BK400 vs Car Maintenance Tracker

BK400 is a professional Bluetooth car battery diagnostic tool. Connect to BK400 hardware via Bluetooth to monitor real-time voltage, plot live curves, and perform cranking tests, charging tests, and waveform analysis to fully evaluate battery health. Schedule automatic voltage sampling tasks and review historical data with interactive charts across customizable date ranges. Manage multiple devices simultaneously with fully isolated data. Built-in OTA firmware updates keep your device current. Use the vehicle finder to locate your car on a map. Generate professional diagnostic reports with one tap and share them with customers. Supports 15 languages for users worldwide. BK400 是一款专业的汽车蓄电池蓝牙智能检测工具。通过蓝牙连接 BK400 硬件设备，您可以实时监控电池电压、绘制电压曲线，并进行启动测试、充电测试和波形测试，全面评估电池健康状态。支持静态电压采集和定时任务，自动记录历史数据并生成可视化图表，支持按日期范围查看趋势。多设备同时管理，数据完全隔离互不干扰。内置 OTA 固件升级功能，确保设备始终运行最新版本。寻车功能通过地图标注设备位置，轻松找到您的车辆。一键生成包含启动测试与充电测试数据的专业检测报告，方便分享给客户。支持 15 种语言，满足全球用户需求。

A car maintenance log that remembers what you had done, and tells you before the next one is due. Most people keep their service history in a glovebox folder, a text file, or nowhere at all — and then find an oil change is nine months overdue, or hand a buyer a car with no paper trail and take less money for it. This fixes both ends: log a service in seconds, and hear about the next one before the interval runs out. DATE OR MILEAGE — WHICHEVER COMES FIRST A real service interval has two triggers. Oil is due every six months OR every 5,000 miles, and for most people one arrives well before the other. Set both and the app watches both, tells you which will land first, and reminds you about a week ahead. Drive a lot and mileage wins; drive a little and the calendar does. Your reminders follow how you actually drive, not an average. LOG A SERVICE IN SECONDS Pick what was done from around thirty common jobs — oil and filter, tire rotation, brake pads, coolant, spark plugs, timing belt, transmission fluid, air filter, inspection, registration — then add the date, the odometer, the cost and the shop. Attach a photo of the receipt if you have one. Same loop whether you did the work yourself or paid someone. EVERY VEHICLE IN ONE GARAGE A car, a second car, a truck, a motorcycle, a camper, the mower — each keeps its own odometer, its own intervals and its own history. Switch between them with one tap. Miles or kilometres, per vehicle, whichever you think in. HISTORY THAT SELLS YOUR CAR A complete, dated maintenance record is worth real money at resale, and "I looked after it" is worth nothing without one. Export your history as a clean PDF and hand it to a buyer, a mechanic, or an insurer. Everything on it is what you logged — dates, odometer, work done, cost. KNOW WHAT IT REALLY COSTS Running costs add up quietly. Once you have logged a few services, see the totals — by month, by job, and per mile — built from your own records and nothing else. No estimates, no averages, nothing invented on your behalf. PRIVATE, OFFLINE, NO ACCOUNT Your vehicles, your receipts and your costs stay on your phone. There is no account to make, no cloud, nothing uploaded, and no ads anywhere in the app. It works in a car park with no signal, which is where you usually need it. Back your records up to a file you keep yourself, and restore them on a new phone. WHAT YOU CAN TRACK • Oil and filter changes, with the reminder set the way your car is actually driven • Tire rotation, new tires, wheel alignment and balance • Brake pads, brake fluid, coolant, transmission fluid, differential and transfer case • Air and cabin filters, spark plugs, belts, battery, wipers and bulbs • Safety inspection, emissions test, registration and insurance renewal • Fuel fills, repairs, detailing, and anything else worth writing down ABOUT SERVICE INTERVALS The intervals offered here are typical figures, there as a starting point. Your own vehicle's schedule is in its owner's manual, and that is the one that counts — every interval is yours to change, and nothing here is presented as a manufacturer's specification. Makes and models are yours to type. This app carries no manufacturer database, reads nothing from your car, and needs no extra hardware — it is a maintenance record, kept by you. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kanac.github.io/syanac-legal/