M멤버십 vs OZ viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
M멤버십
This app allows members to authenticate themselves via smartphone, enabling use of unmanned kiosks. It functions as a mobile membership card for point card discounts and accrual, with enhanced security to prevent unauthorized sharing or theft.
- Smartphone authentication
- Unmanned kiosk compatibility
- Mobile membership card
- Point card discounts and accrual
- Enhanced security for mobile barcodes
- Theft prevention
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본 시스템은 회원이 스마트폰을 통해 본인인증을 받을 수 있는 프로그램으로, 무인 키오스크까지 두루 사용할 수 있습니다. 특히 포인트카드의 할인, 적립기능 등을 모바일 회원증으로 사용 가능하며, 모바일 바코드는 복사, 캡처 등을 통해서는 사용할 수 없도록 보안을 강화하여 개발하여 양도하거나 도난피해가 없도록 하였습니다.
OZ viewer
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OZ Viewer supports preview function optimized for mobile environments, making it more convenient to check your work. Working with the PCOZ Viewer ■ You can check the works registered in the PCOZ Viewer in real-time on your mobile. ■ Compare manuscripts and publication versions to identify corrections and improvements immediately. real-time communication ■ You can exchange feedback and opinions for each work through the comment function. ■ You can share your work anytime, anywhere and collaborate with your team members. Key Features ■ Mobile Preview: High-resolution images can also be seen clearly on your mobile screen. ■ Comparison of works: Get a quick look at the differences between manuscripts and publications. ■ Comment: Quickly exchange views on the progress of your work. Get a solution designed to increase work efficiency with OZ Viewer and communicate and collaborate with your work anytime, anywhere.
Screenshots
Verdict
The clearest difference is update cadence: OZ viewer at every 2 days against M멤버십's every 3 months. M멤버십's advantage is iOS requirement (10.0 vs 13.4). On price, ads, 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.
M멤버십 ships an update every 3 months, OZ viewer every 2 days. The most recent releases landed on September 21, 2026 and October 11, 2026 respectively.
| Parameter | M멤버십 | OZ viewer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 21.4% of reviews | — |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 1 MB | 12 MB |
| Age rating | 4+ | 12+ |
| Developer | Kyung Yul Kim | YLAB Earth |
In-app purchases
M멤버십
No in-app purchases
OZ viewer
No in-app purchases
