EV & Auto Technician Pro Bundle Review: 6 Offline Apps for EV Owners and Mechanics
If you drive an electric car, work in an auto shop, or are converting a van into a camper, the knowledge you rely on is usually scattered across forums, manuals and spreadsheets. This review looks at the EV & Auto Technician Pro Bundle, a set of six offline reference and training apps from ChatStick that brings charging, battery health, high-voltage safety, diagnostics and fluid specs into one purchase on the App Store.
Below we cover what each app actually does, who the bundle suits, what it costs compared with buying the apps one by one, and a simple way to get value from it in the first week. Every detail comes from the official App Store listings.
What is the EV & Auto Technician Pro Bundle?
It is an App Store bundle published by ChatStick Company Limited for three groups of people: EV owners, current and aspiring automotive technicians, and hands-on builders working on DIY camper vans. All six apps are positioned as practical reference and training tools, and the listing states you can learn anywhere, even offline. That makes them handy in a garage with poor signal, at a charging stop, or on a remote campsite.
The bundle lists English as its language, and the apps use the same technical terminology you will find in service manuals and training courses.
The six apps in the bundle
App | Focus | Price on its own |
The EV Survival Guide | Charging, range and ownership costs | ฿199 |
EV Battery Health | State of health tracking and degradation risk | ฿199 |
EV Battery Diagnostics | Service toolkit for EV battery faults | ฿199 |
HV Safety for EV Technicians | High-voltage PPE, LOTO and service tools | ฿199 |
Engine Oil & Fluids Bible | Engine oil, coolant and fluid specifications | ฿199 |
Van Build Mastery | Camper van planning: solar, battery and water | ฿199 |
Individual prices are those shown on the Thai App Store at the time of writing. Bought separately, the six apps add up to ฿1,194, while the bundle is listed at ฿599.
Highlights for EV owners
Two of the apps are built for everyday electric car ownership: understanding what charging really costs, planning trips and keeping the battery healthy for longer.
The EV Survival Guide: a 12-chapter offline guide to charging, range, battery health and ownership costs, plus nine calculators including charging cost, charging time, real range, road trip, charger payback and total cost of ownership.
Charging and maintenance logs: record kWh, cost and charge type with monthly totals, and track EV-specific service items with due status. A garage profile auto-fills common calculator values.
EV Battery Health: a State of Health tracker that works from range or capacity and logs readings over time so you can see the trend.
Charging Ceiling Advisor: suggests a charge limit for NMC or LFP packs based on your daily driving distance.
Used-EV Inspection Scorer: a structured 30-minute inspection for anyone shopping for a second-hand electric car.
Highlights for technicians and students
Three apps target workshop work directly, from fault finding on battery packs to staying safe around high-voltage systems and choosing the right fluids for conventional engines.
EV Battery Diagnostics: guided decision trees for reduced range, slow charging, insulation faults and cell imbalance, a searchable DTC library, calculators for SOH, cell balance and insulation resistance, service records, SOH trend charts and PDF service report export.
HV Safety for EV Technicians: a Glove Class Selector based on ASTM D120, a glove retest tracker with six-month due dates, a step-by-step Live-Dead-Live verifier and a capacitor discharge timer for the post-LOTO wait.
Five-phase safe-service checklist: PPE, Lockout/Tagout, Isolation Verify, Work De-Energized and Emergency-Ready, backed by 72 quiz questions across 12 chapters.
Engine Oil & Fluids Bible: an oil spec decoder for bottle codes and approvals, a viscosity selector, an oil-change interval calculator, a coolant compatibility checker for IAT, OAT, HOAT and P-OAT, and a leak diagnoser based on color, location and smell.
For camper van builders
Van Build Mastery helps you plan a conversion from start to finish. It offers a phase-by-phase build checklist with progress saved on the device, solar and battery sizing from your daily appliance loads, fresh and grey water tank planning, insulation R-value estimates and budget tracking by category, along with a 12-chapter guide and chapter quizzes.
How to get value from the bundle in week one
EV owners: fill in the Garage profile in The EV Survival Guide so the calculators pre-fill your car's details.
Log a State of Health reading in EV Battery Health now, then repeat periodically to build a trend line.
Technicians and students: work through the five-phase checklist in HV Safety before any supervised high-voltage practice.
Use EV Battery Diagnostics to keep service records and export a PDF report for each vehicle.
Keep Engine Oil & Fluids Bible open whenever you need to match an oil or coolant to a specification.
Note: these apps are reference and training tools. Real high-voltage work should only be carried out by trained personnel following the vehicle manufacturer's procedures.
App information at a glance
Price: ฿599 for the six-app bundle (each app ฿199 individually)
Compatibility: iPhone, iPad and iPod touch, requires iOS 26.2 or later
Language: English
Size: roughly 17–21 MB per app, about 111 MB for the full set
Category: Lifestyle, rated 4+
Developer: ChatStick Company Limited
Frequently asked questions
Who is this bundle for?
EV owners who want to understand charging and battery health, automotive technicians and students who need high-voltage safety and battery diagnostic references, and DIY camper van builders.
Do the apps work offline?
Yes. The App Store description presents them as offline reference and training tools, so you can use them without a connection.
How much do I save compared with buying the apps separately?
Each app is ฿199 on its own, or ฿1,194 for all six. The bundle is ฿599, based on Thai App Store prices at the time of writing.
Which devices are supported?
The bundle listing states iPhone, iPad and iPod touch with iOS 26.2 or later.
Conclusion
The EV & Auto Technician Pro Bundle is a practical choice if you want electric vehicle and workshop knowledge in one offline toolkit: charging calculators, battery health tracking, diagnostic workflows, high-voltage safety references, fluid specs and camper van planning. If you expect to use more than three of the six apps, the bundle costs less than buying them individually.
Browse all ChatStick apps on the ChatStick App Store developer page.
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