From VoltKeep specs and pricing to common Tesla owner questions about efficiency, battery health, and phantom drain.
Each answer has its own detailed page.
Every model supported by Tesla Fleet Telemetry (Model 3 / Y / S / X / Cybertruck). Requires an iPhone running iOS 17.0 or later.
Encrypted with X25519 public-key cryptography before storage. The decryption key only exists on your device — even our operators cannot read the contents.
Route maps, efficiency tracking, and phantom drain detection are all free. Only the AI analysis features are Pro-only.
A large language model analyzes your driving data and produces concrete efficiency recommendations based on driving efficiency, regen utilization, and speed patterns.
Cancel anytime from App Store subscription management. Pro features remain active until the end of your billing period.
Maximize regen braking, cruise at 50–62 mph (80–100 km/h), maintain tire pressure, precondition before departure, and use Sentry Mode strategically.
VoltKeep Pro's Battery Health feature visualizes estimated SoH (State of Health) and degradation trends — and forecasts future degradation.
The gradual battery loss while parked. Caused by Sentry Mode, Cabin Overheat Protection, and similar background features. Not the same as "phantom braking."
Direct Tesla Fleet API connection means no server setup. Native iOS UI, X25519 encryption, and built-in AI analysis — everything runs from your iPhone.