Elto Dialer vs Kixie vs Trellus: Which is Best for Appointment-Setting Agencies?
A comprehensive comparison of Elto Dialer, Kixie, and Trellus for appointment-setting agencies, examining their features, pricing, and unique selling points to help you choose the best AI sales dialer for your business.

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For appointment-setting agencies, the right technology is the engine of growth. In a world where every call counts, AI-powered dialers have become essential for maximizing efficiency, increasing connect rates, and booking more meetings. Three of the top contenders in this space are Elto Dialer, Kixie, and Trellus. But with each platform offering a different approach to sales engagement, how do you determine which is the best fit for your agency?
This in-depth comparison will explore the key differences between Elto Dialer, Kixie, and Trellus, with a specific focus on the needs of appointment-setting agencies. We will examine their core dialing technology, AI capabilities, pricing, and unique selling points to help you make an informed decision and choose the platform that will best empower your team to succeed.
What is Elto Dialer?

Elto Dialer is an AI-powered parallel dialer that is designed for high-volume cold calling. It offers a simple and affordable solution for high-volume outreach, with features like AI parallel dialing, human pickup detection, and seamless integration with Apollo.io. Elto is a great choice for appointment-setting agencies that are looking for a fast, easy-to-use, and affordable way to scale their operations.
What is Kixie PowerCall?

Kixie PowerCall is a comprehensive sales engagement platform that offers a multi-line power dialer, team SMS, and a wide range of other features. It is designed to be an all-in-one solution for revenue teams, with a strong focus on team collaboration, compliance, and CRM integration. Kixie is a good choice for appointment-setting agencies that are looking for a mature and feature-rich platform to manage their entire sales process.
What is Trellus?

Trellus is a power and parallel dialer that works inside your CRM, with real-time coaching and AI practice calls to improve the quality of sales calls. It offers a parallel dialer that can be used directly within your existing sales engagement platform, as well as unique features like voice agents for practice and a "LinkedIn inbox" integration. Trellus is the ideal choice for appointment-setting agencies that want to not only increase their call volume but also improve the performance of their reps and the quality of their appointments.
What is the main difference between Elto Dialer, Kixie, and Trellus for Appointment-Setting Agencies?
The main difference between these three platforms lies in their core focus and approach. Elto Dialer is focused on providing a simple and affordable solution for high-volume outreach. Kixie is focused on providing a comprehensive, all-in-one platform for sales engagement. And Trellus is focused on improving the quality of sales calls through real-time coaching and practice.
Feature Comparison: Elto Dialer vs. Kixie vs. Trellus
Feature Set
All three platforms offer a robust set of features, but there are some key differences that are important for appointment-setting agencies to consider. Elto Dialer offers the most affordable solution, with plans starting at just $5 per user per month. Kixie offers the most comprehensive platform, with features like team SMS and a wide range of CRM integrations. And Trellus offers the most unique features, with real-time AI coaching and voice agents for practice.
Ease of Use
Elto Dialer is designed to be the easiest to use of the three platforms, with a simple and intuitive interface. Kixie and Trellus both have a steeper learning curve, but they also offer more advanced features and customization options.
Security
Security postures differ, so check each vendor’s own documentation. Trellus explains how its Chrome extension handles permissions and call audio on its security page. Kixie also offers a feature called "DNC List Compliance" that can help to ensure that your agency is in compliance with all applicable regulations.
Customization
Kixie offers the most customization options of the three platforms, with the ability to create custom workflows and reports. Elto Dialer and Trellus are less customizable, but they are also easier to use and set up.
Integrations
Kixie offers the most integrations of the three platforms, with over 25 CRM integrations. Elto Dialer offers a seamless integration with Apollo.io, which is a popular tool for appointment-setting agencies. And Trellus offers integrations with a variety of sales engagement platforms, as well as Google Sheets and GoHighLevel.
Device Accessibility
All three platforms run in the browser; Trellus runs as a Chrome extension.
Pricing
Elto Dialer is the cheapest of the three platforms that publicly lists its pricing, with plans starting at just $5 per user per month.
Trellus Pricing
Trellus offers a transparent, tiered pricing model designed to accommodate both individual users and enterprise teams.
The Power plan costs $99.99 per seat per month (see current Trellus pricing) and includes power dialing on every supported platform (including Google Sheets and Clay), voicemail drop, 5 additional phone numbers with spam remediation, and access to LinkedIn inbox.
The Power + Parallel plan is priced at $149.99 per seat per month and adds multi-line parallel dialing, unlimited AI practice calls, 8 additional phone numbers with spam remediation, and higher dialing limits for advanced users.
For teams, Trellus offers custom Business pricing that includes everything in the Power + Parallel plan plus customizable AI research, real-time coaching, team-based analytics, conversational intelligence, and custom reporting—requiring direct contact with their sales team.
Compared to competitors like Elto ($5-$25/month) and Kixie (custom pricing), Trellus positions itself as a premium solution that emphasizes coaching and call quality improvement over pure volume, making it particularly valuable for appointment-setting agencies focused on rep performance and training.
Customer Support
All three platforms offer customer support via email and phone. Kixie also offers dedicated customer success managers for their enterprise customers.
What’s best for your appointment-setting agency?
•Elto Dialer is the best choice for agencies that are looking for a simple, affordable, and easy-to-use solution for high-volume outreach.
•Kixie is the best choice for agencies that are looking for a comprehensive, all-in-one platform to manage their entire sales process.
•Trellus is the best choice for agencies that are looking to improve the quality of their appointments and the performance of their reps through real-time coaching and practice.
Frequently Asked Questions
1. What is an appointment-setting agency?
An appointment-setting agency is a company that specializes in setting appointments for other businesses. This can include services like cold calling, lead generation, and appointment scheduling.
2. What are the benefits of using a dialer for appointment setting?
The main benefit of using a dialer for appointment setting is that it can help agencies increase their call volume and book more meetings. This can lead to more clients, more revenue, and a more efficient sales process.
3. What is real-time coaching?
Real-time coaching is a feature that provides sales reps with feedback and suggestions during live calls. This can help reps improve their performance and handle objections more effectively.
4. What is Caller ID health?
Caller ID health is a measure of how likely a phone number is to be flagged as spam. A good Caller ID health score can help to improve connect rates and ensure that your calls are getting through to prospects.
