Direct Answer: Top Cost Drivers
Mobile software budget overruns rarely stem from high developer hourly rates. They are almost always caused by poor initial architectural planning, unvalidated design changes during coding, and feature bloat.
The 7 Costly Mistakes Explained
1. Building Separate Native Codebases: Maintaining two codebases doubles engineering costs. Single-codebase Flutter solves this.
2. Coding Without Clickable Figma Prototypes: Changing designs in code costs 5x to 10x more than modifying Figma wires.
3. Uncontrolled Scope Creep: Adding 'just one more feature' mid-sprint delays releases and inflates budgets.
4. Over-Engineered Microservices: Using complex Kubernetes clusters for a seed-stage MVP wastes infrastructure and engineering capital.
5. Ignoring Low-End Devices: Testing only on high-end iPhones misses Android crashes on mid-range phones.
6. Neglecting Store Guidelines: Ignoring Apple/Google privacy declarations causes unexpected store rejections.
7. Lack of Direct Technical Accountability: Working through non-technical account managers creates expensive translation errors.
Cost Prevention Checklist
Use this operational checklist to guard your project budget:
- Lock Phase 1 feature scope before starting sprint engineering.
- Require clickable Figma prototype sign-offs.
- Use Flutter for single-codebase cross-platform delivery.
- Conduct bi-weekly TestFlight demos on actual target devices.
