Cresta: Enterprise contact-center AI platform combining real-time agent assist, autonomous AI agents, and conversation intelligence. Zell: Berlin-based sales performance intelligence platform that analyzes real sales calls, surfaces skill gaps, and delivers AI coaching and roleplays, using GDPR-compliant on-device transcription. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Cresta when assisting contact-center agents in real time during customer conversations matters most, and Zell when automating sales-manager coaching with personalized plans and ai roleplays matters most. Try them side by side on real calls before deciding — needs vary by team.
Enterprise contact-center AI platform combining real-time agent assist, autonomous AI agents, and conversation intelligence.
Berlin-based sales performance intelligence platform that analyzes real sales calls, surfaces skill gaps, and delivers AI coaching and roleplays, using GDPR-compliant on-device transcription.
Cresta is an enterprise customer-experience AI platform that unifies human and AI agents across voice and digital channels. It captures conversations through integrations with major contact-center systems such as Genesys, NICE, Salesforce, Twilio, and Amazon Connect, then analyzes those interactions at scale to surface behavioral insights and deliver real-time guidance. Its Agent Assist listens to live conversations and provides agents with in-the-moment suggestions, knowledge, and next-best actions, while a Knowledge Agent proactively surfaces context-aware answers without manual prompting. Cresta's conversation intelligence analyzes 100% of interactions to identify the behaviors that drive outcomes, and its automated quality management scores conversations across the board so supervisors gain visibility without manual sampling. The platform also offers autonomous AI agents that can resolve customer conversations end to end, plus an Agent Operations Center that gives supervisors real-time visibility and intervention tools across both human and AI-led conversations. Cresta is built for large enterprise contact centers in industries such as financial services, travel and hospitality, telecommunications, insurance, and healthcare that need real-time assistance, coaching, and analytics at scale. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Zell is a Berlin-based AI platform that captures and analyzes real sales calls to give sales teams performance visibility and automated coaching. It works across video calls, phone calls, and in-person meetings, automatically evaluating call behaviors such as talk patterns, objection handling, and discovery depth, and producing scorecards and instant AI call summaries once conversations end. A skill-gaps dashboard helps managers see who is improving and where coaching is needed, while an AI coaching component (named Dave) generates personalized feedback, coaching plans, and roleplay simulations based on each rep's actual performance, then tracks improvement over time. Zell positions itself as a layer that turns conversation insights into action and automates much of the sales manager's manual coaching workload. As a European company founded in 2024, Zell emphasizes GDPR-compliant, on-device transcription that does not require a meeting bot or store customer data. The company has validated its model with clients across the US, Germany, Italy, and Spain and is backed by European pre-seed investors. It is a newer, privacy-focused alternative to large US conversation intelligence platforms. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Cresta is a free tier with paid upgrades (freemium); Zell is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Cresta | Zell |
|---|---|---|
| Core capability | Real-time Agent Assist with live suggestions and knowledge | Captures and analyzes video, phone, and in-person sales calls |
| Standout feature | Conversation intelligence analyzing 100% of interactions | GDPR-compliant on-device transcription without a meeting bot or stored customer data |
| Team usage | Automated quality management and scoring across all calls | Automated scorecards on talk patterns, objection handling, and discovery depth |
| Integrations | Knowledge Agent that proactively surfaces context-aware answers | Instant AI call summaries after each conversation |
| Languages & capture | Autonomous AI agents for end-to-end conversation resolution | Skill-gap dashboard for managers across reps |
| Best-fit workflow | Integrations with Genesys, NICE, Salesforce, Twilio, and Amazon Connect | AI coaching, personalized coaching plans, and roleplay simulations |
Cresta
Choose Cresta if you need assisting contact-center agents in real time during customer conversations — strengths include delivers real-time guidance during live conversations, not just post-call review.
Zell
Choose Zell if you need analyzing real sales calls to score rep behaviors and identify skill gaps — strengths include privacy-first design with on-device transcription suited to gdpr-conscious eu teams.
Cresta
Zell
It depends on your workflow. Cresta is strong for assisting contact-center agents in real time during customer conversations, while Zell is strong for analyzing real sales calls to score rep behaviors and identify skill gaps. Both transcribe and summarize meetings.
Cresta is a free tier with paid upgrades and Zell is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
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