# BatteryFull + (Alarm) vs Dark Light

The clearest difference is in-app purchases: Dark Light at none against BatteryFull + (Alarm)'s 1. Dark Light also leads on update cadence (weekly vs monthly) and iOS requirement (15.6 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. BatteryFull + (Alarm) sells 1 one-off in-app purchase. Dark Light asks for nothing beyond the download.

BatteryFull + (Alarm) ships an update monthly, Dark Light weekly. Both last shipped on October 14, 2026.

## The numbers

| Metric | BatteryFull + (Alarm) | Dark Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/batteryfull-plus-alarm/id325915322/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 3 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Teokoul](https://appshunter.io/developer/317751186) | [涛 陈](https://appshunter.io/developer/1886152591) |

## What reviewers say

### BatteryFull + (Alarm)

[App page](https://appshunter.io/ios/app/batteryfull-plus-alarm/id325915322)

Receive alerts when your device's battery reaches a custom charge level. Monitor charging progress and track historical charging sessions to optimize battery health. An Apple Watch app allows for convenient checking of charging status.

**Highlights:** Customizable battery charge alerts, Apple Watch charging progress monitoring, Charging session history tracking, Battery life optimization tips, Energy saving features

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $0.99 | one-time |


### Dark Light

[App page](https://appshunter.io/ios/app/dark-light-web-theme-switch/id6781749180)

**Features:** Safari Extension, Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BatteryFull + (Alarm) free?

BatteryFull + (Alarm) is free to download, with in-app purchases available.

### Is Dark Light free?

Dark Light is free to download, with no in-app purchases.

### Do BatteryFull + (Alarm) or Dark Light have ads?

Neither BatteryFull + (Alarm) nor Dark Light shows ads.

### Which is updated more often, BatteryFull + (Alarm) or Dark Light?

BatteryFull + (Alarm) ships an update monthly, and Dark Light weekly. Most recently, BatteryFull + (Alarm) was updated on October 14, 2026 and Dark Light on October 14, 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.*