Comparison

Battery Watcher vs CaringCharge for Watch

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

Head to head
About

Battery Watcher

Monitor your iPhone's battery status directly from your Apple Watch. View current levels, historical data, and receive alerts for a full charge. Perfect for quick checks without needing your phone.

Highlights
  • iPhone battery status on Apple Watch
  • Watch face complications
  • 24-hour battery history
  • Visual charge history graph
  • Full charge alerts
Features
Read full description

Battery Watcher gives you the status of your iPhone battery right on your Apple Watch! Battery Watcher now supports watchOS 5 and Apple Watch Series 4!! Battery Watcher now leverages the new Apple Watch background processing to keep your Apple Watch up to date with the latest battery level of your iPhone. New Features: - Complications: Check the status of your iPhone battery right from your watch face! - Time Travel: Now you can look back and see what the power level of your iPhone was in the last 24 hours - Battery Level Premium: Upgrade to Battery Level Premium and get the charge history of iPhone battery right on your watch in an easy to use visual graph. Use the Digital Crown to view all the iPhone battery level history for the past 24 and 72 hours! - Full Charge Alert: If you purchase Battery Level Premium, you can receive an alert when your iPhone reaches full charge! For those that want to know how much battery life your iPhone has left without pulling it out of your pocket, this app is for you!

About

CaringCharge for Watch

This app offers semi-automatic control over your Apple Watch charging to help improve battery longevity. It allows you to set custom charging limits, such as stopping at 80%, and integrates with IFTTT Webhook for smart plug control. Optimize your charging habits for better battery health.

Highlights
  • Semi-automatic charging control
  • Custom charging limits (e.g., 80%)
  • IFTTT Webhook integration
  • Battery health optimization
  • Charge speed measurement modes
Read full description

Controls charging of Apple Watch and will improve battery life with the outlet which works with IFTTT Webhook. In a word, this App is the semi automatic version of WatchOS standard function 'Optimized Battery Charging'. You can set as you like because of 'non full auto' settings (e.g. In 'Normal' and 'Cut at 80%' mode, the App stops charging at 80% without restarting to 100%). The concept is almost equal to the iOS App 'CharingCharge'. Difference is the way to control the smart plug. This App uses IFTTT Webhook service instead of HomeKit. Take a look at the App's page in the App Store, please. And you can see how this App control charging. https://apps.apple.com/us/app/caringcharge/id1505303275 'Caring' mode suspend charging when reached to the 80% capacity, afterwards restart at the time set. 'Normal' mode simply charge until reaching the capacity set. Difference is if the App restart charging. '80% cut-off Normal Charge Mode' is very suitable for storing the devices as it will damage the battery when fully charged or empty. Connect charger to the smart plug working with the IFTTT Webhook service, please. Lower current (not faster) charger is better in terms of battery damage. The App can't work completely on background due to restriction of WatchOS. So this App can't control charging completely, but execute as ideal as possible. 'Optimized Battery Charging' is recommended to 'Off' not to conflict with this App. (Settings -> Battery -> Battery Health -> ) Two 'Measure' mode is only for measuring the charge speed only and is different from the function with the same name in the iOS app "Caring Charge".

Screenshots

Battery Watcher2 screens
CaringCharge for Watch2 screens

Verdict

The call

The clearest difference is review sentiment: Battery Watcher at 71% against CaringCharge for Watch's 0%. Battery Watcher also leads on rating (4.5 vs 1.0) and ads (none vs shown). CaringCharge for Watch's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs fortnightly). On price 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 Watcher sells 1 one-off in-app purchase. CaringCharge for Watch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Battery Watcher holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Battery Watcher has 339 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of Battery Watcher's written reviews are positive against 0% of CaringCharge for Watch's.

UpkeepUpdate frequency

Battery Watcher ships an update fortnightly, CaringCharge for Watch every 4 days. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

Scorecard8 real differences · 2 level
Battery Watcher versus CaringCharge for Watch: the parameters behind the verdict, then further details
ParameterBattery WatcherCaringCharge for Watch
PriceFreeFree
Rating4.5 (339 ratings) — better1.0 (2 ratings)
Positive reviews70.7% of reviews — better0.0% of reviews
Number of ratings339 — better2
Update frequencyFortnightlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS18.613.0 — better
Further details — not scored
Size2 MB18 MB
Age rating4+4+
DeveloperSlackerz IncYuji Nagata

Customer experience

Battery Watcher

All ratings338 ratings
Positive89.3%
Neutral4.1%
Negative6.5%
Written reviews92 reviews
Positive70.7%
Neutral6.5%
Negative22.8%

CaringCharge for Watch

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Battery Watcher

Reported bugs

9 issues
  • App fails to communicate with iPhone from Watch
  • Battery graphic jumps out of place on iPhone app
  • Complication doesn't update without opening app
  • Inaccurate battery percentage readings
  • App disconnects from Watch frequently
Show 4 more
  • Premium full-charge notification doesn't work
  • App crashes or becomes unresponsive after updates
  • White battery icon stuck in corner with display glitches
  • Crown interaction doesn't affect graphing as advertised

Requested features

8 requests
  • Low battery mode functionality
  • Battery percentage viewing on iPhone (currently watch-only)
  • Custom notification alerts at user-defined battery percentages
  • User-configurable logging intervals for battery tracking
  • Settings menu to customize watch display and disable text clutter
Show 3 more
  • Complication support for watch face
  • Glance feature for quick access
  • Better customization options for watch app display

CaringCharge for Watch

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Battery Watcher

One-time1
  • Battery Watcher Premium$1.99
None

CaringCharge for Watch

No in-app purchases

Questions

Is Battery Watcher free?
Battery Watcher is free to download, with in-app purchases available.
Is CaringCharge for Watch free?
CaringCharge for Watch is free to download, with no in-app purchases.
Which has better reviews, Battery Watcher or CaringCharge for Watch?
Battery Watcher is rated higher. Battery Watcher averages 4.5 out of 5 from 339 ratings, while CaringCharge for Watch averages 1.0 from 2 ratings.
Do Battery Watcher or CaringCharge for Watch have ads?
CaringCharge for Watch shows ads; Battery Watcher does not.
Which is updated more often, Battery Watcher or CaringCharge for Watch?
Battery Watcher ships an update fortnightly, and CaringCharge for Watch every 4 days. Most recently, Battery Watcher was updated on October 23, 2026 and CaringCharge for Watch on October 16, 2026.

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