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Customer.io review

Notification & customer messaging platformscustomer.io★★★☆☆ 2.9/5 our score

Customer.io in short

Customer.io is a notification platform routing email, SMS, and push through one API. It simplifies multi-channel sending, with cost tracking to your actual channel mix.

Verdict: Customer.io unifies multi-channel notifications behind one API, though per-channel pricing requires planning at volume.

Pros

  • …6 years later. They seriously need to work on their quality control as they would have kept me as an elite controller customer had each con
  • If a restaurant was concerned about late diners they wouldn’t offer later reservations. It’s a business. If they intend to stay in business
  • Organics is uh one tough customer lmao beautiful ink though! Someone recommended taking a shower and washing your hair, that should get it o
  • One API across email, SMS, push, and more

Cons

  • …the head office of a scam company that flogs 4WDCampingGear. Got a phone call from our Perth store, saying they told a customer he needed t
  • Tf is wrong with her hair?? And no accents dont just come and go. Not natural ones. I can put my customer service voice on for instance, my
  • Definitely shouldn't have set it up. If you wanted to help her give her the home depot customer service line to call. Then you could also ca
  • As someone who was recorded for denying an insane customer for returning something that was out of the return policy and immediately turned
  • Pricing per channel adds up
  • Clunky, dated interface
  • Disappointing in practice

What people say on Reddit

All 24
15 critical4 mixed5 positive
Criticalr/dataisbeautifulOct 2026▲ 20

oc this is how far you can get by car in 8 hours

…the head office of a scam company that flogs 4WDCampingGear. Got a phone call from our Perth store, saying they told a customer he needed to return a faulty product to the shop, and he did. I asked what their address was, for a replace to be shipped, as the store was out of stock. Broome. I…

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Criticalr/MikaylaNogueiraOct 2026▲ 19

wheres the accent

Tf is wrong with her hair?? And no accents dont just come and go. Not natural ones. I can put my customer service voice on for instance, my no cussing and no regional slang or whatever, but I still have my houston texas accent. Try again garbage bag

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Criticalr/doordashOct 2026▲ 18

is it normal for the driver to have to do inhome

Definitely shouldn't have set it up. If you wanted to help her give her the home depot customer service line to call. Then you could also call on your way to your next delivery and raise hell on her behalf. Just ask her name and jot down her info and call. Unless you saw proof in the form of an…

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What people say on G2

All 4
1 critical1 mixed2 positive
Criticalg2

Page 10 | Customer.io Reviews 2026: Details, Pricing, & Features | G2

title: Customer.io Reviews meta_title: 'Customer.io Reviews 2026: Details, Pricing, & Features | G2' ... to find out how Customer.io works for a business like yours. ... # Customer.io Reviews & Product Details Customer.io is the leading customer engagement platform for product-led organizations. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? ... AI integration is HUGE for us, and is such an added benefit of Customer.io. I really appreciate Customer.io's consistent innovation, with tools and resources to help quickly adapt to new features and innovation. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? It can be clunky and tends to freeze. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? ... The Customer.io academy is great, offering many emails with all the features, useful tips, links, and reminders. ... Customer.io gives us the possibility to combine different types like push, in-app, and email to be sent in one campaign. ... Despite the overwhelming setup, Customer.io is perfect for fast-growing needs, especially for onboarding and re-engaging users. ... What do you dislike about Customer.io? ... The setup is not easy and quite overwhelming, but we are growing fast and were looking for a tool like Customer.io. ... I find Customer.io invaluable in my day-to-day work as a solo marketer because it powers our entire CRM and marketing automation strategy efficiently. ... While the AI agent in Customer.io is incredible when it works, it still has noticeable rough edges that need improvement. ... I use Customer.io for sending emails to engage and retain users. ... Customer.io can work on this single most aspect. ... "Powerful, No-Dev Campaigns with Precise Segmentation in Customer.io" ... What do you dislike about Customer.io? ... Customer.io does not expose event counts through Liquid or JavaScript, so if you want to personalize based on how many times something has happened, like number of deposits or trades, you have to either engineer a workaround through event-triggered attribute increments or do a CSV backfill. ... The core problem Customer.io solves for us is coordinating email, push, and in-app messaging across the full user lifecycle without those channels stepping on each other. ... Customer.io lets us build that as a single coherent system rather than a patchwork of disconnected campaigns. ... "Customer.io Makes Messaging Automation Intuitive, Reliable, and Efficient" ... What do you dislike about Customer.io? One limitation I've noticed with Customer.io is that once a campaign is archived, it cannot be edited. ... Customer.io solves the problem of managing and automating customer communication across multiple channels. ... What do you dislike about Customer.io? ... What do you dislike about Customer.io?

