About RunwaySnap

1. Our Mission

RunwaySnap was built to solve a familiar startup headache: founders should not have to dig through complex spreadsheet templates, pay for expensive FP&A subscriptions, or surrender their financial data just to answer one fundamental question: “How many months of runway do we have left before the money runs out?”

We created RunwaySnap as an ultra-fast, zero-friction, client-side financial analytics utility. Whether you are bootstrapping a micro-SaaS, preparing a board deck for a Series A raise, or managing seed-stage burn, our mission is to deliver instantaneous, mathematically rigorous visibility into your financial horizon.

2. Calculation Methodology & Mathematical Framework

Our financial engine models cash consumption using institutional-grade startup accounting principles. Below is an exhaustive breakdown of how RunwaySnap processes your figures:

A. Net Monthly Burn Rate

Burn rate represents the net cash consumed by a business each calendar month. We calculate Net Monthly Burn as:

B. Flat-Burn Runway Projection

When the MRR Growth Rate is set to 0%, the calculator assumes current net burn remains constant month over month until the existing cash reserve is exhausted:

C. Growth-Adjusted Month-by-Month Compounding

Real software companies do not operate in a static vacuum; recurring revenue often grows. When an optional monthly MRR growth rate (g) is provided, RunwaySnap executes an iterative month-by-month simulation:

• Month 1: Net Burn₁ = OpEx − MRR₀. Cash drops by Net Burn₁. MRR increases to MRR₁ = MRR₀ × (1 + g).
• Month n: Each subsequent month, growing revenue reduces the net burn deficit. The simulation continues iteratively until either:
  1. Cash reserves reach $0 (determining the precise fractional cash-out month), or
  2. Monthly revenue equals or exceeds operating expenses, signifying that the startup reaches profitability before running out of money.

D. Paul Graham's “Default Alive vs. Default Dead”

In 2015, Y Combinator co-founder Paul Graham introduced a pivotal framework for startup survival:

• Default Alive: If a startup continues along its current revenue growth and spending trajectory, it will reach sustainable cash-flow profitability before its cash reserves run dry.
• Default Dead: On its current trajectory, cash will run out before profitability is reached. The company will inevitably perish unless leadership changes the equation by raising outside capital, dramatically accelerating sales, or slashing operating expenses.

RunwaySnap evaluates this dynamic in real time, displaying the corresponding status pill beside your runway score.

E. Runway Benchmark Tiers

Our health indicators align with standard venture capital risk profiles:

• < 6 Months (Critical): Immediate intervention required. Modern venture fundraising rounds typically require 3 to 6 months from first partner meeting to funds wired.
• 6 – 12 Months (Concerning): High-alert zone. Fundraising pipelines must be actively engaged, or burn reductions implemented.
• 12 – 18 Months (Healthy): The golden standard for operating startups between seed and growth stages. Sufficient buffer to hit product milestones.
• 18+ Months (Strong): Substantial defensive cushion offering maximum strategic flexibility and negotiating leverage.

3. 100% Client-Side Architecture: Why Privacy Matters

Startup financials are strictly confidential. Many online calculators secretly transmit your entered figures to remote telemetry servers or use them to profile your organization for marketing.

RunwaySnap was architected with a strict client-side-only execution model. All equations and chart renderings are executed exclusively within your device's browser memory via modern JavaScript and SVG. Your revenue numbers, cash balances, and burn rates never cross the network.

4. Contact & Founder Feedback Mechanism

We are committed to continuously improving RunwaySnap and building additional free tools for the startup ecosystem. We actively welcome feedback, feature suggestions, edge-case inquiries, and methodology critiques from founders, CFOs, and investors.

If you encounter an unusual financial scenario, have an idea for an additional metric (e.g., CAC payback periods, gross margin adjustments), or want to report a bug: