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Battery Grapher

Battery Grapher

Intelligent Battery Tracker

155 ratings
147 reviews
#160 in paid Utilities
๐Ÿ”ง Utilities
$1.99

Details

Released
February 14, 2020
Updated
September 22, 2026

Features

Developer

Joshua Bird
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Battery Grapher screenshot #1 for iPhone
Battery Grapher screenshot #2 for iPhone
Battery Grapher screenshot #3 for iPhone
Battery Grapher screenshot #4 for iPhone
Battery Grapher screenshot #5 for iPhone
Battery Grapher screenshot #6 for iPhone
iphone
ipad
watch
๐Ÿ“‰no. 160
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Reviews summaryโ†˜๏ธŽ
โญ147
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๐Ÿ”„6+ apps
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โ“5 answered
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About

This app tracks your device's battery usage over time and uses your historical data to predict future battery levels. It's designed for low energy consumption and offers customizable notifications to help you manage charging times.

โœ“Historical battery level graphing
โœ“Smart future battery predictions
โœ“Low energy consumption design
โœ“Customizable battery notifications
โœ“Supports all complications and widget sizes
Show original description

What users say about Battery Grapher

Reviews of Battery Grapher are mixed: the Utilities app is rated 4.3/5 from 155 App Store ratings. What users like most: innovative battery prediction feature, accurate Apple Watch complication display. Top complaints: complication fails to update frequently, widget missing or not appearing on installation. Summarized from real user reviews.

Positive things

  • ๐Ÿ’กInnovative battery prediction feature
  • โŒšAccurate Apple Watch complication display
  • ๐Ÿ“ŠDetailed battery usage analytics and graphs
  • ๐ŸŽฏLearns usage patterns over time for better accuracy
  • ๐Ÿ”‹Shows hours remaining instead of just percentage
  • ๐Ÿ“ฑWorks across iPhone, iPad, and Apple Watch
  • ๐Ÿ’ฐOne-time purchase with no subscriptions
  • ๐Ÿ‘Clean, intuitive user interface design
  • โšกMinimal resource consumption
  • ๐ŸŽจApple-like aesthetic and polish

Negative things

  • ๐Ÿ›Complication fails to update frequently
  • โŒWidget missing or not appearing on installation
  • ๐Ÿ”ดInaccurate battery predictions, especially on newer devices
  • โฐUpdates only once per hour, causing stale data
  • ๐Ÿ“‰Accuracy takes weeks to improve on Apple Watch
  • ๐ŸšซIncompatible with watchOS 10/11 and newer devices
  • ๐Ÿ’ฅApp crashes or becomes non-functional
  • โš ๏ธShows incorrect battery percentages after charging
  • ๐Ÿ”ŒDrains watch battery significantly
  • ๐Ÿ˜žLacks developer support and responsiveness
  • ๐Ÿ”„Data resets unexpectedly after device repairs
  • ๐Ÿ“ŠGraphs display incorrectly or inverted
  • โณLong initialization period required for data collection
See all reviews

What's New in Battery Grapher

2.0.7

September 22, 2026

fixing widgets

Charts

Top Paid

๐Ÿ“‰ย 160-17

Utilities

This app dropped -17 positions in Utilities chart.

Last updated on November 1, 2026.

User reviews

Most RecentHighest RatedLowest Rated

so great

a well done indie app like this deserves our support. go get it.
Bbraveboat

Danke fรผr das schnelle Update

Es ist einfach eine App die bei mir im Hintergrund lรคuft immer benutzt wird und ich nie drรผber nachdenke. Bis ios27 ein Update benรถtigt hat.
Sie tut genau was sie soll und dafรผr liebe ich sie.
SSedrah

Nice

I have an idea for a feature. With the new charge limit for preserving your battery health, it would be cool if I could tell the app that Iโ€™m limiting charge to X percent and for it to base its average battery life on that. Idk if itโ€™s already doing that though tbh. Otherwise nice app.
RRockybulwinkle

Battery

Seit gestern keine Anzeige mehr
EEZ70

Random?

I added the widget, but after a few months the app is not able to recognize charge-discharge cycles. It represents always a straight line going up and then down..
DDbio8
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User experience

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Reported Bugs

18 issues

Widget not displaying on initial installation

Bug

Complication shows stale data and doesn't refresh automatically

Bug

Battery percentage stuck at incorrect values (e.g., 73%, 68%)

Bug

Accuracy status fluctuates rapidly between good and bad

Bug

Missing data warnings despite app being in dock

Bug

Charge-discharge cycle recognition fails (shows straight lines)

Bug

App crashes on iPad and certain iOS versions

Bug

Complication capped at 47-48 hours on Apple Watch Ultra

Bug

Incorrect battery readings after full charge

Bug

Notifications arrive delayed or not at all

Bug

App shows charging when device is not charging

Bug

Data loss after watch pairing/unpairing

Bug

Graphs display inverted or incorrect usage patterns

Bug

24-hour time format setting non-functional

Bug

Text cutoff on complication at bottom of watch face

Bug

Accuracy never improves beyond 'bad' status

Bug

App requires manual watch face switching to update

Bug

Predictions wildly inaccurate on newer Apple Watch models

Bug
โœจ

Requested Features

18 requests

Watch complication for Smart Stack (watchOS 10+)

Feature

Support for Apple Watch Ultra with correct 36-hour battery display

Feature

Low power mode detection and separate prediction profiles

Feature

Force refresh button in app

Feature

More frequent update intervals (user-configurable)

Feature

24-hour time format option

Feature

Charging time estimation while device is charging

Feature

Notifications for full charge completion

Feature

Battery percentage display in widgets

Feature

MacBook app version

Feature

App-specific battery drain identification

Feature

Historical data view (weekly/monthly)

Feature

Cross-device battery information (iPhone battery on Watch, etc.)

Feature

Landscape mode graph expansion

Feature

Multiple widget size options

Feature

Portuguese/Brazilian Portuguese localization

Feature

Manual dark mode toggle for iPhone

Feature

Watch complication for multiple stacks

Feature

FAQ

What does Battery Grapher do?

Battery Grapher graphs your historical battery levels and learns your habits to make smart predictions about your future battery levels. It helps you plan when to charge your device by showing you how much time you have left before your battery runs out.

How does Battery Grapher help extend battery life?

The app is developed with energy consumption in mind and has almost no impact on your device's battery life. It runs a background task only once an hour and does not require a network connection, keeping energy usage extremely low.

What kind of notifications can I set up?

You can set up customizable notifications to fit your needs. The app can alert you when your battery drops below a preset percentage or if you only have a certain number of hours left before your battery runs out. Note that this feature is currently only available on watchOS.

Is Battery Grapher compatible with widgets and complications?

Yes, Battery Grapher supports all complications and widget sizes. You can display information like hours before needing to charge or the current battery percentage directly on your watch face or home screen. These can be customized within the app.

Is Battery Grapher free to use?

Yes, based on the provided information, Battery Grapher is a free application. It does not have in-app purchases or advertisements, meaning you can use all its features without any cost.