Build Then What
Build Then What is a 65-page PDF playbook that teaches indie makers and developers how to turn a lifeless app into one that actually gets customers. It is built on a real case study of an app that had 584 visitors and zero signups, diagnosing five specific leaks that prevented conversion. The guide covers three phases: fixing the app itself to make value clear and remove self-sabotaging elements like misleading CTAs, getting the app seen by the right audience through a systematic content and promotion engine, and optimizing by focusing on the biggest funnel leak. Each phase ends with a 'Do This Now' walkthrough of concrete steps, and the book includes eight ready-to-use AI prompts plus the full case study of the Scout AI app. The author transparently shares that while the leaks have been fixed, the signup results are still being measured, making this an honest, in-progress account rather than a success-guaranteed promise.
- Category
- Books
- Pricing
- Paid
Problem solved
Many builders ship an app and then struggle to get customers—their marketing efforts yield traffic but no conversions. Build Then What diagnoses common, invisible mistakes like broken pricing promises, brand inconsistency, audience mismatch, and lack of early engagement, and provides a systematic, step-by-step method to fix them, helping solopreneurs and small teams turn visitors into paying users.
Use cases
- An indie developer launched an app but has zero signups despite decent traffic
- A founder posted hundreds of social media promotions that generated no conversions
- A maker wants to preemptively audit their app and launch strategy before going live
- Someone looking for a practical, case-study-based guide to post-launch marketing
- A builder who prefers concrete action steps over motivational platitudes
- A team needing copy-paste AI prompts to accelerate their marketing content creation
Audience
- Developers
- Startups
- Hobbyists
Pros
- Based on a real, documented case study with actual traffic numbers
- Provides specific, actionable 'Do This Now' walkthroughs
- Includes ready-to-use AI prompts to speed up content creation
- Honest about results—does not promise overnight success
- Compact at 65 pages, focusing on practical fixes over theory
Cons
- The case study's payoffs are still being measured, so no proven success record
- Not suitable for those seeking a fully automated, hands-off growth system
- Requires a 20-minute daily commitment in your niche to be effective
- Paid at $27, which may be a barrier for very early-stage makers
- Solely focused on post-build marketing; no app development guidance
Official website: https://buildthenwhat.com/
Canonical LambdaBase page: https://www.lambdabase.com/tools/build-then-what