Free Developer & Business Tools
Authentic, practical calculators and architectural estimators built by our engineering team to help founders, engineers, and agencies scope and scale software systems with precision.
Software Project Scope & Cost Estimator
Interactive engineering calculator. Select your application category, core feature sets, security compliance requirements, and cloud infrastructure to calculate realistic engineering hours, milestone phases, and estimated budget ranges.
- Multi-platform scope selection (Mobile, SaaS, APIs)
- Detailed milestone schedule generation
- Direct export to quotation proposal
SaaS MRR, LTV & Churn Health Calculator
Model key business economics in real time. Input current subscribers, average monthly revenue per user (ARPU), gross churn, and customer acquisition costs (CAC) to project Lifetime Value, CAC Payback, and 12-month revenue trajectory.
- Instant MRR & ARR annualization
- Customer Lifetime Value (LTV) and LTV:CAC ratio
- Cohort churn sensitivity analysis
Need Custom Architecture or Specialized Blueprints?
Our software engineers work directly with scaling startups and enterprises to architect high-concurrency databases, offline mobile apps, and automated billing pipelines.