# Tomzon vs Charging Engine

The clearest difference is review sentiment: Charging Engine at 52% against Tomzon's 0%. Charging Engine also leads on rating (4.8 vs 2.9) and ratings volume (11K vs 8). Tomzon's advantage is in-app purchases (none vs 10) and iOS requirement (9.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Charging Engine sells 10 in-app purchases, starting at $3.99 per 7 days. Tomzon asks for nothing beyond the download.

Charging Engine holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: Charging Engine has 11K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 0% of Tomzon's written reviews are positive against 52% of Charging Engine's.

Tomzon ships an update every 3 weeks, Charging Engine every 6 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Tomzon | Charging Engine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (8 ratings)](https://appshunter.io/ios/app/tomzon-v/id1558055032/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907/reviews)** |
| Number of ratings | 8 | **11K** |
| Positive reviews | 0.0% of reviews | **51.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Subscription |
| Size | 97 MB | 112 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shantou Xiaoge Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1407130873) | [Bluewolf Technology Limited](https://appshunter.io/developer/1477300424) |

## What reviewers say

### Tomzon

[App page](https://appshunter.io/ios/app/tomzon-v/id1558055032)

Control a toy quadrocopter using your device via Wi-Fi. Stream live video directly from the drone in real-time.

**Highlights:** Quadrocopter control via Wi-Fi, Real-time video transfer, Live video streaming, Toy drone operation

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 (10)**

| 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 | $23.99 | per month |
| ChargingEngine Subscription | $23.99 | per month |
| 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


## Frequently asked questions

### Is Tomzon free?

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

### Is Charging Engine free?

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

### Which has better reviews, Tomzon or Charging Engine?

Charging Engine is rated higher. Tomzon averages 2.9 out of 5 from 8 ratings, while Charging Engine averages 4.8 from 11K ratings.

### Do Tomzon or Charging Engine have ads?

Neither Tomzon nor Charging Engine shows ads.

### Which is updated more often, Tomzon or Charging Engine?

Tomzon ships an update every 3 weeks, and Charging Engine every 6 weeks. Most recently, Tomzon was updated on November 3, 2026 and Charging Engine on November 10, 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.*