB or Redis as high performance DB),
  • ioBroker is highly flexible and customizable...

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?

ioBroker's answer

  • Compatibility: ioBroker supports a vast range of devices and protocols, making it one of the most versatile smart home automation systems available. It is compatible with many popular brands and can integrate with virtually any smart device, offering a level of flexibility that might not be available with other platforms.

  • Open Source: As an open-source platform, ioBroker is free to use and continuously updated and improved by a community of developers. This allows for greater customization, transparency, and control over your home automation setup.

  • Scalability: ioBroker is designed to handle complex smart home setups. No matter how many devices you have or plan to add in the future, the platform is designed to scale and manage a large and diverse range of devices efficiently.

  • JavaScript and Blockly support: For those comfortable with programming, ioBroker offers the option to write scripts in JavaScript. For users who prefer a graphical interface, Blockly is available. This versatility can be appealing for both beginners and experienced users.

  • Data Logging: ioBroker has extensive data logging capabilities, allowing users to store, analyze, and visualize data from their smart devices over long periods of time. This can be incredibly valuable for monitoring energy usage, tracking trends, and optimizing your smart home setup.

  • Community and Support: ioBroker has a strong and active community of users and developers who can provide assistance, share ideas, and help troubleshoot any issues you may encounter.

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?

ioBroker's answer

Mostly users are german speaking, but all documentation is primary in english.

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?

ioBroker's answer

ioBroker is an open-source Internet of Things (IoT) platform that was developed with the aim to provide a unified and flexible solution for smart home automation. It's primarily driven by a community of enthusiasts and developers contributing to its ongoing development and expansion.

The project was initiated to overcome the limitations of existing smart home platforms, particularly the inability of many platforms to integrate with a wide variety of devices and brands. ioBroker was designed with a focus on compatibility, scalability, and flexibility, aiming to provide a solution that can integrate a vast array of smart devices, regardless of manufacturer or protocol, and handle complex home automation setups.

While the platform was initially more popular among the tech-savvy due to its need for more technical involvement, over time, efforts have been made to make it more user-friendly and accessible to a wider audience.

As an open-source project, the ongoing development of ioBroker is dependent on the contributions of its community, including software developers and end-users, who continually work on refining the software, expanding its compatibility with different devices, and improving its features.

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.

Which are the primary technologies used for building your product?

ioBroker's answer

JavaScript, Redis, Mqtt, MUI-UI.

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

User comments

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Reviews

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

ioBroker Reviews

16 Open Source Home Automation Platforms To Use In 2020
ioBroker appeared on the open source home automation spectrum at the beginning of 2017, but it went on to become one of the fastest growing communities in the game. With more than 21,000 users happy to chime in, ioBroker is a strong proposition that offers a total of around 300 integrations. That's great considering that the software is completely free to use. Why not give...
Source: ubidots.com

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 ioBroker and ForthWrite, you can also consider the following products

openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation

ReclaimAI - Helps users prioritize their work and personal calendars

Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.

Superhuman - Superhuman is an email management tool.

Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.

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