Whistl
Tap a star to rate
Whistl intercepts your purchases at the moment of transaction and asks if you really want to spend that money right now. Instead of letting impulse buys go through and regretting them later, the AI gives you a chance to pause and reconsider before your card is charged.
This works best if you struggle with impulse shopping and want a friction layer you'll actually respect. It's not about judgment; it's about creating a 10-second gap between the urge and the purchase, which is often enough to break the impulse.