QPP vs ZDiiin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QPP
This app offers a secure and convenient way to manage digital items and create digital member cards. Easily transfer items to friends and build a social circle with quick registration.
- Create and transfer digital items
- Secure item transfer
- Quick registration via phone number
- Import contacts easily
- Build social circles
- Digital backpack management
- Create digital member cards
Read full descriptionHide full description
**QPP The Digital Backpack** QPP can bring users the most convenient experience, while keeping the digital item services safe for sellers. 【QPP Features】 ● Create your own QPP item easily, transfer it to your friend via phone number, and worry no more about counterfeiting, complex process, or identification problem. ● Enter phone number for a quick registration, import contacts with one tap, and build your own QPP social circle. ● Say goodbye to identification or entrypass with our powerful digital backpack management system, you can create a member card and use it on your smartphone easily.
ZDiiin
Read full descriptionHide full description
1. Remote real-time images, allowing you to easily preview. 2. Alarm push broadcast, let you master instant information. 3. You can play back and watch images anytime and anywhere. 4. Support image capture, video backup. 5. Multiple devices can be added at the same time for easy management.
Screenshots
Verdict
The clearest difference is in-app purchases: ZDiiin at none against QPP's 4. ZDiiin also leads on iOS requirement (9.0 vs 13.0). QPP's advantage is update cadence (monthly vs every 17 months). On price, ads 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. QPP sells 4 one-off in-app purchases. ZDiiin asks for nothing beyond the download.
QPP ships an update monthly, ZDiiin every 17 months. Both last shipped on November 3, 2026.
| Parameter | QPP | ZDiiin |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 44.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 17 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | HOLY BUSINESS CO., LTD | Chun Jung Ho |
In-app purchases
QPP
- Basic Transfer Pack$0.99
- Silver Package$4.99
- Gold Package$24.99
Show 1 moreShow fewer
- Platinum Package$48.99
ZDiiin
No in-app purchases
