Apollo vs Klenty: Which is Best for Email Deliverability in 2025?

Tired of your sales emails ending up in spam? You’re not alone.

It’s a common problem, and the wrong sales engagement platform can worsen it. Should you choose between Apollo vs Klenty?

That’s a smart move. Both are popular options, but one is the winner when it comes to landing in inboxes. 

In this post, we’ll explain how Apollo and Klenty handle email deliverability so you can choose the best tool to boost your sales.

Overview

We’ve spent weeks testing both Apollo and Klenty to give you the most accurate comparison. 

We analyzed their features, sent hundreds of emails, and analyzed the results to determine which platform excels at email deliverability.

What is Apollo?

Have you ever wished you had a superpower for finding leads and closing deals? That’s kind of what Apollo feels like.

It’s packed with tools to help you build lists of ideal customers, contact them the right way, and track everything so you can see what’s working.

Think of it as your all-in-one sales command center.

Also, explore our favorite Apollo alternatives…

Key Benefits

• Mature & Feature-Rich: Apollo’s been around, so it’s packed with features like caching, state management, and more.
• Huge Community: Tons of developers use Apollo. You’ll find plenty of tutorials and support.
• Flexible: Works with any lead generation tool and integrates well with popular front-end frameworks.
• Full Stack Solution: Apollo offers tools for both the client and server side of your lead generation tool.

Pricing

• Free: Great for getting started and smaller projects.
• Basic: Starts at $49/month per user. 900 Mobile Credits/year
• Professional: Starts at $79/month per user. 1,200 Mobile Credits/year
• Organization: Starts at $119/month per user. 2,400 Mobile Credits/year

What is Klenty?

Need a simple way to manage your sales outreach? Klenty is your friend.

It helps you personalize emails, automate follow-ups, and track your progress without getting overwhelmed.

If you’re looking for a straightforward tool that works, Klenty might be your perfect match.

Also, explore our favorite Klenty alternatives…

Key Benefits

• Boost reply rates by up to 46%: Klenty’s personalized email sequences and automated follow-ups help you stay top-of-mind with prospects.
• Save 20+ hours per week: Automate repetitive tasks and free up your time to focus on selling.
• Increase your meetings booked by 300%: Klenty’s powerful cadence builder helps you create effective outreach strategies that get results.

Pricing

Klenty offers a variety of pricing plans to fit your needs and budget. Here’s a quick overview:

• Starter: $60/month
• Growth: $85/month
• Plus: $119/month

Feature Comparison

Now, let’s get down to the nitty-gritty and compare the most essential features for email deliverability.

Apollo and Klenty offer potent tools, but each has strengths and weaknesses.

1. Email Deliverability Tools

• Apollo.io is a cloud-based sales engagement platform that helps sales teams automate their sales outreach. It provides access to email deliverability tools designed to help your emails land in the primary tab across different email service providers. Apollo.io uses dynamic formulas to change the content of your emails based on spam factors and allows you to A/B test different email templates to see which ones perform best. You can also limit the number of emails you send daily and stagger email sending irregularly to avoid being flagged as spam.
• Klenty is a sales engagement platform that helps sales teams automate their sales outreach. It offers features like email warm-up and spam score checking to improve deliverability. However, one of its cons is that it lacks the advanced deliverability tools that Apollo.io offers, such as dynamic formulas and A/B testing.

2. Email Personalization

• Klenty offers advanced email personalization, allowing you to tailor your messages based on when the prospect receives and opens the email. This can help you increase your open and response rates.
• Apollo.io also offers email personalization, but it’s less advanced than Klenty’s. You can use merge tags to insert basic information like the prospect’s name and company, but you can’t personalize your emails based on their behavior.

3. Sales Automation

• Apollo.io is a cloud-based sales engagement platform that helps sales teams automate their sales outreach. It includes email sequences, automated follow-ups, and task management.
• Klenty is a sales engagement platform offering sales automation features. However, its features are not as comprehensive as Apollo.io’s. For example, Klenty doesn’t offer task management.

