UStorage vs 存丫
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UStorage
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“UStorage” is an application software for UStorage device. •The main interface displays Media thumbnails :video, photo, music • Supports list / thumbnail view, support sharing operation for photos, music and documents • Support copy/cut/delete/create/rename operation and support local/iStorage data transmission in /between • Support to play the photos by slideshow mode • Support music artwork shows, repeat mode setting, time line drag operation • Document: Support formats of .keynote、.numbers、.page、.xls/.xlsx, .doc/docx、pdf、txt、ppt/pptx
存丫
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存丫是配合智能闪存使用的存储工具软件 SkyBox是一款由甚湖科技开发的，业界独有的wifi pssd（便携式无线固态硬盘）。借助SkyBox，每个人都能轻松的掌控自己的各种数据。 形影相随 SKYBOX的尺寸仅有14.2×7×1.8cm，重量仅有220g。和最新的iPhone 16 ProMax相比，重量一样，尺寸上还要小一圈，让你能够在出行时轻松携带，常伴左右。 真“无线” SKYBOX自带供电和wifi 6模组，彻底抛弃连接传统PSSD的有线模式，让手机、电脑与SkyBox的连接更加方便快捷、随心所欲。与手机、电脑快速建立连接，传输速度高达80MB/s。备份手机相册（按10000张照片，每张10M计算），仅需半小时，且不占用手机流量。 手机瘦身 SkyBox可以通过无线，自动备份手机相册中的照片视频。通过反向检索已备份文件，完成一键删除，达到手机瘦身的目的。对iphone，SkyBox不仅备份和快速清理手机本地相册，还可通过云同步，备份和清理icloud中的照片和视频。 保险箱 关于个人隐私/重要数据，SKYBOX还具有保险箱功能，给你双重安全保障，保险箱可创建多个，并可设置不同密码，输入相应密码，即可进入对应保险箱查看其中数据；
Screenshots
Verdict
The clearest difference is iOS requirement: UStorage at 8.0 against 存丫's 13.0. On price, update cadence, ads and in-app purchases 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.
UStorage ships an update monthly, 存丫 every 3 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.
| Parameter | UStorage | 存丫 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 135 MB | 196 MB |
| Age rating | 4+ | 4+ |
| Developer | 汉福 陈 | 亿次网联(杭州)科技有限公司 |
In-app purchases
UStorage
No in-app purchases
存丫
No in-app purchases
