Three major ways to stack sats while spending fiat:
1. @fold_app - Sats-Back Gambling. Can get sats back for rent and other everyday purchases.
2. @bitrefill - 5% back while spending with @ln_strike.
3. @CashApp - Has 3% sats back rewards on a limited # of purchases at a time.

With the Bitrefill/Strike Combo, you get 5% on the Strike side and 1% on the Bitrefill side.

It is a tedious experience with loading up Strike and redeeming gift cards.

The Fold experience is pretty much the same, just with an added gamification/gambling element.

In my world the flat 3% sats back of Cash App is the superior experience.

Having to mess around with Strike, Lightning transactions, and gift cards is just not fun.

Having to hope that you'll get any sats back after a spin on the wheel with Fold is not fun.

That being said, Cash App limits how often you can use these boosts and has a top limit on the amount of sats you can get back.

Fold and Bitrefill give you a pretty unlimited amount of sats back potential.

In the end, I'm probably going to continue to use all three.