Difference between Dev-401 & Developer-1 Certification.

Dev(401)- for App Builder.

And with Developer-1 I think with this you want to specify PD-1 certification.

Thanks

Yes, there is a difference between the DEV-401 certification and the Salesforce Platform Developer-1 certification. The DEV-401, also known as the Salesforce Certified Force.com Developer certification, was retired and replaced by the Platform Developer-1. While the DEV-401 focused more on declarative development (point-and-click), the Platform Developer-1 certification places greater emphasis on programmatic development (coding) and covers a broader range of topics, including Apex and Visualforce.
The shift to the Platform Developer-1 certification reflects the evolving approach of Salesforce development, where a deeper understanding of coding and the platform’s technical capabilities has become crucial.
For those who have the DEV-401 certification, Salesforce did not require a mandatory update to the new Platform Developer-1 certification. However, it is highly recommended to pursue Platform Developer-1 to stay updated with the latest practices and to be recognized as a developer with up-to-date skills.
For more insights on the Salesforce developer certifications, you can refer to our extensive SF Certification Research: SF Staffing Agency Salesforce Certification Research.
This research can also help you understand the current market demands for Salesforce developers and how the new certification aligns with industry standards.