What if you could rehearse
every audit before it begins?
From configuration to insight in seconds
Pick a methodology
Watch the simulation
Explore the results
Every finding is traceable from opinion back to individual journal entries.
AI that speaks audit
Claude-powered intelligence grounded in your engagement data and ISA standards.
AI Audit Assistant
Ask any question about your engagement. The AI references specific procedures, ISA paragraphs, and anomaly data.
AI-Augmented Decisions
At each procedure, the AI shows its recommendation with reasoning. You decide — AI assists, never replaces.
Workpaper & Letter Drafting
Auto-generate workpapers, management letter points, and anomaly explanations from real engagement data.
One client. Five methodologies. Real results.
Run the same engagement through ISA baseline and all four Big 4 approaches. Compare procedures, artifacts, fitness, and judgment distribution.
KPMG, PwC, Deloitte, and EY are trademarks of their respective owners. AssureTwin has no affiliation with these firms. Our methodology blueprints are based on ISA (International Standards on Auditing) requirements with additional modelling derived from publicly available information. They represent educational simulations of audit approaches, not proprietary Big 4 audit methodologies. For actual firm-specific audit procedures, consult the respective firms directly.
Not just tested. Proven.
Every engagement is verified with finite state machines and linear temporal logic — the same mathematics used to verify aircraft software.
Built for audit professionals
Real scenarios. Real outcomes. No client data.
Client Pitches
"We simulated a Deloitte Omnia engagement for a prospect's industry — showed analytics, evidence chains, and AI-generated insights. Won the engagement without using any real client data."
Training at Scale
"Our new seniors trained on 12 simulated audits in one week. AI debrief after each session. Finding detection improved 95%. No real workpapers needed."
Methodology Evaluation
"We compared our approach against three competitor methodologies on the same client profile. Found our execution phase has 15% more procedures — justified our premium."
Simple, transparent pricing
Start free. Scale when you need to.
Starter
Explore and learn
- ✓ ISA + IIA-GIAS blueprints
- ✓ 3 engagements
- ✓ 10 AI messages / day
- ✓ Benford + 2 analytics
- ✓ 3 training scenarios
Student
For StudentsFull access for certification prep
- ✓ All 7 blueprints (Big 4 + ISA)
- ✓ 10 engagements
- ✓ 30 AI messages / day
- ✓ All 17 analytics
- ✓ Unlimited training + AI debrief
- ✓ PDF export
- ✓ Full financial overview
- ✓ Compare methodologies
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Verify Student StatusProfessional
Most PopularFull power for practitioners
- ✓ Everything in Student +
- ✓ 25 engagements
- ✓ Unlimited AI
- ✓ AI workpapers + agent
- ✓ Department planning (1)
- ✓ Formal proof export
- ✓ Graph analytics
Firm
Scale across your practice
- ✓ Everything in Professional +
- ✓ Unlimited engagements
- ✓ Custom blueprints
- ✓ Unlimited departments
- ✓ Classrooms
- ✓ PDF + XBRL export
- ✓ Desktop + on-premise
- ✓ Dedicated support + onboarding