Engineering Precision.
Zero Latency.
Simulate payment processing fees, next-gen AI token costs, serverless compute, and SaaS financial unit economics in real time.
1. Our Mission
In modern digital commerce and cloud computing, pricing structures are notoriously convoluted. Between percentage card processing fees, fixed gateway surcharges, and volatile per-million token rates for frontier AI models, estimating exact take-home margins or monthly cloud bills is challenging.
DevFormula was created to eliminate guesswork. We provide instant, mathematically verified calculation engines that run directly in your browser without tracking, sign-up forms, or paywalls.
2. Core Engineering Principles
Sub-Millisecond Engine
Runs client-side with zero network roundtrips as you drag sliders.
Verified Mathematics
Pure functions backed by automated test suites to guarantee 0 NaN bugs.
100% In-Memory
Your revenue and API estimates never leave your browser device.
3. Feedback & Requests
Have a suggestion for a new payment gateway, e-commerce fee breakdown, or frontier AI model? Contact page and we will gladly review your request.