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. Pay only for what you dial.
Credit-based subscriptions (Est. $0.09 - $0.15/min)
Bulk outbound calling & lead qualification
World-leading voice cloning & TTS realism
Excel-In, Excel-Out. Upload list & launch.
API/Platform reliant; not built for Excel lists
Zero. No-code, ready to use in minutes.
Low to High (Studio vs API)
Sales-focused: Lead scoring, call summaries
General: Audio logs and conversation text
Pay-as-you-go. No subscriptions.
Monthly Subscriptions + Usage Overage
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 ElevenLabs?
Ideal for creators and enterprises who prioritize the absolute highest standard of vocal realism, voice cloning, and want a unified agent across chat and phone.
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.