4. Integrations

• Apollo.io integrates with a wide range of CRMs and other sales tools. This tight integration ensures an up-to-date CRM and allows you to streamline your sales process.
• Klenty also integrates with some popular CRMs but doesn’t have as many integrations as Apollo.io.

5. Sales Dialer

• Apollo.io has a built-in sales dialer that allows you to place up to five calls simultaneously with one click, helping you connect with more prospects.
• Klenty does not have a built-in sales dialer. You must integrate with a third-party dialer to make calls from within the platform.

6. Reporting and Analytics

• Apollo.io provides detailed reporting and analytics on your sales outreach and follow-up efforts. This data can help you identify areas for improvement in your sales process.
• Klenty provides reporting and analytics, but they’re less comprehensive than Apollo.io’s.

7. Pricing

• Apollo.io is more expensive than Klenty but offers a broader range of features and more advanced functionality.
• Klenty is a more affordable option, making it a good choice for startups and small businesses. Its pricing is also more straightforward than Apollo.io’s.

What to Look for When Choosing a Cold Email Tool?

• Ease of Use: You don’t want to spend hours figuring out how to send a simple email. Look for a platform with an intuitive interface and straightforward navigation.
• Deliverability Features: A high sender score is crucial. Prioritize tools with features like email warm-up, spam score checkers, and deliverability testing.
• Personalization Options: Generic emails get ignored. Choose a tool that lets you personalize emails at scale using dynamic content and custom fields.
• Automation Capabilities: Save time and boost efficiency with features like automated email sequences, follow-ups, and task management.
• Integrations: Seamless integrations with your existing CRM and other sales tools are essential for a smooth workflow.
• Reporting and Analytics: Track your progress and identify areas for improvement with detailed reporting and analytics.
• Pricing: Consider your budget and choose a plan that offers the features you need at an affordable price.
• Customer Support: Reliable customer support can be a lifesaver when encountering issues or having questions.
• Scalability: Choose a tool that can grow with your business as your needs evolve.
• Security: Ensure your data is safe with a platform prioritizing security and compliance.

Final Verdict

So, which sales engagement tool comes out on top? For us, it’s Apollo io. Why? Because it’s the best for email deliverability.

Apollo.io provides access to more advanced features that help your emails land in the primary tab. 

You can send per day and stagger email sending to avoid spam filters.

It also has powerful automation to save you time and a built-in dialer that allows you to place up to five calls simultaneously with one click.

Klenty is a promising startup option because of its simple design and pricing.

However, Apollo.io is better for mature sales teams that depend heavily on email outreach.

Apollo.io has more advanced features and better deliverability tools. It is one of the best sales engagement platforms for helping your entire sales organization succeed.

Ultimately, your best choice will depend on your specific needs and budget.

But if you’re serious about improving your email deliverability and boosting your sales, Apollo.io is the clear winner.

More of Apollo

Here’s a comparison of Apollo with its alternatives, highlighting their unique strengths:

