QCheck vs ZZER只二
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QCheck
This app helps businesses identify quantum cloud codes for integrated solutions like anti-counterfeiting and brand promotion. It offers users a convenient, safe, and reassuring consumption experience for verification purposes.
- Identify quantum cloud codes
- Anti-counterfeiting traceability
- Brand promotion solutions
- Secure consumption experience
- Enterprise integrated solutions
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QCheck is an app dedicated to identifying quantum cloud codes, committed to providing enterprises with comprehensive integrated solutions such as anti-counterfeiting traceability, anti counterfeiting, brand promotion, etc., providing users with a convenient, safe, and reassuring consumption experience for verification.
ZZER只二
This platform simplifies the sale of pre-owned luxury items. Browse a wide selection of authenticated bags, jewelry, clothing, and more from top brands. Offers online and in-store consignment with live video explanations for remote shoppers.
- Second-hand luxury goods consignment
- Wide range of categories and brands
- Authenticity guarantee by senior appraisers
- Self-service shopping and payment
- One-stop purchase and consignment
- Live video explanation service
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ZZER was founded in June 2015. It is a second-hand luxury goods consignment platform with the mission of "making second-hand sales simple". Headquartered in Shanghai, it has the ZZER APP and many offline stores. Business introduction: • Many categories, including bags, jewelry, clothing, shoes, accessories, watches, and tens of thousands of second-hand luxury goods. Men and women can pick their favorite products here; • All brands, from Hermes, Chanel, LV, Gucci, Dior, Celine, Goyard to Coach, MCM, Longchamp; • Self-service shopping, ZZER APP self-scan code to check prices and self-pay; • Authenticity guarantee, ZZER is a senior appraiser with China Inspection Qualification, and all products are physically identified; • Support one-stop purchase and consignment, including offline stores Free shipping with SF Express online, the consignment categories accepted include: bags, women's clothing, shoes, accessories, jewelry, watches, etc.; •ZZER Only Two APP launched a live explanation (on-demand) service. Users who cannot come to offline stores can ask the explainer to help them understand the quality and defects of all the consignment products in the store, and they can also try them on and wear them, which is like being there; To learn more about ZZER Only Two, you can use the following methods: Official website: https://www.zzer.com/ WeChat applet: ZZER Only Two Official WeChat public account: ZZER Only Two Official Xiaohongshu: ZZER Only Two
Screenshots
Verdict
The clearest difference is rating: QCheck at 5.0 against ZZER只二's 2.5. ZZER只二's advantage is update cadence (weekly vs every 6 weeks) and ratings volume (17 vs 1). 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.
QCheck holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: ZZER只二 has 17 ratings behind it against 1, so its average is the more settled of the two.
QCheck ships an update every 6 weeks, ZZER只二 weekly. The most recent releases landed on September 11, 2026 and October 6, 2026 respectively.
| Parameter | QCheck | ZZER只二 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.5 (17 ratings) |
| Positive reviews | — | 51.2% of reviews |
| Number of ratings | 1 | 17 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 74 MB |
| Age rating | 17+ | 17+ |
| Developer | Shengzhen Qianhai Quantum Cloud Code Technology Co.,Ltd. | Shanghai Pianxing Network Technology Co., Ltd. |
Customer experience
QCheck
ZZER只二
In-app purchases
QCheck
No in-app purchases
ZZER只二
No in-app purchases









