What Mangrove Tools is
Mangrove Tools is a small library of practical, browser-first tools. The marketing analytics pages help estimate budget allocation, marginal return, and revenue forecasts. The newsletter calculators cover sponsor pricing, paid subscriber targets, media kits, inventory, and basic revenue planning.
Who it helps
The site is built for people who make marketing decisions without a large analytics team: owner-operators, early founders, lean marketing teams, and newsletter operators. The tools are meant to turn a few inputs into a useful planning range, a sanity check, or a cleaner conversation with a client, sponsor, or teammate.
Browser-first by design
Client-side means the calculation runs in your browser after the page loads. You type assumptions into a static page, see the result, and can leave without creating an account. Calculator inputs are not posted to a Mangrove Tools server. Google Analytics measures site traffic, not the private values you enter into a tool.
Marketing analytics
Marketing analytics is the primary product: simplified planning models for budget allocation, marginality, and forecasting.
- Budget Advisor - marginal ROI and optimized allocation
- Revenue Forecaster - trend, seasonality, and scenarios
- Analytics hub - all analytics tools
Newsletter calculators
Newsletter calculators are the supporting library. They are narrow on purpose, so a creator can answer one monetization question without opening a spreadsheet from scratch.
- LetterROI - newsletter revenue calculator
- SponsorQuote - sponsorship rate calculator
- SubTarget - paid subscriber goal calculator
- Media Kit Composer - print-ready media kit
- Inventory Planner - sponsorship capacity over time
See the analytics-first home page at Mangrove Tools, or common questions in the FAQ.
What the tools are not
The tools are not a business intelligence platform, an ad account connector, accounting software, legal or financial advice, or a promise that a forecast will happen. They use visible assumptions and simple models to support planning. For high-stakes decisions, use them as a starting point and check the numbers against your own records.
Why trust it
Mangrove Tools is built and maintained independently in Naples, Florida. The site is intentionally static, lightweight, and easy to inspect in use: no sign-up wall, no hidden dashboard, and no server-side workflow for calculator inputs.
Some newsletter pages may include affiliate links after the tool has already shown a result. Core calculator results remain free. For questions, corrections, or partnerships, use the contact page.
Contact
Questions, corrections, or partnerships: Contact Mangrove Tools (mangrovetools@gmail.com).