Founders

There are 3 business models for apps.

1. Free with ads
2. Subscription
3. Transaction fee

The common thread for all three models is the user—a person, business or AI—has money to spend. 

That’s obvious for 2 and 3 since the model involves spending money directly with the app.

But for 1, if your user base doesn’t have money to spend, the ability to monetize via ads will be low.

Working on Farcaster and Warpcast. Longer thoughts at https://dwr.email

While you're correct that 3 is significant for wallet apps, ads can still be a significant line-item alongside swap fees. 

But those transaction fees are likely de minimis on an app like Warpcast since financial transactions aren't really its reason for being.