# Charging Engine - 4Kwallpapers — Cool Charge Master & Effects > Dynamic charging animations and live wallpapers with battery performance monitoring. (iPhone/iPad app by Bluewolf Technology Limited.) - Source: https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907 (this page in markdown: same URL + `.md`) - Developer: [Bluewolf Technology Limited](https://appshunter.io/developer/1477300424) - Category: Utilities - Price: Free with in-app purchases - Rating: 4.80/5 from 10,572 App Store ratings · 225 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 112 MB - Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 2 more - Released: 2022-01-20 - Data updated: 2026-08-27 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907/reviews.md ## What is Charging Engine? Charging Engine provides a variety of cool and futuristic charging animations. When your phone is charging, just plug in the power supply, and an exclusive and exquisite high-definition dynamic screensaver will be displayed instantly. Make your phone full of futuristic, eye-catching and fun! We provide dozens of 3D charging wallpapers, dynamic and cool wallpapers, the picture is smooth and delicate, and the frame will never drop. Follow our tutorial to guide you step by step. When you connect the device to the charger, the animation will appear immediately for you to watch. Add color to your life with a charging lock! With a top-notch wallpaper app, dazzle with a wide variety of unique wallpaper collections that can help your mobile experience go beyond your imagination. main feature: - Live wallpapers: No need to waste your time on internet research for wallpaper as you can find them all on this amazing app. anytime, anywhere, including abstract, animals, space, nature, flowers, fantasy and more! - Various charging animations: The editor has carefully selected dozens of different styles of live wallpapers for you, making your phone richer and far from boring! - Battery Performance Monitor: Visualize your phone device's battery capacity by watts. Check the charging history in the app to get a clear idea of ​​the available time in different situations. - Regular updates: from high-tech visualizations to light-hearted scenarios - you'll find what you're looking for! We keep all categories fresh and exciting by adding new content. stay tuned! [advanced edition] Upgrade - weekly subscription: $3.99/ week with 3-day free trial；$3.99/week Upgrade - monthly subscription: $19.99/ month with 3-day free trial；$19.99/month Upgrade - annual subscription: $69.99/ year，with 3-day free trial； $69.99/ year Payment will be collected from your iTunes account after you confirm the purchase. The system will automatically renew the subscription for you, unless the automatic renewal setting is turned off 24 hours before the end of the current subscription period. Your account will be charged the next renewal fee within 24 hours before the end of this subscription period and the renewal fee will be confirmed. Subscriptions will be controlled by you, and automatic renewal can be turned off in the user's account Settings after purchase. When you purchase a subscription to this version, you will lose any unused portion of the free trial period. Terms of service: https://sites.google.com/view/terms-of-service-of-charging-w/%E9%A6%96%E9%A1%B5 Privacy agreement: https://sites.google.com/view/privacypolicyofcharging/%E9%A6%96%E9%A1%B5 If you have any other questions, please contact us through the following email zhiyinzhihui22@163.com ## Key features - Futuristic charging animations - High-definition dynamic screensavers - Dozens of 3D charging wallpapers - Live wallpaper collections - Battery performance monitor - Regular content updates ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | ChargingEngine Subscription | $3.99 | per 7 days | | ChargingEngine Subscription | $19.99 | per month | | ChargingEngine Subscription | $69.99 | per year | | ChargingEngine Subscription | $3.99 | per 7 days | | ChargingEngine Subscription | $69.99 | per year | | ChargingEngine Subscription | $19.99 | per month | | ChargingEngine Subscription | $69.99 | per year | | Weekly subscription | $4.99 | per 7 days | | ChargingEngine Subscription | $23.99 | per month | | ChargingEngine Subscription | $23.99 | per month | | ChargingEngine Subscription | $19.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | ChargingEngine lifetime | $69.99 | one-time | ## What do users think of Charging Engine? Overall sentiment: negative **Pros** - 🚀 Charging animations are cool - 👍 Variety of wallpaper options - 💡 Customizable charging experience **Cons** - 🔒 Requires subscription to access full features - 🐛 Buggy and crashes frequently - 🔋 Drains battery when app is open - 💸 Misleading about free trial, charges immediately **Commonly reported bugs** - Wallpapers don't work as advertised - App only functions when kept open during charging - Subscription cannot be easily canceled **Most 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 ## Recent user reviews (10 of 225) All indexed reviews: https://appshunter.io/ios/app/charging-engine-4kwallpapers/id1602309907/reviews.md ### 5/5 — 👍🏻 *2026-07-07, version 2.0.2* 👍🏻 ### 5/5 — Excellent *2026-02-15, version 2.0.2* I love the app ### 1/5 — 광고 어떻게 봄?? *2025-08-29* 또 단축어 계인용 게이블이 뭐임?? ### 1/5 — Waste *2025-06-21, version 2.0.2* Don’t bother!! The second it finishes loading a subscription window pops up. And it’s freakin expensive for what it is. These developers are delusional or have super inflated egos to think this it worth $24 a month! Nahahahah ### 1/5 — Dookie *2025-03-12, version 2.0.2* Yes it only works In the app Yes you need to pay a ridiculous subscription fee Yes it’s not worth it. Delete ### 5/5 — 𝕀𝕥'𝕤 𝕘𝕠𝕠𝕕!!! 𝔹𝕦𝕥 𝕟𝕠𝕥 𝕘𝕠𝕠𝕕 𝕖𝕟𝕠𝕦𝕘𝕙 *2025-02-07, version 2.0.1* 𝕀𝕥 𝕔𝕒𝕟 𝕞𝕒𝕜𝕖 𝕚𝕥 𝕘𝕠𝕠𝕕 𝕒𝕟𝕕 𝕗𝕦𝕟 𝕓𝕦𝕥 𝕨𝕙𝕪 𝕕𝕠 𝕨𝕖 𝕙𝕒𝕧𝕖 𝕥𝕠 𝕡𝕒𝕪 𝕝𝕚𝕜𝕖 𝕨𝕙𝕪 𝕒𝕟𝕕 𝕨𝕙𝕪 𝕕𝕠 𝕨𝕖 𝕙𝕒𝕧𝕖 𝕥𝕠 𝕙𝕒𝕧𝕖 𝔸𝔻'𝕤 𝕒𝕥 𝕝𝕖𝕒𝕤𝕥 𝕪𝕠𝕦 𝕔𝕒𝕟 𝕞𝕒𝕜𝕖 𝕚𝕥 𝕓𝕖𝕥𝕥𝕖𝕣. ### 1/5 — DESTROYS MY DEVICE *2025-02-04* I usually don’t make reviews but hi. So I opened the app cuz I found it on the App Store, right? And when I saw it, it looked cool. So, I opened the app and used it. It did not work. Ignore the good reviews. Next thing you know, it wants you to pay a scam $20 a month (Which isn’t even worth it) but it may not seem like much but it all adds up to something, It made my iPad glitchy and broken as it felt corrupted. It broke my iPad and I forgot most of it but DO NOT GET! It literally made my iPad corrupt. ### 1/5 — Subscription won’t cancel *2025-01-16, version 2.0.1* I’ve been trying to cancel this for months and keep getting charged weekly anyway ### 1/5 — Pas fiable *2024-09-30, version 2.0.1* Cette application n’est pas fiable et vous vole vos donnés sans constamment . ### 5/5 — Don’t ask people to pay *2024-08-01, version 2.0.0* Paying will make people dislike you guys not to rood ## Frequently asked questions about Charging Engine ### What does the Charging Engine app do? This app provides a variety of cool and futuristic charging animations that display when your phone is plugged in. It also offers a wide selection of live wallpapers and a battery performance monitor to visualize your phone's battery capacity. ### What are the key features of this app? Key features include dynamic charging animations, high-definition live wallpapers across various categories, a battery performance monitor that shows capacity in watts, and regular updates with new content. ### How much does the Charging