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# Customer.io vs RudderStack Comparison - What are their main differences?

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Customer.ioRudderStack[+ Add Product](#)

Pricing

**Customer.io**
Free Trial

**$100.00** Usage Based Per Month · Essential

**$1,000.00** Usage Based Per Month · Premium 

**Contact Vendor for Pricing** Usage Based Per Year · Enterprise

**RudderStack**
Free Trial

**$265.00** Flat Rate Per Month · Growth

**Pricing Insights**
from reviews

Perceived Cost

**Customer.io**
$$$$$

**RudderStack**
$$$$$

Average Discount

**Customer.io**
21%14% more

**RudderStack**
7%

Uncover valuable pricing insights from real user feedback to improve your shopping experience.
See it for free

Time to Implement

**Customer.io** 6 months
Based on 100 responses

**RudderStack** 6 months
Based on 100 responses

Return on Investment

**Customer.io** 6 months
Based on 100 responses

**RudderStack** 6 months
Based on 100 responses

 ![Customer.io](https://images.g2crowd.com/uploads/product/hd_favicon/796a98b0661c81fd4f6aa01f2c7b5c2a/customer-io.svg "Customer.io")

 ![RudderStack](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_45cc0dba80be987e2aea49840480f13b/rudderstack%282%29.png "RudderStack")

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**Pros & Cons**
from reviews

**Customer.io**

Ease of Use (250)

Automation (158)

Learning Curve (98)

Missing Features (83)

**RudderStack**

Ease of Use (18)

Customer Support (16)

Learning Curve (10)

Limited Customization (5)

Integrations

**Customer.io**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_d06214a78a4c42bbd28cfa5c5d8b7b38/acuity-scheduling.png "Product Avatar Image")

Acuity Scheduling

](https://www.g2.com/products/acuity-scheduling/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_3d8a73f469261c6614cb56ce5698db3f/adroll.png "Product Avatar Image")

AdRoll

](https://www.g2.com/products/adroll/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_3f65e03dad098005646f58fdebc87312/aha.png "Product Avatar Image")

Aha!

](https://www.g2.com/products/aha/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_d8d487b67574b56a5ad57a2f0f159a30/airtable.jpg "Product Avatar Image")

Airtable

](https://www.g2.com/products/airtable/reviews)[
View all
](https://www.g2.com/products/customer-io/integrations)

**RudderStack**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_50828ef2b93af30b29edd9061533c3b9/activecampaign.jpg "Product Avatar Image")

ActiveCampaign

](https://www.g2.com/products/activecampaign/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_f5233c4966be094ed2ee71263943d33f/adjust.jpeg "Product Avatar Image")

Adjust

](https://www.g2.com/products/adjust/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_5a7938ffd6497884772dc39786f9e1e2/adobe-analytics.png "Product Avatar Image")

Adobe Analytics

](https://www.g2.com/products/adobe-analytics/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_d6b6650425eafc5c72f230cad744ad29/adobe-marketo-engage.png "Product Avatar Image")

Adobe Marketo Engage

](https://www.g2.com/products/adobe-marketo-engage/reviews)[
View all
](https://www.g2.com/products/rudderstack/integrations)

Screenshots

**Customer.io**
 ![Customer.io screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/56070/G2-Homepage---Customer.io.jpg)

**RudderStack**
 ![RudderStack screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1229615/RudderStack-Architecture-Diagram.png)

**Ratings**
from reviews

Meets Requirements

**Customer.io**

**8.6** /10

Based on 775 responses

**RudderStack**

**9.0** /10

Based on 48 responses

Ease of Use

**Customer.io**

**8.3** /10

Based on 802 responses

**RudderStack**

**8.9** /10

Based on 49 responses

Ease of Setup

**Customer.io**

**8.0** /10

Based on 585 responses

**RudderStack**

**8.8** /10

Based on 37 responses

Ease of Admin

**Customer.io**

**8.6** /10

Based on 335 responses

**RudderStack**

**9.3** /10

Based on 34 responses

Quality of Support

**Customer.io**

**8.6** /10

Based on 695 responses

**RudderStack**

**9.6** /10

Based on 47 responses

Has the product been a good partner in doing business?

**Customer.io**

**8.9** /10

Based on 333 responses

**RudderStack**

**9.5** /10

Based on 35 responses

Product Direction (% positive)

**Customer.io**

**9.1** /10

Based on 755 responses

**RudderStack**

**9.7** /10

Based on 45 responses

**Features**
ratings from reviews

Customer Data Platform (CDP)

**7.1** /10

Based on 102 responses

**7.0** /10

Based on 18 responses

Marketing Automation

**7.9** /10

Based on 642 responses

Not enough data

Transactional Email

**8.1** /10

Based on 288 responses

Not enough data

Uncover more feature rated insights from real users to improve your shopping experience.

