The optimal period for frequency capping push ads typically ranges from 24 to 72 hours, depending on the campaign's goal and audience behavior. A 24-hour cap prevents ad fatigue, ensuring users aren't overwhelmed by repetitive notifications, while still maintaining brand visibility. For engagement-focused campaigns, extending the cap to 48–72 hours can reduce annoyance and increase click-through rates. Striking a balance between visibility and user experience is crucial. Excessive frequency leads to user opt-outs or banner blindness, while too little may reduce ad effectiveness. Testing and analyzing performance metrics like CTR and conversions help determine the ideal cap for specific audiences. Ultimately, the goal is to engage users meaningfully without causing irritation or desensitization.