Comparison

Charging Engine vs Voice Recorder

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

Voice Recorder

Record, edit, and transform audio with a versatile tool. Features include high-quality recording, sound effects, voice changing, and audio manipulation. Premium features offer powerful transcription and text-to-speech capabilities.

Highlights
  • High-quality audio recording
  • No recording time limit
  • Multiple recording formats
  • Background voice recording
  • Audio trimming and cutting
  • Sound effects and voice changer
  • Audio to text transcription
  • Text to audio conversion
Features
Read full description

Welcome to the world of sound and creativity with the app. If you're looking for a versatile and powerful audio recording and editing tool, you've just found it. With a rich set of features that includes recording, sound effects, transcribing audio to text, the app offers everything you need to capture, edit, and transform audio into captivating masterpieces. Voice Recorder: - Record sound in high quality - No recording time limit - Support multiple voice recording formats: AAC, M4A, AMR, MP3 - Voice record in background: record voice when screen is off Cut Audio: - Easily trim and cut audio clips to remove unwanted segments or create shorter, more focused recordings. Perfect for podcasters, musicians, and content creators. Adjust Audio - Split audio - Merge audio - Insert audio - Manage audio files Sound Effects: - Elevate your audio with a variety of sound effects. - Voice changer to other sounds: robot, child, kid, boy, alien... Premium Feature: You will need to pay to use 2 following features: - Audio to Text: Convert spoken words into written text effortlessly. The app features a powerful transcription tool that turns your voice recordings into editable text, making it a valuable resource for journalists, students, and professionals. - Text to Audio: Transform written text into engaging audio. Whether it's an article, essay, or your favorite book, the app can convert text into natural-sounding audio, allowing you to listen on the go. Subscription: - Weekly: 5.99$ - Monthly: 12.99$ - Yearly: 39.99$ The app empowers you to unleash your creativity and capture audio in its purest form. The app is designed for everybody, especially students, journalists and musicians. Never miss important information during a meeting or at the lecture. Thanks for using the app! Privacy policy: http://vtn.global/policy/ Term of Use: http://vtn.global/terms/

Screenshots

Charging Engine4 screens
Voice Recorder4 screens

Verdict

The call

The clearest difference is review sentiment: Charging Engine at 52% against Voice Recorder's 0%. Charging Engine also leads on rating (4.8 vs 2.8) and ads (none vs shown). Voice Recorder's advantage is monetization model (freemium vs subscription) and update cadence (every 2 weeks vs every 6 weeks). On price, 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 10 in-app purchases, starting at $3.99 per 7 days and Voice Recorder sells 4 in-app purchases, starting at $5.99 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 2.8. That said, the two scores are not equally well evidenced: Charging Engine has 11K ratings behind it against 98, 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 0% of Voice Recorder's.

UpkeepUpdate frequency

Charging Engine ships an update every 6 weeks, Voice Recorder every 2 weeks. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

Scorecard7 real differences · 3 level
Charging Engine versus Voice Recorder: the parameters behind the verdict, then further details
ParameterCharging EngineVoice Recorder
PriceFreeFree
Rating4.8 (11K ratings) — better2.8 (98 ratings)
Positive reviews51.6% of reviews — better0.0% of reviews
Number of ratings11K — better98
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size112 MB152 MB
Age rating4+4+
DeveloperBluewolf Technology LimitedVTN GLOBAL LTD

Customer experience

Charging Engine

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

Voice Recorder

All ratings98 ratings
Positive45.9%
Neutral2.0%
Negative52.0%
Written reviews16 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Voice Recorder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Charging Engine

Subscriptions9
  • ChargingEngine Subscription3 Days trial$3.997 Days
  • ChargingEngine Subscription$3.997 Days
  • Weekly subscription7 Days trial$4.997 Days
Show 6 more
  • ChargingEngine Subscription3 Days trial$19.991 Month
  • ChargingEngine Subscription$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
One-time1
  • ChargingEngine lifetime$69.99
4 purchases

Voice Recorder

Subscriptions4
  • Weekly Premium3 Days trial$5.997 Days
  • Monthly Sale Package$11.001 Month
  • Monthly Premium$12.991 Month
Show 1 more
  • Yearly Premium$39.991 Year

Questions

Is Charging Engine free?
Charging Engine is free to download, with in-app purchases available.
Is Voice Recorder free?
Voice Recorder is free to download, with in-app purchases available.
Which has better reviews, Charging Engine or Voice Recorder?
Charging Engine is rated higher. Charging Engine averages 4.8 out of 5 from 11K ratings, while Voice Recorder averages 2.8 from 98 ratings.
Do Charging Engine or Voice Recorder have ads?
Voice Recorder shows ads; Charging Engine does not.
Which is updated more often, Charging Engine or Voice Recorder?
Charging Engine ships an update every 6 weeks, and Voice Recorder every 2 weeks. Most recently, Charging Engine was updated on November 12, 2026 and Voice Recorder on November 4, 2026.

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