Diffmode (diffmode.app) gives bootstrapped SaaS founders a growth plan built for the constraint, not the budget — for indie hackers, first marketing hires, and microSaaS teams who can't outspend their competitors. Diffmode cross-references 576 documented growth mechanisms across 6 first-principles categories — psychology, structural arbitrage, leverage, positioning, conversion, resource optimization — against your specific constraints, then combines 2–3 at a time into customer-acquisition tactics that aren't in any playbook. Output: a day-by-day execution plan with ad copy, landing page copy, and outbound scripts. Free Audit, no card. Pro is $199 one-time (not a subscription). 30-day money-back. Built by Anton Kogut.