# Charging Engine vs SmartHouse For A101

The clearest difference is in-app purchases: SmartHouse For A101 at none against Charging Engine's 12. Charging Engine's advantage is device support and iOS requirement (12.0 vs 15.0). On price there is nothing between them.

Both are free to download. Charging Engine sells 12 in-app purchases, starting at $3.99 per 7 days. SmartHouse For A101 asks for nothing beyond the download.

## The numbers

| Metric | Charging Engine | SmartHouse For A101 |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Subscription | — |
| Size | 112 MB | 17 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Bluewolf Technology Limited](https://appshunter.io/developer/1477300424) | [Energy Solutions Corporation](https://appshunter.io/developer/1517358694) |

## 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


### SmartHouse For A101

[App page](https://appshunter.io/ios/app/smarthouse-for-a101/id6457259067)

**In-app purchases:** none


## Frequently asked questions

### Is Charging Engine free?

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

### Is SmartHouse For A101 free?

SmartHouse For A101 is free to download, with no in-app purchases.

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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.*