IFTTT + Gmail (DIY Price Alerts)

Power users combine IFTTT applets with retailer email subscriptions to build custom alert systems that no single app can match, including #5 Idealo's automated notifications. A Nike membership alert triggers when sale items drop below a 40% discount threshold; a Farfetch alert fires when a specific designer collection goes on sale. The initial setup takes only 20 minutes, yet the average savings for regular shoppers exceed $500 annually—30% more than what Idealo's passive alerts deliver for the same effort.