密九邮箱 vs Art campus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
密九邮箱
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密九邮箱，是一款基于邮件安全的移动客户端，可实现邮件数据在移动端到服务器之间传输、存储过程全方位的安全保护。
Art campus
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大学生更方便的进行艺术讨论，活动参加，作品交易，订单留存，互动交友
Screenshots
Verdict
The clearest difference is update cadence: Art campus at weekly against 密九邮箱's every 5 months. 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.
密九邮箱 ships an update every 5 months, Art campus weekly. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.
| Parameter | 密九邮箱 | Art campus |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 43 MB | 72 MB |
| Age rating | 4+ | 12+ |
| Developer | ShenZhen AoLian Information Security Technology Co.,Ltd. | Shandong Yimei Art Education Information Consulting Co., LTD |
In-app purchases
密九邮箱
No in-app purchases
Art campus
No in-app purchases
