Charging Engine vs Voice Recorder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Futuristic charging animations
- High-definition dynamic screensavers
- Dozens of 3D charging wallpapers
- Live wallpaper collections
- Battery performance monitor
- Regular content updates
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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
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Charging Engine | Voice Recorder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (11K ratings) — better | 2.8 (98 ratings) |
| Positive reviews | 51.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 11K — better | 98 |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 112 MB | 152 MB |
| Age rating | 4+ | 4+ |
| Developer | Bluewolf Technology Limited | VTN GLOBAL LTD |
Customer experience
Charging Engine
Voice Recorder
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
Charging Engine
- ChargingEngine Subscription3 Days trial$3.997 Days
- ChargingEngine Subscription$3.997 Days
- Weekly subscription7 Days trial$4.997 Days
Show 6 moreShow fewer
- 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
- ChargingEngine lifetime$69.99
Voice Recorder
- Weekly Premium3 Days trial$5.997 Days
- Monthly Sale Package$11.001 Month
- Monthly Premium$12.991 Month
Show 1 moreShow fewer
- Yearly Premium$39.991 Year
Questions
Is Charging Engine free?
Is Voice Recorder free?
Which has better reviews, Charging Engine or Voice Recorder?
Do Charging Engine or Voice Recorder have ads?
Which is updated more often, Charging Engine or Voice Recorder?
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