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Android Apps > Auto & Vehicles > WattLog
WattLog icon

WattLog

by The UX Guy · Auto & Vehicles · Free
On Google Play since May 2026 · Data updated 2026-10-26

WattLog is made and published by The UX Guy. AppBrain is an independent app data site and isn't affiliated with The UX Guy. The app name, icon, screenshots and description belong to The UX Guy and are shown as published on Google Play.

AppBrain's verdict

Niche
Total installs
140
Rating on Google Play
4.56
10 ratings
Last updated
August 3, 2026

WattLog is a niche app, with 140 installs. It doesn't have enough ratings yet to judge what users think.

Official page on Google Play

Installs

Tracked by AppBrain
Last 30 days
10
Play install range
100+
Launched
May 2026

Installs over time

WattLog has been installed 140 times. Over the past 30 days, it has been installed 10 times.

Rankings

Google Play top charts

Google Play Rankings for WattLog

This app is not ranked

Competitors

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Releases

Updates seen on Google Play
Version
1.3.1
Launched
May 2026
  • Aug 3, 2026UpdateVersion 1.3.1
  • Jul 9, 2026UpdateVersion 1.3.0
  • Jul 3, 2026UpdateVersion 1.2.6
  • Jun 23, 2026UpdateVersion 1.2.2
  • May 28, 2026Installs100+ installs
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

7
1
0
1
0

Comments on WattLog for Android

★★★★☆ CoCo · Jul 23, 2026
Pretty good app, I just wish there was an option for "not charging" to be able to log your drives between charges, and to be able to toggle between home charging, pay per charge, and not charging. I think that would make it more accurate as far as estimating costs and efficiency. Otherwise it's pretty good! Thanks for your hard work in creating this!
★★★★☆ Nick p · Jun 15, 2026
Easy to use. Just use it before you charge. OCR of the "Since Last Charge" screen works well. Enter the date and charging cost. You can also force it to take a picture and edit data it may not have recognized properly. This gives you a good idea of your drive efficiency over the last 10 days. Can compare to gas prices too which is fun. I wish there was an option to show graphs for longer like a month just to look for patterns but the data can be exported as a csv and viewed that way too.
★★★★★ Squaredly · May 8, 2026
Really impressed with Watt log. The UI is clean and intuitive, and it makes tracking charging sessions very straightforward.

Technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
?
App size
18.6 MB
Content rating
Everyone

Technologies used by WattLog

15 permissions
Subscribe to see full permission and library details

About the app and developer

About WattLog

WattLog is an auto & vehicles app developed by The UX Guy.

Install Statistics

WattLog has been installed 140 times. In the last 30 days, the app was installed 10 times.

User Ratings

WattLog is rated 4.56 out of 5 stars. The rating is based on 10 ratings.

App Information

WattLog is freely available from Google Play. The app size is 18.59 MB. The latest version available is 1.3.1. The last update was on August 3, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since May 2026.

App Performance Report

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Developer information for The UX Guy

The UX Guy

the.wattlog.app@gmail.com

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Store listing

By The UX Guy, from Google Play

“Log EV charge sessions with your camera. Track efficiency over time.”

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Screenshots by The UX Guy, from the Google Play listing
Description by The UX Guy Written by the developer, not by AppBrain. Click to read.
WattLog turns your EV's data screen into a structured log — just point your camera at the display and let the app capture the numbers.

Each session records starting battery, distance driven, average efficiency, remaining range, drive time, average speed, ambient temperature, and charging location. Add cost per kWh for spend tracking over time and compare to gasoline powered vehicles in your region.

Features
• OCR-powered data entry — point your camera at the charge screen, review, and save
• Charge history with per-vehicle filtering and swipe-to-delete
• Efficiency and range trends over time
• Drive summary analyzes your costs versus gasoline in your region
• Supports multiple vehicles with a default selector
• Home and away charging distinction
• Imperial and metric unit support
• Settings sync across devices via your Google account
• Dark, light, and system theme

Designed for
EV owners who want a clean record of their driving and charging habits without manual entry or spreadsheets. Initial release was trained on the Nissan Ariya but the app will learn your vehicle UI and improve with each user submission.

Sign in with Google, email, or skip the sign in to get started immediately. Your data is downloadable.

Coming soon, share logging of the same vehicles with others in your household!

Recent changes:
- Update Android API version
- Update Google Play Billing API version
Official page on Google Play
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Overview Alternatives History Reviews Rankings Technology
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