Stop Building. Start Calling.
See why high-volume sales teams are ditching expensive api platforms for the simplicity of Kolz Bulk. No developers required.
Features
$0.03/min Flat. Simple, predictable, all-inclusive.
~$0.13 - $0.31/min (Varies by LLM + Voice engine)
High-volume sales teams & agencies
Enterprise operations & regulated spaces
Excel-In, Excel-Out. Upload list & launch.
Dashboard builder or API integration
Zero. Built entirely for non-technical users.
Low to Medium. Requires workflow mapping.
Affordable at scale ($30 per 1,000 mins)
Costly at scale ($130+ per 1,000 mins)
Natural 2-way AI tuned specifically for sales
Ultra-realistic, low latency conversational depth
Built for Sales, Not Engineers
Choose Kolz Bulk if your ultimate goal is driving revenue, not building infrastructure. We stripped away the developer complexity so you can go live instantly.
- Excel-In, Excel-Out workflow
- $0.03/min flat rate. Zero hidden fees.
- Launch thousands of calls in one click
Why Choose Retell AI?
Choose Retell if you need SOC2/HIPAA compliance for regulated industries or the absolute most advanced human-like turn-taking (sub-600ms latency) for enterprise operations.
The Trade-off
- •You will need to pay software engineers to integrate their API.
- •You have to build your own dashboard to manage campaigns.
- •Costs escalate drastically when running high call volumes.
Ready to make the switch?
Join the smart sales teams automating their outreach with Kolz Bulk. Claim your 100 free minutes today.