Comparison

Battery Watcher vs Passwd

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

Passwd

Features
Read full description

Secure. Simple. Powerful. Passwd is a lightweight, secure password manager for iPhone and iPad. Save all your login credentials, generate strong passwords, and autofill them with ease using the iOS system extension. Passwd also supports 2FA codes for extra protection which means no more switching between apps. Whether you're logging in to apps or websites, Passwd keeps your passwords safe, synced, and ready when you need them. Features: • Password Manager - Save and organize all your logins in one secure place • Autofill Support - Use the Password AutoFill extension to quickly sign in to apps and websites • 2FA Code Generator - Store and generate two-factor authentication (TOTP) codes securely • Strong Password Generator - Create unique, secure passwords with customizable options • iCloud Sync - Access your passwords across all your Apple devices instantly • Secure Encryption - Your data is encrypted on device and never shared

Screenshots

Battery Watcher2 screens
Passwd4 screens

Verdict

The call

The clearest difference is price: Battery Watcher at Free against Passwd's $0.99. Passwd's advantage is in-app purchases (none vs 1) and update cadence (weekly vs fortnightly). On ads, device support and iOS requirement 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

Battery Watcher is free to download; Passwd costs $0.99 up front. Battery Watcher sells 1 one-off in-app purchase. Passwd asks for nothing beyond the download.

UpkeepUpdate frequency

Battery Watcher ships an update fortnightly, Passwd weekly. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Battery Watcher versus Passwd: the parameters behind the verdict, then further details
ParameterBattery WatcherPasswd
PriceFree — better$0.99
Rating4.5 (339 ratings) — better—
Positive reviews70.7% of reviews—
Number of ratings339 — better—
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS18.617.6 — better
Further details — not scored
Size2 MB8 MB
Age rating4+4+
DeveloperSlackerz IncSlayter Development

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

Passwd

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Battery Watcher

One-time1
  • Battery Watcher Premium$1.99
None

Passwd

No in-app purchases

Questions

Is Battery Watcher free?
Battery Watcher is free to download, with in-app purchases available.
Is Passwd free?
Passwd costs $0.99, with no in-app purchases.
Do Battery Watcher or Passwd have ads?
Neither Battery Watcher nor Passwd shows ads.
Which is updated more often, Battery Watcher or Passwd?
Battery Watcher ships an update fortnightly, and Passwd weekly. Most recently, Battery Watcher was updated on October 23, 2026 and Passwd on October 27, 2026.

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