Voice AnalyticsBest for specific AI voice agent failure investigationReviewed March 2026

Sherlock Calls vs Sentisum

Sentisum aggregates customer feedback to surface trends and themes. Sherlock Calls investigates AI voice agent failures across Twilio, ElevenLabs, and 13+ providers — in Slack, in under 5 seconds.

TL;DR — The short answer

  • 1

    Sentisum aggregates Voice of the Customer signals — tickets, calls, reviews — to surface trends and themes for product and support teams.

  • 2

    Sherlock Calls investigates specific AI voice agent call failures — cross-provider forensics across Twilio, ElevenLabs, and Vapi, delivered in Slack.

  • 3

    Sentisum answers 'what are customers saying at scale?'. Sherlock answers 'why did this specific call fail?'. Different questions, different tools.

Understanding both tools

Sherlock Calls

AI-powered voice call investigation

Sherlock Calls is a Slack-native AI investigator for operations teams. Connect your existing providers — Twilio, ElevenLabs, Vapi, Genesys, and 20+ more — and ask questions in plain English. Sherlock autonomously gathers data across all connected services, correlates events, and delivers a sourced answer in under 5 seconds. No new dashboards. No SDK. No code changes.

  • Works inside Slack — no new UI to learn
  • Connects to 20+ providers in minutes
  • Investigates calls autonomously with AI
  • Free tier — 100 credits per workspace

Sentisum

Voice of the Customer analytics — surface trends across support channels

Sentisum is a Voice of the Customer (VoC) analytics platform that aggregates customer feedback from calls, chat, email, and reviews to identify trends, topics, and business-impacting themes.

  • Aggregates VoC signals across calls, tickets, chat, email, and review platforms
  • AI-powered topic detection and sentiment analysis across support channels
  • Business impact analysis — connecting customer themes to revenue and churn
  • Integrates with Zendesk, Intercom, Freshdesk, and major support platforms

Feature comparison — Call Intelligence & Analytics

Sherlock Calls vs Sentisum & peers

All tools in the Call Intelligence & Analytics category — so you can compare both head-to-head and within the landscape.

Feature
SherlockCalls
Sentisumthis page
CallRailChorus by ZoomInfoConvinFive9GongInvocaObserve.AITalkdesk
AI call investigation
AI agent & LLM tracing
AI governance & compliance
Offline LLM evaluation
Provider integrations
20+
Support and feedback platforms
50+ (marketing-focused)
Zoom, Teams, phone (human)
Contact center platforms (human)
Enterprise ecosystem
Zoom, Teams, phone (human)
50+ (enterprise marketing)
15+ (contact center)
60+ (CCaaS ecosystem)
Cross-provider correlation
Natural language queries
Zero-code setup
Per-call cost tracking
Free tier available
Supported
Partial
Not available

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Key differences

Why teams switch from Sentisum to Sherlock

Specific Call Forensics vs Aggregate Trend Analysis

Sherlock Calls

Sherlock answers why a specific call failed with a multi-provider evidence trail. Point-in-time forensics, not trend aggregation.

Sentisum

Sentisum surfaces aggregate themes from large feedback volumes. It is not a forensic tool for diagnosing specific technical call failures.

AI Voice Stack vs VoC Channels

Sherlock Calls

Sherlock connects to Twilio, ElevenLabs, Vapi, and 12+ AI voice providers via API key.

Sentisum

Sentisum aggregates from support channels — tickets, reviews, chat — not from AI voice provider APIs.

Which tool is right for you?

When to choose Sherlock vs Sentisum

Choose Sherlock Calls if…

  • Your team needs to investigate specific AI voice agent call failures

Consider Sentisum if…

  • Your product or support team needs to surface trends across customer feedback at scale
  • You want VoC insights connecting customer themes to revenue impact

Pricing

Cost comparison

Sherlock Calls

Free to start

100 credits per Slack workspace. Team plans from $50/month. No credit card required to start.

  • Free tier — 100 credits/workspace
  • Team: $50–$5,000/month (usage-based)
  • Enterprise: custom pricing
  • No sales call required to start
  • Cancel anytime

Sentisum

Enterprise (custom)

Sentisum pricing is enterprise with no free tier.

* Pricing sourced from public information. Contact Sentisum for current rates.

FAQ

Frequently asked questions

What is the difference between Sherlock Calls and Sentisum?

Sentisum aggregates customer feedback across channels to surface VoC trends. Sherlock Calls investigates specific AI voice agent call failures across Twilio, ElevenLabs, and Vapi. Different scope — aggregate trends vs. specific incident forensics.

Is Sherlock Calls a Sentisum alternative?

No — they answer different questions. Sentisum answers what customers are saying at scale. Sherlock answers why a specific call failed in production.

How do I migrate from Sentisum to Sherlock Calls?

No migration needed. Sherlock and Sentisum serve different analytical purposes.

Does Sherlock Calls replace Sentisum?

Not a replacement — very different use cases. ⚠️ Phase 3 note: When Sherlock expands to cross-functional data and KPI investigation, overlap with VoC platforms like Sentisum may emerge.

Ready to investigate your calls the smarter way?

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