AuditBoard vs Workiva vs Diligent: which audit management software is best for an internal audit team in 2026?
Every price and fact below was checked on each company's own website on October 11, 2026. Sources are listed at the bottom. No company pays to appear.
The short answer
None of the three publishes a price, so every cost comes from a sales quote. AuditBoard (now Optro) is the pick for audit and SOX teams that want one audit-first platform with unlimited stakeholder licences. Workiva suits teams that also report to regulators, because its audit and risk tools sit on the same platform as financial and sustainability reporting, with unlimited seats on every offering. Diligent suits organisations that want audit, board management and wider GRC from one vendor, and it explains how its packages are built on a public pricing page.
Side by side
| AuditBoard | Workiva | Diligent | |
|---|---|---|---|
| Top 11 rank | #1 | #2 | #3 |
| Best for | Internal audit and SOX teams that want an audit-first GRC platform | Finance and risk teams that want audit next to financial and sustainability reporting | Organisations that want audit alongside board management and wider governance, risk and compliance |
| Published price | Not published. The pricing page asks you to request Optro pricing | Not published. Sales quote only | Not published. The pricing page offers a package tailored to your size, via a form |
| Pricing model | Flexible plans, with unlimited stakeholder licences and no fees for additional licences | Good, better, best packaging for some solutions, other instances priced to need. Volume discounts for enterprise clients | Package built around the size and stage of the organisation |
| User licensing | Unlimited stakeholder licences | Unlimited seats or users on all offerings | Not mentioned on the pages read |
| Audit management | Risk-based audits, operational, IT and compliance audits, fraud investigations, IIA standards conformance | Audit Management listed under its Risk solutions, alongside controls and SOX compliance | Internal Audit product with an agentic audit agent that rolls forward prior audits, drafts evidence requests and executes control tests |
| SOX and controls | SOX readiness, controls management and autonomous testing | SOX compliance and controls management | Separate Internal Controls product |
| Wider platform | Audit, risk, infosec, compliance and AI governance | Financial reporting, sustainability management and capital markets, plus audit and risk | Board management (Diligent Boards, BoardEffect), risk, compliance and audit, including ACL Analytics |
| Published scale | Trusted by over 50% of the Fortune 500 | Used in 180+ countries and supports over 40 languages | 25k organisations across 130+ countries, 1m+ users, and 75%+ of the Fortune 500 |
| Free trial | Not mentioned. Demo on request | Not mentioned. Sales contact required | Not mentioned. Demo and pricing request |
The winner, by what you need
Audit and SOX teams that want a dedicated audit platform
AuditBoard
Its audit page covers operational, IT, compliance and fraud audits, IIA conformance, SOX readiness and autonomous testing, with unlimited stakeholder licences.
Teams that also own financial or sustainability reporting
Workiva
Audit, risk and SOX sit on the same platform as financial reporting and sustainability management, and every offering has unlimited seats.
Organisations that want audit and board reporting from one vendor
Diligent
Diligent sells Diligent Boards and BoardEffect alongside Internal Audit, and its audit agent drafts board-ready reports.
Getting a price before a sales call
Diligent
Its internal audit page has a Get pricing option and its pricing page says packages are tailored to organisation size, but no figure is published by any of the three. AuditBoard and Workiva also route pricing to a form or sales contact.
Worth knowing
- None of the three vendors publishes a price on the pages read, so cost can only be confirmed with a quote. Do not treat any figure from a third party as list pricing.
- AuditBoard now trades as Optro. Its site says Gartner names Optro (formerly AuditBoard) a Leader in the 2025 Magic Quadrant for GRC Tools, Assurance Leaders.
- Trial availability was not stated on any of the pages read. Pages checked on 11 October 2026 and can change at any time.
See all eleven in the full ranking: AuditBoard vs Workiva vs Diligent: 11 Best Audit Management Software 2026.
Sources
- AuditBoard (Optro) audit features, SOX readiness, Fortune 500 claim, formerly AuditBoard rebrand: https://www.auditboard.com/solutions/audit
- AuditBoard (Optro) pricing page: request pricing, flexible plans, unlimited stakeholder licences, no fees for additional licences: https://www.auditboard.com/pricing
- Optro platform scope: audit, risk, infosec, compliance, AI governance: https://www.auditboard.com
- Workiva pricing model, unlimited seats on all offerings, good/better/best packaging, volume discounts, 180+ countries, 40+ languages, sales contact to purchase: https://www.workiva.com/pricing
- Workiva solutions: financial reporting, risk (audit management, SOX compliance, controls), sustainability, capital markets: https://www.workiva.com
- Diligent Internal Audit product, audit agent features, Get pricing option, product list including Internal Controls and ACL Analytics, Diligent Boards and BoardEffect: https://www.diligent.com/products/internal-audit
- Diligent pricing approach, 25k organisations, 130+ countries, 1m+ users, 75%+ of the Fortune 500: https://www.diligent.com/pricing