Google AdsCampaigns table, add the segment Day (optionally Device), then Download as CSV or Excel. For country, use a Locations or Report Editor export with Day + Country.
Meta Ads ManagerCampaigns, ad sets or ads tab. Under Breakdown pick Time → Day and, if you want, Delivery → Country or Impression device. Then Export table data as CSV.
TikTok Ads ManagerCampaign or ad group list, or a custom report with Day as a dimension and Cost, Impressions, Clicks, Conversions as metrics. Export as CSV or Excel.
MMP / CRM (optional)An aggregated report with Campaign, Date and Installs or Conversions (AppsFlyer, Adjust, Branch, HubSpot…). It's matched to your spend by campaign name, so names must be identical.
Tip: name campaigns with country and OS (e.g. “App – iOS – US”) and the tool will spot patterns even when your export has no Country or OS column.