Comparison

Charging Engine vs AppLock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Charging Engine

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
Read full description

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

About

AppLock

Secure your apps, photos, and notes with advanced locking mechanisms. Block distractions, customize themes, and catch intruders to protect your personal data and enhance productivity.

Highlights
  • Lock all apps
  • Distraction blocking
  • Scheduled blocking
  • Customizable themes
  • Intruder selfie
  • Private web browser
  • Hide photos, contacts, notes
Features
Read full description

Welcome to AppLock, your ultimate solution for app security and privacy protection. Crafted with robust features, AppLock ensures the security of your applications, photos, and personal notes with advanced locking mechanisms. Effortlessly safeguard your personal information and enhance productivity by easily securing apps to deter unauthorized access, thus safeguarding your personal information. With AppLock, you can confidently secure your apps and protect your personal data from prying eyes, ensuring comprehensive personal data protection and digital life protection. Create a healthier lifestyle by utilizing AppLock to block distractions and tailor a suitable schedule. Dive into a variety of lock screen themes and enjoy private browsing for added confidentiality. Rest assured, AppLock prioritizes app security and personal data protection, providing you with peace of mind in an increasingly interconnected world. Key Features: - Lock All Apps: Secure your entire collection of apps with a single password, ensuring app security and privacy protection. - Distraction Block: Quickly regain focus by effortlessly blocking distractions with just a tap, enhancing productivity and privacy. - Scheduled Blocking: Customize app usage schedules to maximize productivity and ensure app security. - Personalized Theme Customization: Customize your lock screen with themes to reflect your style and preferences, enhancing personalization, and app security. - Intruder Selfie: Catch unauthorized access attempts with a snapshot, enhancing app security and privacy protection. - Private Web Browser: Browse the web securely without leaving any traces, ensuring privacy, and app security, including secure browsing. - Hide Photos, Contacts & Notes: Keep sensitive information hidden from prying eyes, enhancing personal data protection and privacy. - Cleaner: Optimize device performance by scanning for duplicate files, ensuring smooth operation, and enhancing app security. - Password Manager: Securely store and manage passwords, ensuring app security, including data encryption, and personal data protection. - Enhance App Security & Improve Privacy Protection: AppLock continuously works to enhance app security and improve privacy protection, providing you with cutting-edge solutions to safeguard your digital life. In today's digital life, ensuring the security and privacy of sensitive applications is paramount. Trust AppLock for a reliable and intuitive solution to protect your digital life. Upgrade to AppLock Premium Protection today and experience the peace of mind that comes with enjoying premium protection features, ensuring the security of your digital life. About Permissions: Rest assured, AppLock only requests necessary permissions to ensure optimal service without compromising your privacy. Information about the auto-renewal of subscription: - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the period. - If you want to continue the service, your subscription should be continued. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - The account will be charged for renewal within 24-hours prior to the end of the current period. The following subscription plans are available (price may vary depending on location): – 1-week subscription – US$ 4.99 – 1-month subscription – US$ 9.99 – 1-year subscription – US$ 29.99 - You can cancel your subscription via this URL: https://support.apple.com/en-us/HT202039 Privacy Policy: https://cemsoftwareltd.com/privacyPolicy.html Terms of Use: https://cemsoftwareltd.com/term.html Support: https://cemsoftwareltd.com/contact.html

Screenshots

Charging Engine4 screens
AppLock4 screens

Verdict

The call

The clearest difference is monetization model: AppLock at free with in-app purchases against Charging Engine's subscription. Charging Engine's advantage is ads (none vs shown) and review sentiment (52% vs 21%). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Charging Engine sells 12 in-app purchases, starting at $3.99 per 7 days and AppLock sells 7 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Charging Engine holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Charging Engine has 11K ratings behind it against 1.4K, so its average is the more settled of the two. Written reviews point the same way: 52% of Charging Engine's written reviews are positive against 21% of AppLock's.

UpkeepUpdate frequency

Charging Engine ships an update every 6 weeks, AppLock every 3 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Charging Engine versus AppLock: the parameters behind the verdict, then further details
ParameterCharging EngineAppLock
PriceFreeFree
Rating4.8 (11K ratings) — better4.5 (1.4K ratings)
Positive reviews51.6% of reviews — better21.4% of reviews
Number of ratings11K — better1.4K
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size112 MB264 MB
Age rating4+17+
DeveloperBluewolf Technology LimitedCEM SOFTWARE LTD

Customer experience

Charging Engine

All ratings10,572 ratings
Positive94.1%
Neutral2.0%
Negative3.9%
Written reviews225 reviews
Positive51.6%
Neutral6.7%
Negative41.8%

AppLock

All ratings1,417 ratings
Positive86.1%
Neutral4.0%
Negative9.9%
Written reviews42 reviews
Positive21.4%
Neutral9.5%
Negative69.0%

User reviews

Charging Engine

From 11K App Store ratings

What we love

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

Room to improve

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

AppLock

From 1.4K App Store ratings

What we love

  • 🔒 Safe and secure
  • 🔒 Private browsing and app locking
  • 👍 Easy to use

Room to improve

  • 🐛 Difficult to follow instructions
  • 🐛 App doesn't work as expected
  • 💰 Requires payment to unlock full functionality

Bugs and requests

Charging Engine

Reported bugs

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

Requested features

4 requests
  • 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

AppLock

Reported bugs

2 issues
  • App doesn't lock all apps as promised
  • App caused loss of contacts

Requested features

2 requests
  • Make the app free to use
  • Improve instructions and user interface

In-app purchases

12 purchases

Charging Engine

Subscriptions11
  • ChargingEngine Subscription3 Days trial$3.997 Days
  • ChargingEngine Subscription$3.997 Days
  • Weekly subscription7 Days trial$4.997 Days
Show 8 more
  • ChargingEngine Subscription3 Days trial$19.991 Month
  • ChargingEngine Subscription$19.991 Month
  • ChargingEngine Subscription1 Month trial$19.991 Month
  • ChargingEngine Subscription3 Days trial$23.991 Month
  • ChargingEngine Subscription$23.991 Month
  • ChargingEngine Subscription3 Days trial$69.991 Year
  • ChargingEngine Subscription$69.991 Year
  • ChargingEngine Subscription1 Year trial$69.991 Year
One-time1
  • ChargingEngine lifetime$69.99
7 purchases

AppLock

Subscriptions7
  • AppLock Premium3 Days trial$4.997 Days
  • AppLock Premium$4.997 Days
  • Lock Apps Premium1 Month trial$9.991 Month
Show 4 more
  • AppLock - Lock Premium$9.991 Month
  • AppLock Yearly Subscription1 Year trial$29.991 Year
  • Sale Off1 Year trial$29.991 Year
  • App Lock Yearly Discount1 Year trial$79.991 Year

Questions

Is Charging Engine free?
Charging Engine is free to download, with in-app purchases available.
Is AppLock free?
AppLock is free to download, with in-app purchases available.
Which has better reviews, Charging Engine or AppLock?
Charging Engine is rated higher. Charging Engine averages 4.8 out of 5 from 11K ratings, while AppLock averages 4.5 from 1.4K ratings.
Do Charging Engine or AppLock have ads?
AppLock shows ads; Charging Engine does not.
Which is updated more often, Charging Engine or AppLock?
Charging Engine ships an update every 6 weeks, and AppLock every 3 weeks. Most recently, Charging Engine was updated on September 23, 2026 and AppLock on September 22, 2026.

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