• Apollo vs Instantly: Apollo offers a vast lead database and comprehensive sales intelligence. Instantly focuses on lightning-fast email deliverability and unlimited warm-up capabilities.
• Apollo vs Snov IO: Apollo provides an extensive B2B database and multi-channel sales engagement. Snov IO emphasizes email finding, verification, and automated email drip campaigns.
• Apollo vs Hunter IO: Apollo is an all-in-one platform for lead generation and outreach automation. Hunter IO specializes in finding and verifying professional email addresses.
• Apollo vs Reply IO: Apollo offers a large database and robust sales intelligence with outreach. Reply IO provides advanced AI-powered email automation and multi-channel sequences.
• Apollo vs UpLead: Apollo integrates lead data with outreach automation. UpLead focuses on delivering highly accurate, verified B2B contact information.
• Apollo vs Mailshake: Apollo combines lead prospecting with automated email sequences. Mailshake excels in personalized cold email outreach and deliverability optimization.
• Apollo vs Lemlist: Apollo boasts a massive contact database and comprehensive sales engagement. Lemlist focuses on hyper-personalized cold emails with unique visual elements.
• Apollo vs Woodpecker: Apollo provides a large database and multi-channel outreach. Woodpecker is a dedicated cold email automation tool focused on deliverability.
• Apollo vs Smartlead: Apollo offers a broad sales intelligence platform with outreach capabilities. Smartlead emphasizes scalable cold email campaigns with advanced deliverability features.
• Apollo vs Saleshandy: Apollo delivers extensive lead data and integrated outreach. Saleshandy offers email tracking, automation, and a unified inbox for outreach.
• Apollo vs Warmbox: Apollo’s broader platform includes a basic warm-up. Warmbox is a specialized tool dedicated to advanced email warm-up and sender reputation.
• Apollo vs Maildoso: Apollo offers a comprehensive lead database with integrated outreach. Maildoso focuses on maximizing email deliverability and unlimited mailboxes.
• Apollo vs Manyreach: Apollo provides a rich B2B database and broad sales engagement tools. Manyreach focuses on highly scalable email campaigns with deliverability features.
• Apollo vs Warmy: Apollo is a comprehensive sales intelligence platform with outreach. Warmy is a dedicated email warm-up and deliverability monitoring service.

More of Klenty

Here’s how Klenty compares with its alternatives in the realm of sales engagement:

• Klenty vs Instantly: Klenty offers advanced list management and integrates with CRMs for sales automation. Instantly prioritizes unlimited email warm-up and deliverability with a built-in lead finder.
• Klenty vs Snov IO: Klenty emphasizes robust email automation and sales engagement features. Snov IO excels in email finding, verification, and broader lead generation.
• Klenty vs Hunter IO: Klenty focuses on email automation and multi-channel sales engagement. Hunter IO is primarily a tool for finding and verifying email addresses.
• Klenty vs Reply IO: Klenty excels in email personalization and deliverability for sales teams. Reply IO offers a more comprehensive multi-channel outreach platform, including a built-in dialer.
• Klenty vs UpLead: Klenty streamlines sales automation and email sequencing. UpLead specializes in providing high-quality, verified B2B contact data with high accuracy.
• Klenty vs Mailshake: Klenty offers robust sales engagement with advanced automation and calling capabilities. Mailshake focuses on streamlined cold email campaigns and simpler automation.
• Klenty vs Lemlist: Klenty provides extensive personalization options and a wide range of automation. Lemlist emphasizes hyper-personalization with dynamic content and email warm-up features.
• Klenty vs Woodpecker: Klenty enables multi-channel outreach and comprehensive sales engagement. Woodpecker focuses on secure, personalized cold email campaigns with strong deliverability.
• Klenty vs Smartlead: Klenty provides comprehensive sales automation and CRM integrations. Smartlead specializes in superior email deliverability and robust email automation at scale.
• Klenty vs Saleshandy: Klenty focuses on prospecting and automating outreach at scale. Saleshandy emphasizes email productivity features and detailed engagement analytics.
• Klenty vs Warmbox: Klenty offers basic email warm-up within its outreach platform. Warmbox is a dedicated, specialized tool for enhancing email deliverability through warm-up.
• Klenty vs Maildoso: Klenty is a comprehensive sales engagement platform. Maildoso offers email list management and basic warm-up within a broader email marketing context.
• Klenty vs Manyreach: Klenty provides CRM integration and advanced list management. Manyreach focuses on scaling email campaigns with unlimited prospects and mailbox management.
• Klenty vs Warmy: Klenty includes some email warm-up features to improve deliverability. Warmy is a dedicated tool solely focused on optimizing email deliverability through its warm-up network.

Frequently Asked Questions