완충e vs WorldClass PC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
완충e
This service allows users to easily rent and return portable chargers via QR code. Simply rent when needed, and return the charger after use without needing the app for the return process.
- QR code rental
- Easy return
- On-demand battery charging
- Convenient service
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QR코드로 쉽게 대여하고 간편하게 반납하는 보조배터리 대여 서비스. '완충이'는 여러분이 원할때 언제 어디서든 빠르게 배터리를 대여 할 수 있고 충전 후 APP을 사용하지 않고 그냥 반납만 해주시면 됩니다.
WorldClass PC
Easily manage your PC cafe experience with features like quick sign-up, QR code login, and in-app payments from your seat. Monitor usage and end your session remotely for ultimate convenience.
- Easy sign-up and login
- QR code seat login
- In-seat payment
- Auto-purchase options
- Remote session ending
- Usage information check
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WorldClass — One account for every partner esports cafe 【Sign up once, log in anywhere】 Register a single time and log in directly at any WorldClass partner location. No need to create a new membership or re-enter your details at each store. 【Scan and go】 Scan the QR code when you arrive to log in instantly, and skip the wait at the counter. 【Coupon management】 Check your coupons in the app, including where they can be used and when they expire. 【Your usage at a glance】 Review your payment history and session times, all in one place. Sign up for WorldClass and make every visit easier.
Screenshots
Verdict
The clearest difference is review sentiment: WorldClass PC at 63% against 완충e's 13%. WorldClass PC also leads on rating (4.2 vs 1.0) and ratings volume (6 vs 2). 완충e's advantage is ads (none vs shown) and update cadence (every 5 days vs fortnightly). 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. Neither carries in-app purchases, so what you see is what you pay.
WorldClass PC holds the better App Store score, 4.2 against 1.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 13% of 완충e's written reviews are positive against 63% of WorldClass PC's.
완충e ships an update every 5 days, WorldClass PC fortnightly. Both last shipped on September 22, 2026.
| Parameter | 완충e | WorldClass PC |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.2 (6 ratings) — better |
| Positive reviews | 13.0% of reviews | 62.7% of reviews — better |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 5 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 63 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | 에브리포터블(주) | Bigpicture Interactive Co.,Ltd. |
Customer experience
완충e
WorldClass PC
Bugs and requests
완충e
Reported bugs
8 issues- Login authentication failures (Kakao, Naver)
- Payment gateway errors (card registration, payment failure)
- Batteries not charging or showing as charging when they are not
- Return process not registering, leading to extra charges
- App crashes or errors preventing usage
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- Authentication code timeout issues
- Inaccurate billing or unexpected charges
- Spam calls originating from app usage
Requested features
10 requests- Improve login system stability
- Fix payment processing errors
- Ensure battery quality before rental
- Provide clearer return instructions/confirmation
- Improve customer service availability and responsiveness
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- Offer better pricing or clearer fee structures
- Allow registration of check cards
- Display battery charge level before rental
- Allow in-app reporting of faulty batteries
- Simplify the app onboarding process
WorldClass PC
Not enough reviews yet to summarise bugs or requests.
In-app purchases
완충e
No in-app purchases
WorldClass PC
No in-app purchases
