Forms of application monetization [closed]

There are 3 basic forms of monetization:

• Free (with ads)
• Freemium (with purchases made within the App itself)
• Payments (with a specific value to perform the installation)

  

[...] easier to apply to my app.

The 3 are relatively easy. Maybe you do not have to think which is easier or not, but which would be more feasible for your case. Each application has its characteristic in relation to monetization depending on the type of service you will offer. Try to identify your target audience first before monetizing. Implementation is the easy part of the whole story.