Introducing G2.ai, the future of software buying.Try now
Compare Customer.io and Knock 
At a Glance
Market Segments
Small-Business (59.5% of reviews)
Small-Business (77.6% of reviews)
Entry-Level Pricing
Starting at $100.00 Per Month
Free
Customer.io
Star Rating
(660)4.4 out of 5
Market Segments
Small-Business (59.5% of reviews)
Pros & Cons
Entry-Level Pricing
Starting at $100.00 Per Month
Free Trial is available
Browse all 3 pricing plansKnock
Star Rating
(139)4.6 out of 5
Market Segments
Small-Business (77.6% of reviews)
Pros & Cons
Entry-Level Pricing
Free
Free Trial is available
Browse all 3 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- G2 reviewers report that Customer.io excels in overall user satisfaction, boasting a significantly higher G2 Score compared to Knock. Users appreciate its customization options and the ability to create personalized marketing campaigns, which enhances customer engagement.
- Users say that Customer.io's interface is intuitive and user-friendly, making it easy to navigate and understand. Recent feedback highlights the platform's real-time behavioral segmentation, which allows for dynamic audience grouping, a feature that many find beneficial for marketing automation.
- According to verified reviews, Knock shines in its notification scheduling capabilities. Users find it particularly useful for managing notifications that need to be sent in the future, streamlining the process and reducing backend complexities.
- Reviewers mention that while Knock has a strong focus on centralizing notifications across multiple applications, it has fewer recent reviews compared to Customer.io, which may indicate a less robust user base or engagement level. This could affect the reliability of user experiences shared.
- Users highlight that Customer.io's implementation process is generally smooth, with many noting that the initial setup was straightforward. This contrasts with some feedback on Knock, where users appreciate the ease of scheduling but may find other aspects of the setup less intuitive.
- G2 reviewers indicate that Customer.io offers a broader range of features, such as email segmentation and triggered notifications, which are highly rated. In comparison, while Knock provides valuable tools for notification management, it may not match the comprehensive feature set that Customer.io offers for marketing automation.
Pricing
Entry-Level Pricing
Customer.io
Essentials
Starting at $100.00
Per Month
For small companies who are gaining momentum.
- Send emails, push, in-app, SMS, webhooks
- Track custom events and attributes
- Visual workflow builder
Knock
Developer
Free
For testing and evaluation, or small-scale deployments.
- Includes 10k notifications a month
- Unlimited channels
- Unlimited notification workflows
Free Trial
Customer.io
Free Trial is available
Knock
Free Trial is available
Ratings
Meets Requirements
8.7
589
9.0
129
Ease of Use
8.3
600
8.7
134
Ease of Setup
7.9
402
8.8
97
Ease of Admin
8.6
276
9.0
58
Quality of Support
8.7
526
9.7
107
Has the product been a good partner in doing business?
9.0
274
9.5
54
Product Direction (% positive)
9.2
578
9.6
133
Features by Category
Email Marketing
8.9
409
|
Verified
Not enough data
8.8
393
|
Verified
Not enough data
8.4
388
|
Verified
Not enough data
8.3
368
|
Verified
Not enough data
Online Marketing
6.3
329
Not enough data
7.9
354
|
Verified
Not enough data
8.3
378
|
Verified
Not enough data
7.9
358
|
Verified
Not enough data
Feature Not Available
Not enough data
Lead Management
7.4
332
|
Verified
Not enough data
7.6
332
Not enough data
8.6
372
|
Verified
Not enough data
6.8
312
Not enough data
7.6
332
|
Verified
Not enough data
7.3
327
|
Verified
Not enough data
7.3
316
Not enough data
7.3
323
|
Verified
Not enough data
Campaign Management
7.7
338
Not enough data
7.0
321
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Social
Feature Not Available
Not enough data
6.5
307
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Reporting & Analytics
7.7
370
|
Verified
Not enough data
6.9
333
|
Verified
Not enough data
6.5
323
Not enough data
6.3
312
Not enough data
Feature Not Available
Not enough data
Platform
8.2
365
|
Verified
Not enough data
8.5
361
|
Verified
Not enough data
8.5
358
|
Verified
Not enough data
7.8
330
|
Verified
Not enough data
7.7
348
|
Verified
Not enough data
8.8
359
|
Verified
Not enough data
7.2
313
|
Verified
Not enough data
Agentic AI - Marketing Automation
6.3
66
Not enough data
6.4
67
Not enough data
6.7
62
Not enough data
6.3
64
