# WattWise — EV Charging Cost & Savings

> EV Charging Cost & Savings (iPhone/iPad app by Gary Haslett.)

- Source: https://appshunter.io/ios/app/wattwise/id6767531932 (this page in markdown: same URL + `.md`)
- Developer: [Gary Haslett](https://appshunter.io/developer/1896313210)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.4 · 2 MB
- Languages: American English
- Released: 2026-05-12
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/wattwise/id6767531932/reviews.md

## What is WattWise?

WattWise helps EV drivers estimate charging costs, compare charging rates, and understand every charging session before plugging in.

Choose your charging rate, adjust your EV details, and instantly see estimated session cost, charging time, energy required, miles added, and cost per mile.

WattWise is simple, private, and easy to use. Your charging sessions and tariff preferences stay on your device.

Features:
• Estimate EV charging session cost
• Compare Off-Peak, Peak, Public, and Custom rates
• Calculate charging duration
• Estimate miles added
• View cost per mile
• Save recent sessions locally
• Customise charging rate presets


## Version history (last 1 release)

### 1.0 — 2026-05-12

No release notes.

## More apps by Gary Haslett

- [Automation Insights](https://appshunter.io/ios/app/automation-insights/id6766668189)

All apps by Gary Haslett: https://appshunter.io/developer/1896313210

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*