# Charging Engine vs DeathNote App

The clearest difference is update cadence: Charging Engine at every 6 weeks against DeathNote App's every 16 months. Charging Engine also leads on iOS requirement (12.0 vs 15.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Charging Engine sells 12 in-app purchases, starting at $3.99 per 7 days and DeathNote App sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Charging Engine ships an update every 6 weeks, DeathNote App every 16 months. The most recent releases landed on September 26, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Charging Engine | DeathNote App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (11K ratings)](https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907/reviews)** | — |
| Number of ratings | **11K** | — |
| Positive reviews | 51.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 16 months |
| Monetization | Subscription | — |
| Size | 112 MB | 50 MB |
| Requires iOS | **12.0** | 15.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bluewolf Technology Limited](https://appshunter.io/developer/1477300424) | [SH Innovation](https://appshunter.io/developer/1607910008) |

## What reviewers say

### Charging Engine

[App page](https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907)

Enhance your phone's charging experience with dynamic, futuristic animations and live wallpapers. Visualize battery performance and enjoy regular content updates to keep your device looking fresh and engaging.

**Highlights:** Futuristic charging animations, High-definition dynamic screensavers, Dozens of 3D charging wallpapers, Live wallpaper collections, Battery performance monitor, Regular content updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChargingEngine Subscription | $3.99 | per 7 days |
| ChargingEngine Subscription | $3.99 | per 7 days |
| Weekly subscription | $4.99 | per 7 days |
| ChargingEngine Subscription | $19.99 | per month |
| ChargingEngine Subscription | $19.99 | per month |
| ChargingEngine Subscription | $19.99 | per month |
| ChargingEngine Subscription | $23.99 | per month |
| ChargingEngine Subscription | $23.99 | per month |
| ChargingEngine Subscription | $69.99 | per year |
| ChargingEngine Subscription | $69.99 | per year |
| ChargingEngine Subscription | $69.99 | per year |
| ChargingEngine lifetime | $69.99 | one-time |

**What reviewers like**

- 🚀 Charging animations are cool
- 👍 Variety of wallpaper options
- 💡 Customizable charging experience

**What reviewers complain about**

- 🔒 Requires subscription to access full features
- 🐛 Buggy and crashes frequently
- 🔋 Drains battery when app is open
- 💸 Misleading about free trial, charges immediately

**Reported bugs**

- Wallpapers don't work as advertised
- App only functions when kept open during charging
- Subscription cannot be easily canceled

**Requested features**

- Add search bar to find desired wallpapers
- Allow users to upload their own photos/videos
- Provide option to mute sound effects
- Make app fully free without subscription


### DeathNote App

[App page](https://appshunter.io/ios/app/deathnote-app/id1607910006)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze | $0.99 | per month |
| Silver | $1.49 | per month |
| Gold | $3.99 | per month |
| Platinum | $9.99 | per month |


## Frequently asked questions

### Is Charging Engine free?

Charging Engine is free to download, with in-app purchases available.

### Is DeathNote App free?

DeathNote App is free to download, with in-app purchases available.

### Do Charging Engine or DeathNote App have ads?

Neither Charging Engine nor DeathNote App shows ads.

### Which is updated more often, Charging Engine or DeathNote App?

Charging Engine ships an update every 6 weeks, and DeathNote App every 16 months. Most recently, Charging Engine was updated on September 26, 2026 and DeathNote App on September 16, 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.*