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Mixedg2

Top 10 Customer.io Alternatives & Competitors in 2026 | G2

Top 10 Customer.io Alternatives & Competitors in 2026 | G2 # Top 10 Customer.io Alternatives & Competitors ... When comparing Customer.io with other tools, reviewers most often evaluate email campaigns and features as key differentiators. The best overall alternative to Customer.io is Iterable, rated ~4.4 stars on G2 from 827+ reviewers. ... Other well-known alternatives to Customer.io are: - Braze – known for intuitive and automation (G2 star rating ~4.5) ... ## Top 10 Alternatives to Customer.io Recently Reviewed By G2 Community ... The best alternatives to Customer.io, according to G2 user ratings and review counts, include Iterable (4.4/5 stars, 824 reviews), Braze (4.5/5 stars, 1683 reviews), and Klaviyo (4.6/5 stars, 1354 reviews). ... Alternatives to Customer.io offer several features not available natively in Customer.io, including application attribution, budgeting, calendaring, custom dashboards, SEO/keyword analytics, search tracking and optimization, social campaigns, social media advertising and engagement, text messaging, and two-way text messaging. ... According to G2 data, both Customer.io and Iterable share an equal average rating of 4.4 out of 5, with Customer.io having 831 reviews and Iterable 824. Customer.io scores higher in meeting requirements (8.7 vs 8.5) by 0.2 points and ease of setup (8.0 vs 7.8) by 0.2 points. It also leads in ease of administration (8.6 vs 8.4) by 0.2 points. Iterable holds a slight advantage in usability (8.4 vs 8.3) by 0.1 points and better support (8.8 vs 8.6) by 0.2 points.

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Positiveg2

Top 10 Alternativas y Competidores de Social Hub.AI

**Compare:** [Social Hub.AI vs HubSpot Marketing Hub](https://www.g2.com/es/compare/hubspot-marketing-hub-vs-social-hub-ai) ... - [HubSpot Marketing Hub vs Customer.io](https://www.g2.com/es/compare/customer-io-vs-hubspot-marketing-hub) ... - [Agentforce Marketing (formerly Salesforce Marketing Cloud) vs Customer.io](https://www.g2.com/es/compare/agentforce-marketing-formerly-salesforce-marketing-cloud-vs-customer-io) ... ### 6. [Customer.io](https://www.g2.com/es/products/customer-io/reviews) By Customer.io ... **Compare:** [Social Hub.AI vs Customer.io](https://www.g2.com/es/compare/customer-io-vs-social-hub-ai) **Compare Customer.io with other alternatives:** - [Customer.io vs HubSpot Marketing Hub](https://www.g2.com/es/compare/customer-io-vs-hubspot-marketing-hub) - [Customer.io vs Agentforce Marketing (formerly Salesforce Marketing Cloud)](https://www.g2.com/es/compare/agentforce-marketing-formerly-salesforce-marketing-cloud-vs-customer-io) - [Customer.io vs Insider One](https://www.g2.com/es/compare/customer-io-vs-insider-one) - [Customer.io vs Klaviyo](https://www.g2.com/es/compare/customer-io-vs-klaviyo) - [Customer.io vs Dotdigital](https://www.g2.com/es/compare/customer-io-vs-dotdigital) - [Customer.io vs Iterable](https://www.g2.com/es/compare/customer-io-vs-iterable) - [Customer.io vs Bloomreach](https://www.g2.com/es/compare/bloomreach-bloomreach-vs-customer-io) - [Customer.io vs WebEngage](https://www.g2.com/es/compare/customer-io-vs-webengage) - [Customer.io vs SAP Engagement Cloud (formerly SAP Emarsys)](https://www.g2.com/es/compare/customer-io-vs-sap-engagement-cloud-formerly-sap-emarsys)

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What people say on Capterra

All 3
0 critical1 mixed2 positive
Mixedcapterra

Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra

title: "Customer.io Reviews 2026. ... description: "Is Customer.io the right Customer Engagement solution for you? ... Customer.io ... # Reviews of Customer.io ... As a brand that has both a website and an app, Customer.io combined everything we needed to send customer journey messages across various channels: Push, in-app, email, and sms. ... It's a bit expensive, especially if you have too many users, since Customer.io bills you based on the number of customers available in your account. ... Customer.io is a powerful marketing automation platform. ... Customer.io gives us complete control over messaging, email, SMS, push, in‑app, with smart workflows and segmentation based on real behavior. ... Additionally, the pricing can be steep for small businesses, which could make it less accessible.Another potential downside is that Customer.io is focused primarily on email marketing, which means that businesses may need to use additional tools to cover other communication channels like social media or SMS.

