NotaVolt - EV Ownership Log

NotaVolt is the ownership log built for EV and hybrid owners who want their data on their device and nowhere else. Pay once. No ads, no subscription, no account. Every service record, battery session, and reminder stays local. No third party ever sees it.

Built for EVs, not a car logbook with EV bolted on. Most maintenance apps are free-with-ads, subscription, or ICE-first with a kWh field added later. NotaVolt is the opposite: EV-native from the ground up (Wh/km, SOC, fast-charge logging, Efficiency Score, hybrid L/100km and mpg modes), paid once, and entirely on your device. There is no OBD dongle, no manufacturer login, no cloud sync. You log what matters; you own all of it.

Your vehicle's full ownership record, privately. Log service history with photos, track energy efficiency over time, and set mileage- or time-based reminders. When it is time to sell, generate a resale-grade ownership report: the document you hand to a buyer, a workshop, or an insurer.
What you get:
• Service log with photos, cost tracking, and type categories (brakes, tires, coolant, HV inspection, 12V battery, and more)
• VIN validation: checks the 17-character VIN as you type, with a one-tap shortcut to look it up on carVertical, CARFAX, or the free NHTSA decoder (your VIN is copied for you; the app sends nothing)
• Battery efficiency tracking with Wh/km or L/100km charts and a 90-day trend line
• Efficiency Score: a single relative indicator of how your EV is performing vs. its own baseline
• Battery degradation analysis: first vs. last quarter efficiency comparison, estimated capacity loss, and a health score with recommendations
• Total Cost of Ownership: cost per km, total spend, breakdown by service category, with 6-month, 12-month, and all-time views
• Maintenance cost prediction: projected spend for next month, next 3 months, and next year based on your actual service history
• Mileage-based reminders (e.g. tire rotation every 10,000 km) and time-based reminders
• Insights: year-over-year efficiency comparison, service compliance rate, cost per km trend
• Service interval tracking: upcoming and overdue service by type, with urgency indicators
• Reports: export service and battery data as PDF, CSV, or JSON; filter by date range
• Prepare for Sale: guided readiness checklist, choose what to include, generate a sale-ready PDF in one tap
• Vehicle archiving: mark a sold or retired vehicle as archived; its full history is retained and can be restored at any time
• Backup and restore: export your full data as a versioned JSON file; restore on a new device without any account
• Metric and Imperial support

Why NotaVolt instead of a free logbook?
• Free apps pay their bills with ads or your data. NotaVolt charges once and does neither.
• Generalist logbooks treat your EV like an ICE car. NotaVolt is EV-first by design.
• Connected-car apps that need a dongle, an account, or a monthly fee are a different product entirely. NotaVolt is your private record, not a telematics service.
• No subscription. No upsell. No premium tier. Everything you see is included.

Who it is for: EV owners who think in kWh/100km. Buyers who want documented proof before signing. Sellers who want to back their asking price with a full service record. Anyone who does not want their vehicle history sitting in someone else's database

We appreciate any helpful feedback,comment or suggestion so feel free to contacts us at: sdremthix@gmail.com