이지온메일 vs 완충e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
이지온메일
Send real letters from your phone! Write a message and attach photos, and this service will mail a physical letter via the post office. It offers various themed cards for occasions like birthdays and holidays.
- Send physical letters via app
- Same-day post office submission
- Attach photos to letters
- Themed cards available
- Christmas, New Year, Birthday cards
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앱으로 보내는 실제 편지! 앱으로 편지를 쓰시면 우체국을 통해 실물 편지가 발송 됩니다. 편지는 쓰는 즉시 바로 당일날 우체국으로 접수 됩니다 편지에 사진도 함께 보내실 수 있고, 크리스마스카드, 새해카드, 생일축하 카드도 있어요 (이벤트 카드 다량 보유!) 우체국은 이지온메일이 갑니다
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.
Screenshots
Verdict
The clearest difference is review sentiment: 이지온메일 at 92% against 완충e's 13%. 이지온메일 also leads on rating (4.8 vs 1.0) and ratings volume (12 vs 2). 완충e's advantage is update cadence (every 5 days vs every 3 months). On price, ads, in-app purchases and monetization model 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.
이지온메일 holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: 이지온메일 has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 92% of 이지온메일's written reviews are positive against 13% of 완충e's.
이지온메일 ships an update every 3 months, 완충e every 5 days. The most recent releases landed on July 5, 2026 and September 26, 2026 respectively.
| Parameter | 이지온메일 | 완충e |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (12 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 91.8% of reviews — better | 13.0% of reviews |
| Number of ratings | 12 — better | 2 |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 45 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | myunghee choi | 에브리포터블(주) |
Customer experience
이지온메일
완충e
Bugs and requests
이지온메일
Not enough reviews yet to summarise bugs or 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
In-app purchases
이지온메일
No in-app purchases
완충e
No in-app purchases
