OTG Flash Pro vs O2G.SSD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTG Flash Pro
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OTG Flash Pro helps you easily manage files on your USB drive, classify and view files, and backup and restore photo albums and contacts for you.
O2G.SSD
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O2G.SSD 是一款面向移动终端的文件迁移备份工具。 软件核心功能：读取手机本地存储内的照片、图片、文档等各类文件，支持将选中的资料直接拷贝、转移至外接硬件存储设备，实现移动端数据向外置设备快速导出。 【主要功能】 文件浏览：自动识别手机相册照片、各类文档素材，支持预览、多选管理； 跨设备传输：建立手机与外接存储设备通信通道，完成文件拷贝、迁移； 资料备份：将手机珍贵照片、工作文档导出至外接设备进行离线保存，避免数据丢失； 文件管理：支持查看文件大小、格式，筛选图片与文档，按需选择传输内容。 适用场景：旅行照片离线备份、办公文档转移、手机空间清理、重要资料异地留存。 我们高度重视您的数据隐私：所有文件传输在本地设备之间完成，不会强制上传您的私人照片、文档至云端服务器，充分保护用户个人信息与文件安全。
Screenshots
Verdict
The clearest difference is device support: OTG Flash Pro at 3 against O2G.SSD's 1. OTG Flash Pro also leads on iOS requirement (14.0 vs 16.0). 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.
OTG Flash Pro ships an update every 10 days, O2G.SSD every 2 weeks. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.
| Parameter | OTG Flash Pro | O2G.SSD |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 136 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 裕雨 程 | Huizhou Yayu Technology Service Co., Ltd. |
In-app purchases
OTG Flash Pro
No in-app purchases
O2G.SSD
No in-app purchases