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Positivecapterra

Customer.io Software Pricing, Alternatives & More 2026

# Customer.io Software Review 2026: Features, Integrations, Pros & Cons ... Customer.io is a customer engagement platform that enables the creation of personalized journeys across email, push notifications, in-app messages, and SMS. ... ### Customer.io ... Customer.io offers Essential from $100 per month, usage-based, including up to 8,000 profiles. ... Customer.io offers email/help desk, FAQ/forum, knowledge base, and chat support. ... Still overall very positive and I would continue to recommend customer.io to other marketing professionals ... Customer.io is a powerful marketing automation platform. ... Je n'ai donc pas pu lancer mes campagnes, je n'ai aucune explication de leur part, mon client n'a plus confiance en moi et moi je n'ai plus confiance en customer.io. ... Après avoir utilisé customer.io à de multiple reprises, je convaincs un de mes clients de passer d'Hubspot à customer.io.

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Positivecapterra

Page 2 - Reviews of Customer.io

title: "Page 2 | Customer.io Reviews 2026. ... description: "Page 2 - Is Customer.io the right Marketing Automation solution for you? ... Customer.io ... # Page 2 - Reviews of Customer.io ... Je n'ai donc pas pu lancer mes campagnes, je n'ai aucune explication de leur part, mon client n'a plus confiance en moi et moi je n'ai plus confiance en customer.io. ... Après avoir utilisé customer.io à de multiple reprises, je convaincs un de mes clients de passer d'Hubspot à customer.io. ... Mon compte n'est pas validé, je ne peux pas lancer mes campagnes et mes messages au customer service restent sans réponse. ... ### "I still love customer.io" ... Still overall very positive and I would continue to recommend customer.io to other marketing professionals ... We have different dedicated areas on customer.io to manage the different languages. ... Too many different little tools when everything is built into Customer.io ... Customer.io is one of my favorite tools at work, so easy to use that I don't even have to teach new people on my team on how to use it, they just do. ... The template creation is very limited, forcing us to use other softwares and exporting the HTML code to customer.io. ... I've been using Customer.io for almost two years and couldn't be happier with our experience! ... I've been using Customer.io for 6 months now and honestly, I don't have any complaints.

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What people say on Trustpilot

All 1
1 critical0 mixed0 positive
Criticaltrustpilot

Customer.io Reviews

# Customer.io Reviews ... Customer.io is a customer engagement platform that helps companies get more impact from every message. ... I tried contacting the customer.io support team regarding a scammer that uses their services. ... "Customer.io is not in a position to independently verify or determine whether a company's business practices, billing practices, or subscription model are deceptive." Based on this response, I come to a conclusion, that if you're in the scamming business, Customer.io would be a perfect fit for you! ... After months of trying to make Customer.io work for our business, I can say with confidence: unless you have a dedicated engineering team and endless patience, look elsewhere. On the surface, Customer.io sells you a dream — a powerful, flexible platform to automate your customer journey and deepen engagement. ... Between the time spent trying to get it to work and the patchy results it delivers, Customer.io ends up being more of a liability than a solution. ... Customer.io might be right for tech-heavy teams who can dedicate serious dev hours to babysit the platform. ... Customer.io is a solid platform for email and messaging automation, offering a lot of flexibility and customization. ... We've been with Customer.io for over 10 years (July 2014 to November 2024) and deeply regret ever doing business with them. Moving email sequences to another provider is painful and costly, Customer.io know this and they fully take advantage of it. ... ## Extremely Disappointed with Customer.io We've had an incredibly frustrating experience with Customer.io, and I feel compelled to share it with others. ... Despite our repeated attempts to seek assistance, Customer.io's support team has been unable to resolve these critical issues. ... Adding insult to injury, Customer.io's management has shown no willingness to offer any kind of compensation or discount for the troubles we've encountered. ... To make matters worse, our integration costs with Customer.io were prohibitively high. ... Customer.io has left us deeply dissatisfied, both with their product and their customer support.

