Purchase intent decays fast. Someone who viewed your product 48 hours ago is 8-12x more likely to convert than someone from day 21. Bid accordingly.
0-2 days, 3-7 days, 8-14 days, 15-30 days. Four separate audiences.
3x baseline bid on 0-2 day, 2x on 3-7, 1x on 8-14, 0.5x on 15-30.
Fresh viewers → best product. Old viewers → 'we noticed you left,' with an incentive.
Max 8 impressions per week per audience. Otherwise you're just annoying people who already said no.
An apparel brand rebuilt its retargeting on the decay curve. Same total spend, 62% more revenue in 90 days.
PackAdz QR scans build an audience of hyper-local people who saw your ad in person — the strongest possible retargeting seed.
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