# Addsuminc > Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04. - **Business Profile:** https://optimly.ai/brand/addsuminc - **Dataset:** https://optimly.ai/brand/addsuminc.json - **Markdown:** https://optimly.ai/brand/addsuminc/llms.txt - **Official website:** https://addsuminc.com - **Slug:** addsuminc - **Categories:** developer-tools, finance-accounting-software ## Overview - **Tagline:** Time-tested desktop accounting software with a one-time purchase model, no required annual fees, user control over data, and in-house support and development. Source: Brand's website (https://addsuminc.com) · 2026-10-04 - **Description:** Addsum Business Software, Inc. publishes and supports Advanced Accounting, a desktop accounting software offering a complete financial application with a point of sale module, and TAS Premier, a developer software for business and accounting computer software programming. They provide solutions with a one-time purchase model, emphasizing data control and non-outsourced support. Source: Brand's website (https://addsuminc.com) · 2026-10-04 ## Offerings - **Core capabilities:** - Advanced Accounting (desktop accounting software with point-of-sale functionality) - TAS Premier (developer software for business and accounting applications) Source: Brand's website (https://addsuminc.com) · 2026-10-04 - **Pricing:** One-time software purchase with optional low-cost updates and no required annual fees. Source: Brand's website (https://addsuminc.com) · 2026-10-04 ## Audience - **Target industry:** Small to medium-sized businesses needing financial management and point-of-sale solutions; developers seeking tools for building business and accounting applications. Source: Brand's website (https://addsuminc.com) · 2026-10-04 Page last updated 2026-10-17.