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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Apollo.io

    Score8.5 out of 10
    N/AApollo is a sales platform that helps revenue teams find and engage leads, automate outreach, manage deals, and enrich data.

    $59

    per month per user

    Customer.io

    Score9.1 out of 10
    Small Businesses (1-50 employees)
    Customer.io is a customer engagement platform that enables marketers to build sophisticated automated messaging campaigns. With access to real-time behavioral data, users can create personalized and relevant messages to engage and retain customers. This includes sending emails, push notifications, SMS, in-app messages, and more through a visual building experience. Built for scale, Customer.io boasts users among over 5,300 companies, sending over 17 billion messages per year.

    $100

    per month

    Pricing
    Apollo.ioCustomer.io
    Editions & Modules
    Basic
    $59
    per month per user
    Professional
    $99
    per month per user
    Organization
    $1,188
    per year per user
    No answers on this topic
    Offerings
    Pricing Offerings
    Apollo.ioCustomer.io
    Free Trial
    YesYes
    Free/Freemium Version
    YesNo
    Premium Consulting/Integration Services
    YesYes
    Entry-level Setup FeeOptionalOptional
    Additional Details20% discount for annual billing on the Basic and Professional plans.Essentials: For startups and small teams engaging customers on their mobile and web apps. - Up to 5,000 profiles*, Send Emails, Push, In-App, and SMS, Visual Workflow Builder, Segmentation, Two Workspaces, Email Support, Customer Community Premium: For high-growth companies looking for greater control over their messaging outcomes. - Everything in Essentials, Custom Data + Message Volume, Premium Product Features, Additional Workspaces, 90-day Onboarding Program, Premium Email & Chat Support, Managed Deliverability, Dedicated IPs, Parcel Pro Licenses, HIPAA Compliance Enterprise: For at-scale companies looking to create world-class customer experiences. - Everything in Premium, Managed Infrastructure*, Customer Success Manager, Quarterly Success Reviews, Technical Account Manager*, Audit Logging & Data Governance*, Parcel Business Licenses, Migration Support*, *Available by consultation.
    More Pricing Information
    Community Pulse
    Apollo.ioCustomer.io
    Considered Both Products
    Apollo.io
    No answer on this topic
    Customer.io
    No answer on this topic
    Key User Insights
    Would buy again
    93%
    Would buy again
    197 Answers
    100%
    Would buy again
    14 Answers
    Delivers good value for the price
    97%
    Delivers good value for the price
    188 Answers
    100%
    Delivers good value for the price
    11 Answers
    Happy with the feature set
    97%
    Happy with the feature set
    206 Answers
    100%
    Happy with the feature set
    14 Answers
    Lived up to sales and marketing promises
    95%
    Lived up to sales and marketing promises
    163 Answers
    100%
    Lived up to sales and marketing promises
    9 Answers
    Implementation went as expected
    93%
    Implementation went as expected
    168 Answers
    100%
    Implementation went as expected
    10 Answers
    Features
    Apollo.ioCustomer.io
    Prospecting
    Comparison of Prospecting features of Apollo.io and Customer.io
    Feature
    Apollo.io
    8.2
    197 Ratings
    6% above category average
    Customer.io
    -
    Ratings
    Advanced search8.4192 Ratings00 Ratings
    Identification of new leads8.2192 Ratings00 Ratings
    List quality7.8195 Ratings00 Ratings
    List upload/download8.4183 Ratings00 Ratings
    Ideal customer targeting8.0190 Ratings00 Ratings
    Load time/data access8.2193 Ratings00 Ratings
    Sales Intelligence Data Standards
    Comparison of Sales Intelligence Data Standards features of Apollo.io and Customer.io
    Feature
    Apollo.io
    8.2
    195 Ratings
    6% above category average
    Customer.io
    -
    Ratings
    Contact information8.3195 Ratings00 Ratings
    Company information8.4195 Ratings00 Ratings
    Industry information8.0193 Ratings00 Ratings
    Data Augmentation & Lead Qualification
    Comparison of Data Augmentation & Lead Qualification features of Apollo.io and Customer.io
    Feature
    Apollo.io
    7.8
    192 Ratings
    5% above category average
    Customer.io
    -
    Ratings
    Lead qualification process7.9176 Ratings00 Ratings
    Smart lists and recommendations7.5176 Ratings00 Ratings
    Salesforce integration8.1114 Ratings00 Ratings
    Company/business profiles8.1183 Ratings00 Ratings
    Alerts and reminders7.7165 Ratings00 Ratings
    Data hygiene7.5183 Ratings00 Ratings
    Automatic data refresh7.5173 Ratings00 Ratings
    Tags7.8148 Ratings00 Ratings
    Filters and segmentation8.3178 Ratings00 Ratings
    Sales Intelligence Email Features