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What people say on All reviews

All 12
2 critical2 mixed8 positive
Criticaltrustpilot

Customer.io Reviews

# Customer.io Reviews ... Customer.io is a customer engagement platform that helps companies get more impact from every message. ... I tried contacting the customer.io support team regarding a scammer that uses their services. ... "Customer.io is not in a position to independently verify or determine whether a company's business practices, billing practices, or subscription model are deceptive." Based on this response, I come to a conclusion, that if you're in the scamming business, Customer.io would be a perfect fit for you! ... After months of trying to make Customer.io work for our business, I can say with confidence: unless you have a dedicated engineering team and endless patience, look elsewhere. On the surface, Customer.io sells you a dream — a powerful, flexible platform to automate your customer journey and deepen engagement. ... Between the time spent trying to get it to work and the patchy results it delivers, Customer.io ends up being more of a liability than a solution. ... Customer.io might be right for tech-heavy teams who can dedicate serious dev hours to babysit the platform. ... Customer.io is a solid platform for email and messaging automation, offering a lot of flexibility and customization. ... We've been with Customer.io for over 10 years (July 2014 to November 2024) and deeply regret ever doing business with them. Moving email sequences to another provider is painful and costly, Customer.io know this and they fully take advantage of it. ... ## Extremely Disappointed with Customer.io We've had an incredibly frustrating experience with Customer.io, and I feel compelled to share it with others. ... Despite our repeated attempts to seek assistance, Customer.io's support team has been unable to resolve these critical issues. ... Adding insult to injury, Customer.io's management has shown no willingness to offer any kind of compensation or discount for the troubles we've encountered. ... To make matters worse, our integration costs with Customer.io were prohibitively high. ... Customer.io has left us deeply dissatisfied, both with their product and their customer support.

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Criticalg2

Page 10 | Customer.io Reviews 2026: Details, Pricing, & Features | G2

title: Customer.io Reviews meta_title: 'Customer.io Reviews 2026: Details, Pricing, & Features | G2' ... to find out how Customer.io works for a business like yours. ... # Customer.io Reviews & Product Details Customer.io is the leading customer engagement platform for product-led organizations. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? ... AI integration is HUGE for us, and is such an added benefit of Customer.io. I really appreciate Customer.io's consistent innovation, with tools and resources to help quickly adapt to new features and innovation. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? It can be clunky and tends to freeze. ... What do you like best about Customer.io? ... What do you dislike about Customer.io? ... The Customer.io academy is great, offering many emails with all the features, useful tips, links, and reminders. ... Customer.io gives us the possibility to combine different types like push, in-app, and email to be sent in one campaign. ... Despite the overwhelming setup, Customer.io is perfect for fast-growing needs, especially for onboarding and re-engaging users. ... What do you dislike about Customer.io? ... The setup is not easy and quite overwhelming, but we are growing fast and were looking for a tool like Customer.io. ... I find Customer.io invaluable in my day-to-day work as a solo marketer because it powers our entire CRM and marketing automation strategy efficiently. ... While the AI agent in Customer.io is incredible when it works, it still has noticeable rough edges that need improvement. ... I use Customer.io for sending emails to engage and retain users. ... Customer.io can work on this single most aspect. ... "Powerful, No-Dev Campaigns with Precise Segmentation in Customer.io" ... What do you dislike about Customer.io? ... Customer.io does not expose event counts through Liquid or JavaScript, so if you want to personalize based on how many times something has happened, like number of deposits or trades, you have to either engineer a workaround through event-triggered attribute increments or do a CSV backfill. ... The core problem Customer.io solves for us is coordinating email, push, and in-app messaging across the full user lifecycle without those channels stepping on each other. ... Customer.io lets us build that as a single coherent system rather than a patchwork of disconnected campaigns. ... "Customer.io Makes Messaging Automation Intuitive, Reliable, and Efficient" ... What do you dislike about Customer.io? One limitation I've noticed with Customer.io is that once a campaign is archived, it cannot be edited. ... Customer.io solves the problem of managing and automating customer communication across multiple channels. ... What do you dislike about Customer.io? ... What do you dislike about Customer.io?

View original on g2
Mixedcapterra

Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra

title: "Customer.io Reviews 2026. ... description: "Is Customer.io the right Customer Engagement solution for you? ... Customer.io ... # Reviews of Customer.io ... As a brand that has both a website and an app, Customer.io combined everything we needed to send customer journey messages across various channels: Push, in-app, email, and sms. ... It's a bit expensive, especially if you have too many users, since Customer.io bills you based on the number of customers available in your account. ... Customer.io is a powerful marketing automation platform. ... Customer.io gives us complete control over messaging, email, SMS, push, in‑app, with smart workflows and segmentation based on real behavior. ... Additionally, the pricing can be steep for small businesses, which could make it less accessible.Another potential downside is that Customer.io is focused primarily on email marketing, which means that businesses may need to use additional tools to cover other communication channels like social media or SMS.

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Customer.io pricing

Details
PlanPriceIncludes
FreeTrial creditsDev
GrowthPer notificationMulti-channel
ScaleVolumeReliability SLAs

Frequently asked questions

Multi-channel?

Yes — email/SMS/push.

Cheap at scale?

Per-channel pricing adds up.

Easy to integrate?

Developer-first APIs.