DeliveryLab: Invoice-versus-tank-rise checks, price history, burn context, and supplier packets. - Identify tank geometry, calibration source, gauge type, and reading conditions - Record before and after readings without overwriting either observation - Compare geometry-estimated rise with invoice quantity and delivery notes - Review price, degree-day, burn-rate, and timing context separately - Export a neutral supplier packet with uncertainty and questions

Dipgauge 2.1 adds a Supplier Call Sheet for cleaner fuel-company ordering. - New call sheet in Plan with gallons now, suggested order size, estimated cost, order-by date, and lead-time risk - New plain-language call script to use when scheduling a delivery - New checklist for minimum delivery, lead time, price, fees, and safety margin - Added tests for call sheet gallon rounding, urgency, and script generation - Refreshed App Store metadata, screenshots, and support pages for the current feature set

Dipgauge 2.0 — a pro upgrade for your fuel tank, still 100% offline. • Low-fuel & reorder reminders: on-device alerts at ½, ⅓, ¼, ⅛, and your reorder point. • Days-remaining ladder: the exact dates you'll cross each level. • Pro K-factor panel: your degree-days-per-gallon, with a dealer-K comparison. • Budget & savings: season and full-year cost forecasts, a level monthly budget, and a prebuy lock-vs-market check. • Price book & quote checker: rate any new quote against your delivery history. • Order-size planner: compare top-off, half, and full fills by cost and days of fuel. No account, no network, no tracking — every reading stays on your device.

Forecast: a weather-normalized reorder projection. Dipgauge learns how many gallons your tank burns per heating degree-day from your own readings, then projects your reorder and empty dates for the season ahead. Plus reliability fixes.

What's New in Dipgauge 1.1 Delivery Log Record every fuel delivery - gallons received, price paid per gallon, supplier - directly in the app. The Log tab now shows your complete delivery history with a per-delivery cost breakdown. Seasonal Cost Summary Deliveries are grouped into heating seasons (Sep-Aug). See total gallons delivered, total money spent, and average price per gallon for each season - so you finally know what a whole winter of heat actually cost you. Monthly Consumption Chart A new bar chart in the Log tab shows gallons consumed month by month, calculated from your reading history. Instantly see your peak month and how winter compares to shoulder season.