Comparison

Battery vs Zen Battery

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Battery

Explore the fundamental principles of electrochemical cells and their conversion of chemical to electrical energy. Understand the distinction between disposable primary batteries and rechargeable secondary batteries, and their diverse applications.

Highlights
  • Electrochemical cell principles
  • Chemical to electrical energy conversion
  • Primary (disposable) batteries
  • Secondary (rechargeable) batteries
  • Applications of batteries
Features
Read full description

An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. Since the invention of the first battery (or "voltaic pile") in 1800 by Alessandro Volta, batteries have become a common power source for many household and industrial applications. According to a 2005 estimate, the worldwide battery industry generates US$48 billion in sales each year, with 6% annual growth. There are two types of batteries: primary batteries (disposable batteries), which are designed to be used once and discarded, and secondary batteries (rechargeable batteries), which are designed to be recharged and used multiple times. Miniature cells are used to power devices such as hearing aids and wristwatches; larger batteries provide standby power for telephone exchanges or computer data centers.

About

Zen Battery

This app provides detailed battery information for your iPhone and iPad, including remaining hours for various activities. Customize the visual display with fluid animations and color options. Receive alerts when your device is fully charged.

Highlights
  • Battery life estimation for music, video, calls, and internet
  • Customizable 'Zen' display modes
  • Interactive fluid battery animation
  • Adjustable liquid color and battery design
  • Full charge warning sound
  • Widgets for quick battery status
Features
Read full description

Here you have the definitive battery application for your iPhone and iPad from Shinobit! A quick glance will let you know how many hours you have left for listening to music, watching videos, talking on the phone and surfing the Internet. If you want your battery to be even more "Zen", touching the screen once will hide the icons, leaving only the time and the battery charge percentage on the screen. Touching the screen a second time will only leave the battery. Touching a third time brings back all the data you had at the start. Move the device to see how the fluid moves around inside the battery, tilt it and you will see how it moves from one side to the other. You can change the color of the liquid inside the battery and the battery design that best suits your personality. Once the battery is charged, the application will make a warning sound. A subscription is required to unlock the full features of Zen Battery. Subscription Details: * Monthly Subscription * Annual Subscription with a 3-day free trial. All plans offer all premium features with the flexibility to cancel anytime. - Payment will be charged to your iTunes Account at confirmation of purchase. - Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - You can manage your subscriptions and turn off auto-renewal by going to your Account Settings after purchase. The times and percentages are displayed with 5-percent increases. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Battery1 screens
Zen Battery4 screens

Verdict

The call

The clearest difference is review sentiment: Zen Battery at 89% against Battery's 29%. Zen Battery also leads on rating (4.7 vs 3.5) and ratings volume (8.1K vs 13). Battery's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (monthly vs every 18 months). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Battery sells 1 one-off in-app purchase and Zen Battery sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Zen Battery holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Zen Battery has 8.1K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 29% of Battery's written reviews are positive against 89% of Zen Battery's.

UpkeepUpdate frequency

Battery ships an update monthly, Zen Battery every 18 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Battery versus Zen Battery: the parameters behind the verdict, then further details
ParameterBatteryZen Battery
PriceFreeFree
Rating3.5 (13 ratings)4.7 (8.1K ratings) — better
Positive reviews29.4% of reviews89.1% of reviews — better
Number of ratings138.1K — better
Update frequencyMonthly — betterEvery 18 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS6.0 — better17.6
Further details — not scored
Size4 MB117 MB
Age rating4+4+
DeveloperOrgajja Co LtdShinobit LLC

Customer experience

Battery

All ratings13 ratings
Positive61.5%
Neutral7.7%
Negative30.8%
Written reviews119 reviews
Positive29.4%
Neutral10.1%
Negative60.5%

Zen Battery

All ratings8,117 ratings
Positive93.2%
Neutral3.8%
Negative3.0%
Written reviews267 reviews
Positive89.1%
Neutral4.5%
Negative6.4%

User reviews

Battery

From 13 App Store ratings

What we love

  • 🔋 Basic battery info provided
  • 👍 Simple and not elaborate
  • 👍 Useful for iPod Touch
  • 👍 Accurate battery percentage
  • 👍 Helpful for knowing battery level

Room to improve

  • 👎 Very basic information
  • 👎 Forced to download other apps
  • 👎 Too many ads
  • 👎 Inaccurate battery percentage
  • 👎 App crashes frequently

Zen Battery

From 8.1K App Store ratings

What we love

  • 👍 Reliable battery monitoring
  • 🚀 Accurate battery percentage display
  • 💡 Customizable battery color
  • 👍 Simple and easy to use
  • 👍 Large, clear battery visualization

Room to improve

  • 🔋 High battery consumption
  • 🐛 Inconsistent battery percentage accuracy
  • 🔋 Drains device battery quickly
  • 🔒 Subscription-based model

Bugs and requests

Battery

Reported bugs

20 issues
  • Crashes on opening
  • Opens ads and redirects
  • Lagging out device
  • Cannot use all functions without download
  • Doesn't open
Show 15 more
  • Black screen then crash
  • App crashes immediately after update
  • Force closes
  • Battery percentage inaccurate
  • App doesn't work
  • Keeps flashing back to home screen
  • Latest update broke the app
  • Advertisements prevent app from working
  • App crashes my iPod
  • App crashes whenever I want to use it
  • App keeps shutting off
  • Doesn't load for many users
  • App doesn't start up
  • Keeps booting back to main screen
  • Never works right

Requested features

8 requests
  • Remove ads
  • Upgrade option to remove ads
  • Add more functions
  • Remove slot machine game prompt
  • Fix crashing issues
Show 3 more
  • Update app for stability
  • Add settings for personalization
  • Explain calendar function

Zen Battery

Reported bugs

2 issues
  • App freezes or crashes
  • Ads break app functionality

Requested features

4 requests
  • 12-hour clock option
  • Battery saver mode
  • Widget support
  • Ability to disable ads

In-app purchases

1 purchases

Battery

One-time1
  • Upgrade$0.99
3 purchases

Zen Battery

Subscriptions2
  • Monthly Subscription3 Days trial$1.991 Month
  • Yearly Subscription3 Days trial$9.991 Year
One-time1
  • Lifetime$19.99

Questions

Is Battery free?
Battery is free to download, with in-app purchases available.
Is Zen Battery free?
Zen Battery is free to download, with in-app purchases available.
Which has better reviews, Battery or Zen Battery?
Zen Battery is rated higher. Battery averages 3.5 out of 5 from 13 ratings, while Zen Battery averages 4.7 from 8.1K ratings.
Do Battery or Zen Battery have ads?
Neither Battery nor Zen Battery shows ads.
Which is updated more often, Battery or Zen Battery?
Battery ships an update monthly, and Zen Battery every 18 months. Most recently, Battery was updated on October 8, 2026 and Zen Battery on October 14, 2026.

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