C3

Paid#48 of 87 in HOA Management SoftwareHOA Accounting Software

C3: A mature HOA operations platform focused on accounting, budgeting, and maintenance workflows. Ranked #48 of 87 in HOA Management Software by our editors (4.1/10); pricing: Pricing on request; best for mature operations centered on financial management.

4.1/10★★☆☆☆Editor score

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At a glance

• Editor score
  4.1 / 10
• Pricing
  Pricing on request
• Best for
  Mature operations centered on financial management
• Founded
  1991
• Facts checked
  20 Sep 2026

• Where it wins

  • Covers accounting, budgeting, reporting, and delinquency processing
  • Combines work orders, maintenance, architectural management, and covenant tracking
  • Offers cloud access through web and Android platforms

• Where it doesn't

  • Pricing is handled through a contact-sales model
  • The listed integration is TownSq
  • Its focus is narrower than a broader resident-facing suite

Our verdict on C3

C3 is Advanced Technology Group, Inc.’s community association management software for management companies and self-managed associations. Its core coverage centers on financial and operational workflows, including financial management, accounts receivable and payable, budgeting, reporting, delinquency processing, association management, work orders, maintenance management, architectural management, and covenant tracking. Cloud access, web availability, Android support, online dues through ATG Pay, maintenance requests, and accounting tools position it for organizations managing day-to-day association administration.

Pricing is offered through a contact-sales model rather than a published plan structure. That approach may suit management companies and associations that want a conversation around organizational needs, but buyers will need to engage Advanced Technology Group to understand the commercial fit. The available product details do not establish separate tiers or a self-service subscription path, so C3 is better suited to buyers prepared for a sales-led evaluation than to teams comparing transparent online plans.

C3’s strongest distinction is breadth across financial control and operational follow-through. It connects accounting-related work with budgeting, receivables, payables, delinquency processing, work orders, maintenance, architectural management, and covenant tracking. The product is also positioned for growing management companies and smaller self-managed associations, with cloud access designed to provide user access to community data. Its ecosystem is centered on TownSq, while its platform coverage includes web and Android. Choose C3 when mature financial management is the priority alongside maintenance and governance workflows. Consider another option if your selection depends on a wider integration ecosystem or a broader resident-facing feature set.

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C3 pricing

C3 fact sheet

C3 integrations

C3 lists 1 integrations on its own site.

• TownSq

Alternatives to C3

• CINCBroad HOA operations coverage for established management companies and associations.8.9
• VantacaA broad HOA operations platform for management companies handling complex communities.8.8
• Condo ControlA broad HOA platform combining resident services, accounting workflows, integrations, and mobile apps.8.7

See all C3 alternatives →

Featured on iTechGuides

C3 is listed in our HOA Management Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update