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IBM SPSS Statistics VS ForthWrite

Compare IBM SPSS Statistics VS ForthWrite and see what are their differences

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IBM SPSS Statistics logo IBM SPSS Statistics

IBM SPSS Statistics is software that provides detailed analysis of statistical data. The company behind the product practically needs no introduction, as it's been a staple of the technology industry for over 100 years.

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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  • IBM SPSS Statistics Landing page
    Landing page //
    2023-09-16
  • 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.

IBM SPSS Statistics

Website
ibm.com
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

IBM SPSS Statistics features and specs

  • Comprehensive Statistical Analysis
    IBM SPSS Statistics offers a wide range of statistical tests and procedures, allowing users to perform in-depth data analysis and draw meaningful conclusions from their data.
  • User-Friendly Interface
    The software provides an intuitive and easy-to-navigate interface, making it accessible to both novice and experienced users without requiring extensive training.
  • Data Management Capabilities
    SPSS allows for efficient data management, including data cleaning, transformation, and manipulation, which helps in preparing data for analysis.
  • Advanced Graphical Tools
    The software includes advanced graphical tools for visualizing data, enabling users to create informative and visually appealing charts and graphs.
  • Integration with Other Software
    SPSS integrates well with other software and platforms such as Microsoft Excel, ensuring seamless data import and export, as well as compatibility with other analytical tools.
  • Extensive Documentation and Support
    IBM provides comprehensive documentation, tutorials, and customer support, making it easier for users to troubleshoot issues and get the most out of the software.

Possible disadvantages of IBM SPSS Statistics

  • High Cost
    IBM SPSS Statistics can be expensive, particularly for small businesses or individual users, as it requires the purchase of licenses and potential additional costs for modules.
  • Steep Learning Curve for Advanced Features
    While the basic interface is user-friendly, mastering the advanced features and functionalities can be challenging and may require significant time and effort.
  • Resource Intensive
    The software can be resource-intensive, requiring a powerful computer system with significant processing power and memory to run efficiently, especially with large datasets.
  • Limited Customization
    Compared to other statistical software like R or Python, SPSS offers limited customization options and flexibility in terms of scripting and automation.
  • Periodic Updates Required
    Frequent updates may be necessary to keep the software current, which can be time-consuming and may require additional costs for obtaining the latest versions.
  • Data Security Concerns
    Handling sensitive data within SPSS requires stringent security measures, and any data breaches or mishandling could result in significant consequences.

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 IBM SPSS Statistics

Overall verdict

  • Yes, IBM SPSS Statistics is generally considered a good statistical software package.

Why this product is good

  • User friendly
    It has an intuitive interface which makes it accessible to both beginners and advanced users.
  • Robust support
    IBM offers extensive support and documentation, making it easier to troubleshoot issues or learn new features.
  • Reliable results
    It is widely used in academia and industry for its accuracy and reliability in data analysis.
  • Comprehensive features
    SPSS provides a wide range of statistical tests, data management tools, and output features.

Recommended for

  • Researchers needing to perform complex statistical analyses
  • Students studying statistics who require an intuitive interface
  • Data analysts in organizations needing to convert data into actionable insights
  • Academics looking for reliable and well-supported statistical software
  • Market researchers conducting quantitative analysis

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

IBM SPSS Statistics videos

IBM SPSS Statistics Overview

More videos:

  • Review - What's new in IBM SPSS Statistics 26

ForthWrite videos

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Category Popularity

0-100% (relative to IBM SPSS Statistics and ForthWrite)
Technical Computing
100 100%
0% 0
Email
0 0%
100% 100
Data Dashboard
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing IBM SPSS Statistics 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 IBM SPSS Statistics and ForthWrite

IBM SPSS Statistics Reviews

Top 7 Predictive Analytics Tools
IBM SPSS Statistics is a popular predictive analytics tool. It offers a user-friendly interface and a strong set of features including the SPSS modeler, which provides advanced statistical procedures, helps ensure precision, and provides positive decision-making. All of the analytics lifecycle features are included, such as data preparation and management to analysis and...
Top 10 Free Statistical Analysis Software 2023
IBM SPSS Statistics is a popular statistical software package that is widely used in academia, research, and industry for data analysis, reporting, and visualization. Some of the key features of IBM SPSS Statistics include:

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)

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