Not enough data
6.2
63
Not enough data
6.3
65
Not enough data
Integration
8.3
373
|
Verified
Not enough data
8.3
366
|
Verified
Not enough data
7.6
336
|
Verified
Not enough data
Administration
8.1
265
8.2
79
7.4
236
7.0
67
8.1
251
7.5
53
8.9
264
8.2
54
7.7
238
8.4
74
7.8
244
9.2
76
Integrations
8.6
237
8.8
64
8.5
241
8.3
59
8.4
205
9.0
68
7.2
178
7.5
43
Platform
8.2
210
8.4
44
8.2
205
8.1
43
7.9
200
7.6
41
8.2
240
|
Verified
8.8
74
7.8
218
7.8
41
8.2
241
8.4
60
7.9
216
8.6
54
8.8
238
9.4
72
Campaigns
8.6
115
8.7
58
8.7
112
9.1
53
8.2
107
7.7
35
8.8
120
7.4
37
8.8
114
9.0
59
Analytics
8.4
114
7.1
33
7.6
105
6.9
37
Optimization
8.5
112
6.9
32
8.9
114
8.7
53
8.0
110
8.8
46
8.4
112
8.7
52
Agentic AI - Push Notification
6.4
14
7.2
6
6.9
14
6.9
6
6.5
14
7.5
6
Text Messaging
8.4
84
Not enough data
Feature Not Available
Not enough data
8.2
80
Not enough data
Feature Not Available
Not enough data
6.8
75
Not enough data
6.5
77
Not enough data
8.7
87
Not enough data
8.2
79
Not enough data
SMS Platform
7.5
82
Not enough data
8.3
85
Not enough data
7.2
73
Not enough data
6.2
71
Not enough data
6.7
71
Not enough data
8.3
83
Not enough data
Agentic AI - SMS Marketing
6.4
17
Not enough data
6.4
17
Not enough data
7.5
17
Not enough data
7.2
17
Not enough data
7.0
17
Not enough data
6.7
18
Not enough data
Data Sourcing
7.5
93
Not enough data
7.7
95
Not enough data
7.3
97
Not enough data
8.2
95
Not enough data
Intelligence
7.3
91
Not enough data
5.8
88
Not enough data
5.9
87
Not enough data
Communication Platform as a Service (CPaaS)Hide 6 FeaturesShow 6 Features
Not enough data
Not enough data
Functionality
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Support
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Messaging Channels
Not enough data
8.5
28
Not enough data
9.3
45
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Administration
Not enough data
8.8
36
Not enough data
9.5
43
Not enough data
7.8
21
Not enough data
9.3
36
Consolidation - Notification Infrastructure
Not enough data
8.7
76
Not enough data
9.2
77
Not enough data
8.5
76
Customization - Notification Infrastructure
Not enough data
8.8
78
Not enough data
7.8
75
Not enough data
7.7
75
Agentic AI - Personalization
5.4
32
Not enough data
6.3
33
Not enough data
5.7
32
Not enough data
5.7
32
Not enough data
5.4
32
Not enough data
5.5
33
Not enough data
Analysis
Feature Not Available
Not enough data
8.0
69
Not enough data
6.2
56
Not enough data
Feature Not Available
Not enough data
Campaigns
7.3
57
Not enough data
8.0
62
Not enough data
7.3
61
Not enough data
Feature Not Available
Not enough data
9.3
69
Not enough data
9.2
70
Not enough data
Engagement
6.9
54
Not enough data
Platform
8.0
62
Not enough data
Feature Not Available
Not enough data
7.6
60
Not enough data
Agentic AI - Mobile Marketing
6.7
6
Not enough data
7.2
6
Not enough data
6.1
6
Not enough data
6.7
6
Not enough data
6.4
6
Not enough data
6.9
6
Not enough data
Categories
Categories
Shared Categories
Customer.io and Knock are categorized as Push Notification and Transactional Email
Unique Categories
Customer.io is categorized as SMS Marketing, Personalization, Mobile Marketing, Marketing Automation, and Customer Data Platform (CDP)
Knock is categorized as Notification Infrastructure, Proactive Notification, and Communication Platform as a Service (CPaaS)
Reviews
Reviewers' Company Size
Customer.io
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Knock
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Computer Software
14.6%
Financial Services
13.3%
Information Technology and Services
9.5%
Marketing and Advertising
8.0%
Health, Wellness and Fitness
5.0%
Other
49.7%
Computer Software
33.6%
Information Technology and Services
9.0%
Financial Services
7.5%
Marketing and Advertising
3.7%
Accounting
3.7%
Other
42.5%
Discussions
What is Customer.io used for?
2 Comments
HV
Customer.io is a tool that helps businesses send personalized messages like emails, texts, and app notifications. It’s used to stay connected with customers,...Read more
What is the best way to make automations a smoother process?
1 Comment
RJ
Start small workflows. Make use of the content that your marketing and sales teams have. Use Goals. Know when to unenroll the contacts from the automation...Read more
Knock has no discussions with answers
Hunting for software insights?
With over 3 million reviews, we can provide the specific details that help you make an informed software buying decision for your business. Finding the right product is important, let us help.