Engine app cost? The app offers a subscription-based model with weekly, monthly, and annual plans. There is a 3-day free trial for all subscription options. Pricing details are available within the app's advanced edition section. ### What kind of content can I expect in the app? You can find dozens of 3D charging wallpapers, dynamic and cool wallpapers, and live wallpapers in categories like abstract, animals, space, nature, flowers, and fantasy. New content is added regularly. ### How do I manage my subscription? Subscriptions are managed through your iTunes account settings. You can control your subscriptions and turn off automatic renewal in your account settings after purchase. Unused portions of free trials are forfeited upon purchasing a subscription. ## Version history (last 5 releases) ### 2.0.2 — 2025-02-13 Fix known bugs ### 2.0.1 — 2024-08-28 Fix known issues. ### 2.0.0 — 2024-05-30 - Brand new UI style, hope you like it -Support dark mode ### 1.3.5 — 2024-03-12 Bug fixed. ### 1.3.4 — 2024-03-02 Bug fixed. ## Apps similar to Charging Engine | App | Rating | Price | Category | | --- | --- | --- | --- | | [Charging Animation for Battery](https://appshunter.io/ios/app/charging-animation-for-battery/id1672934637) | 4.6 (1,063) | Free | Utilities | | [Magic Charger-Charge Animation](https://appshunter.io/ios/app/magic-charger-charge-animation/id1588502226) | 4.7 (18,419) | Free | Utilities | | [Charger - Charging Play](https://appshunter.io/ios/app/charger-charging-play/id1533915562) | 4.7 (18,256) | Free | Utilities | | [Charging animation App](https://appshunter.io/ios/app/charging-animation-app/id1589679766) | 4.6 (324) | Free | Utilities | | [Charging Animation Play: Fun](https://appshunter.io/ios/app/charging-animation-play-fun/id1558492040) | 4.5 (594) | Free | Utilities | | [Battery Health - Charge Alarm](https://appshunter.io/ios/app/battery-health-charge-alarm/id1557004936) | 4.4 (552) | Free | Utilities | ## More apps by Bluewolf Technology Limited - [Lucky Life - Future Seer](https://appshunter.io/ios/app/lucky-life-future-seer/id1477300425) - [甜漫相机 -卡通照片编辑器](https://appshunter.io/ios/app/id1488900664) - [HeartRate Monitor & EZ Fasting](https://appshunter.io/ios/app/heartrate-monitor-and-ez-fasting/id1595560898) - [Holiday Cam -  Photo Editor](https://appshunter.io/ios/app/holiday-cam-photo-editor/id1595765708) - [Chatbabe](https://appshunter.io/ios/app/chatbabe/id6450213460) All apps by Bluewolf Technology Limited: https://appshunter.io/developer/1477300424 ## Related topics [cool wallpaper charging](https://appshunter.io/ios/topics/cool-wallpaper-charging) · [charger wallpaper](https://appshunter.io/ios/topics/charger-wallpaper) · [cool backgrounds charging](https://appshunter.io/ios/topics/cool-backgrounds-charging) · [cool wallpapers live charging](https://appshunter.io/ios/topics/cool-wallpapers-live-charging) · [charging wallpaper watt](https://appshunter.io/ios/topics/charging-wallpaper-watt) · [custom wallpaper charging](https://appshunter.io/ios/topics/custom-wallpaper-charging) · [charging wallpaper screen](https://appshunter.io/ios/topics/charging-wallpaper-screen) · [charging fun animation](https://appshunter.io/ios/topics/charging-fun-animation) · [free charging animations](https://appshunter.io/ios/topics/free-charging-animations) · [volt wallpapers](https://appshunter.io/ios/topics/volt-wallpapers) · [faster charge](https://appshunter.io/ios/topics/faster-charge) · [charge animation](https://appshunter.io/ios/topics/charge-animation) · [charging animation wallpaper](https://appshunter.io/ios/topics/charging-animation-wallpaper) · [charging wallpaper](https://appshunter.io/ios/topics/charging-wallpaper) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*