The most cost-cutting bidding strategy for push ads is manual CPC (Cost-Per-Click) bidding with strict budget controls. This strategy allows advertisers to set maximum bids for each click, maintaining tight control over spending. Unlike automated strategies, which can overspend to meet impression or conversion goals, manual CPC ensures you only pay what you're willing to spend. Pairing this with granular audience targeting and frequency capping minimizes wasted impressions and improves cost efficiency. Additionally, focusing on high-intent segments—such as cart abandoners or returning visitors—can yield better ROI with fewer clicks. While manual CPC requires more oversight and testing, it offers greater transparency and control, making it the most effective approach for cutting costs without sacrificing performance in push ad campaigns.