    Comparison of Sales Intelligence Email Features features of Apollo.io and Customer.io
    Feature
    Apollo.io
    7.8
    170 Ratings
    5% above category average
    Customer.io
    -
    Ratings
    Sales email templates7.6169 Ratings00 Ratings
    Append emails to records8.0155 Ratings00 Ratings
    Best Alternatives
    Apollo.ioCustomer.io
    Small Businesses
    Owler
    Score9.7 out of 10
    Simplify360
    Score7.8 out of 10
    Medium-sized Companies
    Clay
    Score9.3 out of 10
    Braze
    Score8.7 out of 10
    Enterprises
    LinkedIn Sales Navigator for Gmail (discontinued)
    Score8.5 out of 10
    SAP Service Cloud
    Score8.5 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Apollo.ioCustomer.io
    Likelihood to Recommend
    8.6
    (218 ratings)
    9.1
    (20 ratings)
    Likelihood to Renew
    8.5
    (6 ratings)
    -
    (0 ratings)
    Usability
    8.3
    (189 ratings)
    9.2
    (12 ratings)
    Support Rating
    7.0
    (6 ratings)
    10.0
    (1 ratings)
    Implementation Rating
    5.5
    (1 ratings)
    -
    (0 ratings)
    User Testimonials
    Apollo.ioCustomer.io
    Likelihood to Recommend
    Apollo.io
    Based on my experience using Apollo.io, it is well-suited for organizations like startups that are actively looking to generate new leads to market their products, and for direct marketing using the Apollo.io mail system and filtering leads by locality, sector, or designation.
    Incentivized
    Read full review
    Customer.io
    Talking from the perspective of a marketer at a SaaS with average. 50K email subscribers, Customer IO has been an excellent tool for us. Our requirements include sending users newsletters, marketing emails, and transactional emails, running lead-nurturing campaigns, and more. For a comprehensive use case like ours, CustomerIO is great. While it also has a learning curve, when you have such requirements, it’s worth it. I don’t think CustomerIO is the best fit if you have basic requirements like only weekly newsletter emails.
    Incentivized
    Read full review
    Pros
    Apollo.io
    • contacts with verified emails
    • companies according to their economic sector
    • companies based on their size and revenue
    • companies based on their location
    • contactos con correos verificados
    • empresas de acuerdo a su sector económico
    • empresas de acuerdo a su tamaño y facturación
    • empresas de acuerdo a su ubicación
    Incentivized
    Read full review
    Customer.io
    • Managing users, attributes and events. You are easily able to modify any user, based on their ID, and add or remove attributes, assign events to them. That makes it very easy to segment later and to assign them to several campaigns based on behavior. Just a warning: this integration isn't so easy (at least it wasn't for us).
    • Creating workflows of campaigns is very easy. You can quickly create behavioral campaigns based on attributes, segments and add elements to the workflow. You can send an email, then wait, then send another, then exit the campaign if they converted, etc. The workflow is easy to configure and very powerful for automation.
    • We don't use many email templates (we make them in MJML) but it's very easy to add senders, to change templates and in general to test designs.
    • Deliverability works very well, at least for us. It sends emails pretty fast and without issues.
    • Exporting is very quick and easy. Importing wasn't a feature until recently, but it works well too.
    • Seeing activity it's also useful. In general, logs are awesome (be it of a customer, of activity on the site, email sends, etc.).
    • We don't use environments, but it might be very useful for a bigger company.
    Incentivized
    Read full review
    Cons
    Apollo.io
    • Apollo.io's sync to Salesforce is incredibly finnicky and created a large number of duplicates.
    • Apollo.io's workflow functionality is rigid and doesn't play nicely with middleware like Zapier.
    • Apollo.io is focused on helping you spin up many different emails and phone numbers in a spammy manner instead of focusing on domain reputation.
    Incentivized
    Read full review
    Customer.io
    • Price is quite expensive for Premium or once you get into high volumes of contacts.
    • Depending on how you'll use it, it may require some help from developers to set up.
    • Despite the support being great, you have to email them, there's not chat feature.
    Read full review
    Likelihood to Renew
    Apollo.io
    at this moment Apollo.io seems to be the perfect tool that has mastered all aspects of outbound marketing and CRM to handle and manage sales cycle.
    Incentivized
    Read full review
    Customer.io
    No answers on this topic
    Usability
    Apollo.io
