# BatteryMonitorComplication vs World Clock Time Zones

The clearest difference is price: World Clock Time Zones at Free against BatteryMonitorComplication's $0.99. BatteryMonitorComplication's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 80%). On rating, ratings volume, ads and device support there is nothing between them.

World Clock Time Zones is free to download; BatteryMonitorComplication costs $0.99 up front. World Clock Time Zones sells 3 one-off in-app purchases. BatteryMonitorComplication asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for BatteryMonitorComplication against 5.0 for World Clock Time Zones. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 100% of BatteryMonitorComplication's written reviews are positive against 80% of World Clock Time Zones's.

BatteryMonitorComplication ships an update weekly, World Clock Time Zones every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BatteryMonitorComplication | World Clock Time Zones |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/batterymonitorcomplication/id6742497714/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/world-clock-time-zones-timo/id6762064286/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Paid | **Free** |
| Size | 9 MB | 18 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Michael Burch](https://appshunter.io/developer/1797381352) | [Michal Ferak](https://appshunter.io/developer/1793983762) |

## What reviewers say

### BatteryMonitorComplication

[App page](https://appshunter.io/ios/app/batterymonitorcomplication/id6742497714)

This app estimates your Apple Watch's remaining battery life, offering a more detailed forecast than just a percentage. It learns from your usage patterns and displays the estimated time directly on your watch face complication.

**Highlights:** Smart battery life calculation, Watch face complication display, Automatic 5% battery measurements, Adjusts for workouts and high drain, Long-term usage statistics, Measurement history

**Features:** Apple Watch app

**In-app purchases:** none


### World Clock Time Zones

[App page](https://appshunter.io/ios/app/world-clock-time-zones-timo/id6762064286)

Easily track world times and compare time zones with a beautifully designed, modern interface. Organize cities into custom groups for work, travel, or family, and instantly understand day phases and time differences across countries.

**Highlights:** Track multiple cities and countries, Instant time zone comparison, Home screen widgets, Organize cities into custom groups, Visualize day phases, Clean, modern interface

**Features:** macOS Compatibility, Apple Watch app, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso | $0.99 | one-time |
| Cappuccino | $2.99 | one-time |
| Flat White | $3.99 | one-time |


## Frequently asked questions

### Is BatteryMonitorComplication free?

BatteryMonitorComplication costs $0.99, with no in-app purchases.

### Is World Clock Time Zones free?

World Clock Time Zones is free to download, with in-app purchases available.

### Which has better reviews, BatteryMonitorComplication or World Clock Time Zones?

BatteryMonitorComplication and World Clock Time Zones are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do BatteryMonitorComplication or World Clock Time Zones have ads?

Neither BatteryMonitorComplication nor World Clock Time Zones shows ads.

### Which is updated more often, BatteryMonitorComplication or World Clock Time Zones?

BatteryMonitorComplication ships an update weekly, and World Clock Time Zones every 3 weeks. Most recently, BatteryMonitorComplication was updated on October 28, 2026 and World Clock Time Zones on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*