PhoneBattery vs phoneWatcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhoneBattery
This app displays your iPhone's battery level directly on your Apple Watch. Avoid constantly checking your phone with quick glances at your wrist, perfect for workouts, commutes, or when your phone is just out of reach.
- iPhone battery level on Apple Watch
- Smart battery notifications
- Apple Watch complications
- Alternative app icons
- Clean and simple interface
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PhoneBattery is the tiny little app that solves a surprisingly annoying problem How much battery is left on your iPhone? And why do you need to dig it out of your pocket every time just to find out? With PhoneBattery, you can simply glance at your Apple Watch and boom — mystery solved. Perfect for: • Workouts where your phone is buried somewhere in a sweaty pocket • Busy commutes with too many bags and not enough hands • Couch-days where the phone is just a little too far away No magic. No fuss. Just your iPhone battery, right where it should be: on your wrist. FEATURES • Smart battery notifications (never get caught at 2 percent again) • Clean and simple interface (nothing extra, no clutter) • Lots of Apple Watch complications • Alternative app icons (because vibes matter) • Free, no ads, and made by one indie developer • Optional tips if you want to support future features Need help or want to say hi? help@marcelvoss.com
phoneWatcher
Receive timely alerts on your smartwatch when your phone's battery level drops below a customizable threshold. Ensure you're never caught off guard by a dead phone battery again.
- Watch notifications for low phone battery
- Customizable notification threshold
- Supports all Watch complications
- Regular phone battery checks
- Avoid dead phone surprises
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Get alerted on your Watch when your phone is low on battery. Select notification threshold according to your risk tolerance. Supports all Watch complications. Just add one to your favorite Watch Face and your phone's battery will be checked regularly. Don't get surprised by a dead phone battery again.
Screenshots
Verdict
The clearest difference is in-app purchases: phoneWatcher at none against PhoneBattery's 4. phoneWatcher also leads on iOS requirement (16.0 vs 18.0). PhoneBattery's advantage is ratings volume (381 vs 4) and rating (4.3 vs 4.0). On price, update cadence, ads 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
Both are free to download. PhoneBattery sells 4 one-off in-app purchases. phoneWatcher asks for nothing beyond the download.
PhoneBattery holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: PhoneBattery has 381 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 58% of PhoneBattery's written reviews are positive against 50% of phoneWatcher's.
PhoneBattery ships an update every 8 days, phoneWatcher every 2 weeks. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.
| Parameter | PhoneBattery | phoneWatcher |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (381 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 58.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 381 — better | 4 |
| Update frequency | Every 8 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcel Voss | Erwin Mazariegos |
Customer experience
PhoneBattery
phoneWatcher
Bugs and requests
PhoneBattery
Reported bugs
10 issues- Complication shows skeleton loading screen but never loads data
- App displays blank battery icon with no charge information
- Battery percentage shows incorrect values
- App only works if opened on phone first
- Incompatible with watchOS 7 and iOS 14+
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- Circular display setting doesn't apply
- Low battery notifications never trigger
- App crashes or fails to display on Apple Watch
- Settings changes don't persist (e.g., round to long battery display)
- Inconsistent functionality across Watch Series 3, 5, 6 models
Requested features
8 requests- Add working complication for watch face integration
- Support for circular battery indicator display
- Sound notifications for low battery alerts
- Display phone signal strength information
- Show Bluetooth headphone battery percentage
Show 3 moreShow fewer
- Change Apple Watch app icon customization
- Battery health information display
- Regular app updates for current OS compatibility
phoneWatcher
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PhoneBattery
- Small tip$0.99
- Medium tip$1.99
- Large tip$3.99
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- Generous tip$4.99
phoneWatcher
No in-app purchases
Questions
Is PhoneBattery free?
Is phoneWatcher free?
Which has better reviews, PhoneBattery or phoneWatcher?
Do PhoneBattery or phoneWatcher have ads?
Which is updated more often, PhoneBattery or phoneWatcher?
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