# Customer.io vs Shlink — Fit & Features

Canonical: https://trutool.co/compare/customer-io-vs-shlink
Author: Yash (https://trutool.co/authors/yash)

Compare Customer.io and Shlink by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### Customer.io
Messaging and customer engagement automation.
Best fit: Marketing teams and growing businesses considering Customer.io for this job: Messaging and customer engagement automation.
- Messaging and customer engagement automation
Before you choose: Test channel coverage, contact consent, campaign workflows, attribution, and total plan costs in the exact plan you intend to use.
Pricing: https://customer.io
- [Read Customer.io profile](https://trutool.co/tools/customer-io): Read Customer.io profile

### Shlink
The self-hosted and PHP-based URL shortener application with CLI and REST interfaces.
Best fit: People and teams evaluating marketing platforms for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://shlink.io
- [Read Shlink profile](https://trutool.co/tools/shlink): Read Shlink profile