Small-budget advertisers lose money two ways: killing winners too early, funding losers for weeks. The Ad Kill-or-Scale Decision System fixes that with pre-written rules. Plug in your target CPA once — every ad set gets a verdict: KILL, KEEP TESTING, or SCALE, using the 2x/3x spend rules media buyers use. Includes a break-even ROAS calculator and testing-budget allocator. For Meta, TikTok and Google advertisers spending $10–100/day. Excel-based, no subscriptions, commercial license included.