CORAA vs IDEA, ACL & CaseWare
Traditional CAATs pioneered computer-assisted audit. AI-native platforms are the next evolution. Here's how they compare for Indian statutory audit.
Two different approaches
Understanding what each platform is built to do helps you make the right choice for your firm.
Traditional CAATs
Rules-based data analysis
IDEA (CaseWare IDEA), ACL Analytics (Galvanize/Diligent), and CaseWare Working Papers represent over 20 years of computer-assisted audit innovation. These platforms offer deep forensic analytics, custom scripting environments (IDEAScript, ACL scripting), massive dataset handling, and enterprise ecosystems trusted by Big 4 firms, government auditors, and internal audit departments worldwide.
CORAA
AI-native audit platform
CORAA uses AI modules to automate the full statutory audit lifecycle — from ledger scrutiny and vouching to bank, GST, TDS, and ESI/PF reconciliation. Purpose-built for Indian CA firms, it requires no scripting, no training, and delivers same-day setup with per-entity pricing.
Feature-by-feature comparison
Based on publicly available information. Updated March 2026.
| Feature | Traditional CAATs IDEA, ACL, CaseWare | CORAA AI-native audit platform |
|---|---|---|
| Analysis approach | ||
| Deep forensic analytics | Rules & scripts | AI-powered |
| Custom scripting (IDEAScript / ACL) | Full scripting | No scripts needed |
| AI-powered anomaly detection | ||
| Massive dataset handling (millions of rows) | ||
| Statistical sampling | Sampling-based | 100% coverage |
| India-specific compliance | ||
| Indian statutory compliance (Schedule III) | Built-in | |
| GST reconciliation (2A / 2B / 3B) | ||
| TDS / ESI / PF compliance checks | ||
| Bank reconciliation | Script-based | AI-matched |
| NFRA-ready audit trails | ||
| Setup & operations | ||
| Same-day setup | 1–4 weeks training | Under 30 min |
| Tally / ERP data import | Manual config | Direct import |
| Working paper generation | CaseWare WP | AI-generated |
| Enterprise / GRC integration | Deep ecosystem | |
| No scripting required | ||
| Commercial | ||
| Per-entity pricing | Per-seat | |
| Unlimited users included | Per-seat licensing | |
Data sourced from publicly available vendor documentation for IDEA, ACL Analytics, and CaseWare. Feature availability may vary by product and version.
Pricing comparison
Transparent pricing you can evaluate without a sales call.
Traditional CAATs
₹50,000 – ₹3,00,000+
Per seat / year (varies by vendor)
CORAA
₹3,000–₹2,000
Per entity / year · unlimited users
No scripts needed
Your team can start auditing today — no training, no scripting.
Import your data
Tally XML/JSON or any ERP export. CORAA maps your chart of accounts and ledger structure automatically.
CORAA runs the analysis
AI modules scrutinise, reconcile, and vouch — no scripts to write, no rules to configure.
Review and sign off
AI-generated working papers with timestamped audit trail. Review findings and sign off.
Frequently asked questions
Are CAATs still relevant?
Absolutely. IDEA, ACL, and CaseWare have been the gold standard for computer-assisted audit for over two decades. They remain deeply embedded in Big 4 workflows, internal audit departments, and forensic investigations. The question isn't whether CAATs are relevant — it's whether your firm needs their scripting power or would benefit more from AI-native automation.
Can CORAA do what IDEA does?
For Indian statutory audit, CORAA covers the analysis CAATs perform — ledger scrutiny, reconciliation, anomaly detection — without requiring scripts. Where IDEA excels is in custom forensic analytics and advanced statistical routines built over years of scripting. If your work is heavily forensic or script-driven, CAATs may still be the better fit. If you need same-day statutory audit automation, CORAA is purpose-built for that.
Do I need scripting knowledge for CORAA?
No. CORAA is designed to be used without any scripting or programming knowledge. You import your data, and AI modules handle the analysis, reconciliation, and working paper generation. This is the fundamental difference from CAATs, where power comes from scripts you build and maintain.
Is CORAA suitable for internal audit?
CORAA is primarily designed for statutory audit workflows — the kind Indian CA firms perform under the Companies Act. CAATs like ACL and IDEA have deeper roots in internal audit and continuous monitoring. If your primary need is internal audit with GRC integration, traditional CAATs may be more appropriate. For statutory audit, CORAA offers a faster, more automated path.
How does NFRA compliance compare?
CORAA generates timestamped, immutable audit trails automatically — designed from the ground up for NFRA quality reviews. Traditional CAATs produce excellent documentation, but NFRA-specific compliance (Indian statutory format, Schedule III mapping) typically requires additional configuration or manual steps.
Can I migrate my ACL scripts to CORAA?
There's no direct script migration path, because CORAA doesn't use scripts — it uses AI modules. The analysis your scripts perform (duplicate detection, gap analysis, Benford's law, threshold checks) is handled automatically by CORAA's AI. You don't port scripts; you let the AI replicate the intent. For complex custom forensic scripts, you may want to keep your CAATs licence alongside CORAA.
Other comparisons
See how CORAA compares to other audit tools used by Indian CA firms.
See the difference on your data
Import a Tally file, run a full statutory audit, compare to your CAATs workflow. No scripts, no training.