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iNumbr vs Postfix

Professional comparison and analysis to help you choose the right software solution for your needs.

iNumbr icon
iNumbr
Postfix icon
Postfix

iNumbr vs Postfix: The Verdict

⚡ Summary:

iNumbr: iNumbr is a spreadsheet and data analysis software designed for iPad. It has an intuitive touch-based interface allowing fast data entry and manipulation. Key features include charting, pivot tables, formulas, and drop-down menus.

Postfix: Postfix is a popular open source Mail Transfer Agent (MTA) that routes and delivers email. It is a fast, easy to administer, and secure alternative to Sendmail. Postfix handles basic email routing and delivery well.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature iNumbr Postfix
Sugggest Score — —
Category Office & Productivity Network & Admin
Pricing — Open Source

Product Overview

iNumbr
iNumbr

Description: iNumbr is a spreadsheet and data analysis software designed for iPad. It has an intuitive touch-based interface allowing fast data entry and manipulation. Key features include charting, pivot tables, formulas, and drop-down menus.

Type: software

Postfix
Postfix

Description: Postfix is a popular open source Mail Transfer Agent (MTA) that routes and delivers email. It is a fast, easy to administer, and secure alternative to Sendmail. Postfix handles basic email routing and delivery well.

Type: software

Pricing: Open Source

Key Features Comparison

iNumbr
iNumbr Features
  • Spreadsheet creation and editing
  • Formulas and functions
  • Charts and graphs
  • Pivot tables
  • Drop-down menus
  • Touch-based interface
  • Fast data entry and manipulation
Postfix
Postfix Features
  • Mail Transfer Agent (MTA) for routing and delivering email
  • High performance and efficient email delivery
  • Easy administration with main configuration file postfix.cf
  • Built-in security features like SMTP authentication and TLS encryption
  • Compatible with Sendmail and easy migration from Sendmail
  • Modular design allowing third-party plugins and add-ons
  • Support for virtual domains, aliases, forwarding, etc
  • Content filtering with third-party products
  • Backward compatible with Sendmail configuration files

Pros & Cons Analysis

iNumbr
iNumbr

Pros

  • Intuitive and easy to use
  • Optimized for iPad and touchscreens
  • Powerful data analysis capabilities
  • Visualizations with charts and graphs
  • Great for working with large datasets
  • Smooth performance

Cons

  • Limited compared to desktop spreadsheet software
  • No macro support
  • Lacks some advanced features like solver
  • Not compatible with Excel file formats
  • iOS only
Postfix
Postfix

Pros

  • Very fast and efficient
  • Easy to install, configure and maintain
  • Highly secure and stable
  • Great flexibility and extensibility
  • Excellent compatibility with Sendmail and other MTAs
  • Active development and support community

Cons

  • Less user-friendly configuration than some alternatives
  • Limited built-in spam filtering capabilities
  • Steeper learning curve than some other MTAs
  • Not as feature-rich as some commercial MTAs
  • Requires more technical knowledge to manage

Pricing Comparison

iNumbr
iNumbr
  • Not listed
Postfix
Postfix
  • Open Source

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Learn More About Each Product

iNumbr
iNumbr
Reviews, pricing & alternatives →
Postfix
Postfix
Reviews, pricing & alternatives →

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