    I gave it a 7 because it doesn't help you out if you're an organization that's call-heavy, because a lot of times the numbers aren't the best. It's not accurate. If you're somebody who's email and outbound and your goal is to find that, then that's cool. It works well for it. Some of the features, the AI tools, and some additional features they have are just too complex. Sometimes it's easy to use, but at the same time, there are tools that are not efficient, and it's like, "Where is this coming from?"Especially if you're looking for your niche, whatever industry you're in, and the target word, sometimes it can't find it. You can see what people are searching for, and it just doesn't add up. If you're trying to get very, very detailed, it's not the best. Sometimes it's going to depend on your industry, of course.
    Incentivized
    Read full review
    Customer.io
    Super intuitive and easy interface to start off with. There are not a lot of guides and the documentation is helpful but not super extensive, but even if you're a little technical, you can easily figure most of the things out by yourself. Everything is super easy to start with and the platform does not overwhelm you with a lot of options, or data.
    Incentivized
    Read full review
    Support Rating
    Apollo.io
    The team wants to solve probelms, but we are finding that they don't know how to solve the more technical issues quickly. I suspect that they don't have a mature process for escalations, and they don't have a usable knowledge base article repository. They seems to push emails around to let us know that people are working on the issues to find solutions, but this takes weeks and oftentimes still leaves us without a resolution.
    Incentivized
    Read full review
    Customer.io
    My experience with their support team has always been great. Very quick to respond, have an online chat, and are very helpful. They helped me resolve any issues I've had every time in a professional and knowledgeable manner. We've now switched to another tool, and I can't even compare the service level we get there to customer.io
    Incentivized
    Read full review
    Alternatives Considered
    Apollo.io
    We found the contact data from Apollo.io was more reliable than Instantly.ai. We used Instantly.ai for about 6 months before stopping our use of it. Growbots doesn't give you as much volume for the same price at Apollo.io. However, we did close sales with Growbots, and we did not with Apollo.io. It could have just been our unique experience, but that's what happened.
    Incentivized
    Read full review
    Customer.io
    Customer.io was really the first pure, full-featured drip email program on the market and as far as I know, it's still the simplest and best overall for that specific function. SendGrid has also added drip campaign features, but I would seriously evaluate Customer.io against any other drip email provider because they really have all the key elements you need to make it work.
    Incentivized
    Read full review
    Return on Investment
    Apollo.io
    • Apollo.io has helped me find a good set of new target audience for the business that I am in, essentially helping me build a prospective line and grow my lead database by 25 to 30% where I lack a certain skill
    • The Apollo.io quality of the data that it has is significantly better through other competitors like Lusha and others
    • In terms of the revenue increase, there have been certain instances where I have found a new acquirer that essentially I would not have found in a general scenario and that has help me generate from the new identified lead
    Incentivized
    Read full review
    Customer.io
    • Positive impact on the sales side. I'm not sure about the specific ROI (you have to include the designer and the time it takes to set up) but you certainly get back the investment in a few months, once you are able to scale your email marketing.
    • Customer experience is way better by having more segmented, contextual and accurate messages sent to them.
    • Integration is costly and it will take several days or weeks to be fully achieved. Expect to invest some money on this.
    Incentivized
    Read full review
    ScreenShots

    Apollo.io Screenshots

    Screenshot of people, appearing in ApolloScreenshot of Apollo's data enrichment dashboardScreenshot of a view of unified customer dataScreenshot of Apollo's AI-assisted meetings

    Customer.io Screenshots

    Screenshot of data-driven or manual segments that can be created in the no-code builder for recipient lists, campaign triggers, filters, and conversion goals.Screenshot of the code editor for email, that helps navigate code and iterate.Screenshot of account performance, visible at a glance from the Dashboard view.Screenshot of drag and drop messages, time delays, and branches where desired, to build cross-channel campaigns.Screenshot of triggered campaigns based on forms submissions, customer attributes, customer actions, and dates.Screenshot of localization for global audiences. One message can be delivered in multiple languages.