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Event Stream Processing

Not enough data

**8.8** /10

Based on 7 responses

Push Notification

**8.1** /10

Based on 125 responses

Not enough data

Data Governance

Not enough data

**8.4** /10

Based on 8 responses

SMS Marketing

**7.4** /10

Based on 95 responses

Not enough data

iPaaS

Not enough data

**8.8** /10

Based on 9 responses

E-Commerce Data Integration

Not enough data

**6.8** /10

Based on 7 responses

Reverse ETL

Not enough data

**8.2** /10

Based on 13 responses

Personalization

**5.8** /10

Based on 36 responses

Not enough data

Mobile Marketing

**7.4** /10

Based on 83 responses

Not enough data

User Insights

**Reviewers' Company Size**

Small-Business(50 or fewer emp.)
60.0%

Mid-Market(51-1000 emp.)
37.0%

Enterprise(\> 1000 emp.)
3.0%

Small-Business(50 or fewer emp.)
60.0%

Mid-Market(51-1000 emp.)
37.0%

Enterprise(\> 1000 emp.)
3.0%

Small-Business(50 or fewer emp.)
45.1%

Mid-Market(51-1000 emp.)
52.9%

Enterprise(\> 1000 emp.)
2.0%

Small-Business(50 or fewer emp.)
45.1%

Mid-Market(51-1000 emp.)
52.9%

Enterprise(\> 1000 emp.)
2.0%

**Reviewers' Industry**

[![Customer.io](https://images.g2crowd.com/uploads/product/hd_favicon/796a98b0661c81fd4f6aa01f2c7b5c2a/customer-io.svg "Customer.io")](https://www.g2.com/products/customer-io/reviews)
Customer.io

Computer Software
14.7%

Financial Services
13.9%

Information Technology and Services
8.7%

Marketing and Advertising
8.6%

Health, Wellness and Fitness
4.7%

Other
49.3%

[![RudderStack](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_45cc0dba80be987e2aea49840480f13b/rudderstack%282%29.png "RudderStack")](https://www.g2.com/products/rudderstack/reviews)
RudderStack

Computer Software
19.6%

Information Technology and Services
9.8%

Retail
7.8%

Hospital & Health Care
7.8%

Financial Services
5.9%

Other
49.0%

Alternatives

**Customer.io Alternatives**

 ![Braze](https://images.g2crowd.com/uploads/product/hd_favicon/048489136cfe3c3bae96cb6be5abaa04/braze.svg "Braze")

[
Braze
](/products/braze/reviews)

 ![Klaviyo](https://images.g2crowd.com/uploads/product/hd_favicon/b6df098261e7029181e27856a1b3934b/klaviyo.svg "Klaviyo")

[
Klaviyo
](/products/klaviyo/reviews)

 ![OneSignal](https://images.g2crowd.com/uploads/product/hd_favicon/8673c259241abc89782745e0f4687f64/onesignal.svg "OneSignal")

[
OneSignal
](/products/onesignal/reviews)

 ![Iterable](https://images.g2crowd.com/uploads/product/hd_favicon/1bf77060f8ae9c8d49864d81c92f41d9/iterable.svg "Iterable")

[
Iterable
](/products/iterable/reviews)

**RudderStack Alternatives**

 ![Hightouch](https://images.g2crowd.com/uploads/product/hd_favicon/4e0c9eac0b98e80958b8094955e8a4b7/hightouch.svg "Hightouch")

[
Hightouch
](/products/hightouch/reviews)

 ![Twilio Segment](https://images.g2crowd.com/uploads/product/hd_favicon/2cc23fc6f4c2974f7ceb353c91b99af6/twilio-segment.svg "Twilio Segment")

[
Twilio Segment
](/products/twilio-segment/reviews)

 ![Tealium](https://images.g2crowd.com/uploads/product/hd_favicon/ab5785ba5f2b55a17cd0b0784fd34381/tealium-2026-07-21.svg "Tealium")

[
Tealium
](/products/tealium-2026-08-12/reviews)

 ![Bloomreach](https://images.g2crowd.com/uploads/product/hd_favicon/acd3373828bc7684cdbada5df73826f4/bloomreach-bloomreach.svg "Bloomreach")

[
Bloomreach
](/products/bloomreach-bloomreach/reviews)