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Optiwatt

Free smart charging and cost tracking for EV owners

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About

Optiwatt is a free app that tracks your EV charging costs from your actual utility plan, schedules charging during the cheapest energy rates, and shows gas savings and battery statistics per charge. It works especially well with Tesla vehicles and runs utility reward programs like EV Flex Connect with San Diego Community Power, where drivers can earn around $110 in rewards. It is 100% free, but user reviews flag connectivity hiccups with some car brands, occasional inaccurate rate data, and limited manual control over schedules.

What it can do

  • Automatic cheapest-rate charging schedules
  • Utility-plan-based cost tracking
  • Gas savings and battery efficiency stats
  • Preconditioning before departure
  • Utility reward program enrollment (select regions)

Setup

  1. Install the Optiwatt app from the App Store or Google Play
  2. Create a free account
  3. Connect your EV (Tesla support is strongest) or charger
  4. Enter your utility plan
  5. Set your departure time and battery target

Prerequisites

Electric vehicle (best with Tesla); smartphone; utility plan details.

Use cases

EV charging schedulingcharging cost trackingutility rate optimizationTesla charging management

Works with

Any agent (.md)

Trust score — 6/10

/10 trustMetrics-checked

Scored 6/10 (metrics tier, metrics-v1). Evidence: App-store listings verify 100% free model and Tesla-first feature set; User reviews flag connectivity issues with some car brands and rate-data errors; $388/yr average savings is a company/app-store claim, not independently verified. License: Free app; utility reward programs regional (e.g. EV Flex Connect)..

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
6.0/10
Maintenance · recency, releases, issue load
6.0/10
Openness · license + docs
5.0/10
Manual review · sanity read + red-flag check
6.0/10
  • · App-store listings verify 100% free model and Tesla-first feature set
  • · User reviews flag connectivity issues with some car brands and rate-data errors
  • · $388/yr average savings is a company/app-store claim, not independently verified

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.