UBackup vs mFlash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UBackup
Securely back up your photo albums and contacts without worrying about storage limits or cloud privacy. This app uses an Apple USB drive for reliable data protection, preventing data loss.
- Backup photo albums
- Backup contacts
- No iCloud storage limits
- Enhanced privacy and security
- Uses Apple USB drive
- Prevent data loss
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UBackup is a powerful application that can help you back up your precious photo albums and contacts at any time. Compared with the space limit of iCloud, UBackup does not require you to worry about insufficient storage space. At the same time, you do not need to worry about privacy and security issues after uploading to the cloud. You only need an Apple USB drive to get rid of the worry of data loss.
mFlash
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OTG 传输助手是专为 iPhone 打造的外接存储文件管理工具,通过 Lightning/Type-C 转 USB 转接设备连接 U 盘、移动硬盘、读卡器,摆脱电脑束缚,实现手机与外置存储之间高速自由拷贝文件,随时随地备份、转移手机数据。 核心功能 OTG 高速传输 插上转接 U 盘即可自动识别,支持文件复制、剪切、粘贴、删除、重命名,单文件 / 批量文件一键迁移,照片、视频、录音、Word、Excel、PDF、压缩包等全格式兼容。 手机 ↔ U 盘双向互传 手机导出:相册图片、录像、聊天文件、下载资料一键批量拷贝到 U 盘,腾出手机内存; U 盘导入:U 盘中资料直接读取保存至手机,外出办公、拷贝资料无需携带电脑。 内置文件管理器 内置分类视图:图片、视频、文档、音频、压缩包分门别类,支持文件夹新建、排序、搜索,快速查找目标文件,管理 U 盘内部目录更清晰。 离线备份神器 重要工作报表、家庭相册、珍贵视频离线备份至 U 盘,不占用云端流量,无需网络,杜绝云端隐私泄露,数据留存更安全。 多存储兼容 兼容普通 U 盘、固态移动硬盘、TF/SD 读卡器、相机存储卡,适配大部分外接 USB 存储设备,外出拷贝资料、相机导图十分便捷。
Screenshots
Verdict
The clearest difference is update cadence: mFlash at weekly against UBackup's every 4 weeks. UBackup's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, 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.
UBackup ships an update every 4 weeks, mFlash weekly. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.
| Parameter | UBackup | mFlash |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (81 ratings) — better | — |
| Positive reviews | 9.3% of reviews | — |
| Number of ratings | 81 — better | — |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 105 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Dianzhui Culture Technology Co., Ltd. | Huizhou Yayu Technology Service Co., Ltd. |
Bugs and requests
UBackup
Reported bugs
40 issues- App does not save videos that play
- Cannot clear cache
- App continues to fill up
- Drive not recognized on any device
- Lost photos/cannot retrieve
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- Latest update caused malfunction
- Drive not recognized on iPhone
- Zero space/won't load
- Cannot save or open files on another device
- Never worked
- Allows backup of only one at a time
- Not recognizing USB stick
- Cannot get it to work
- Files not visible on USB
- Videos uploaded do not play from USB
- App gives scam/hacker vibes
- Deleted everything from phone without permission
- Cannot connect to seller/support
- Flash drive suddenly stopped working
- Pop-up error in Chinese
- Cannot access files
- Cannot backup Apple Live Photos
- Only saves JPEGs, not file types
- Scam text received after allowing app access
- Misleading product description
- Cannot get video from PS4 to iPhone
- Only saved a fraction of photos
- Keeps telling user to insert USB drive
- Does not work reliably
- Backs up only one-third of data
- Files corrupted when transferring to Mac/PC
- Struggling to delete old images
- Cannot delete images efficiently
- Cannot make playlists for music
- Cannot be used repeatedly
- Won't load partitioned large video files
- Backup deletes photos from iCloud
- Shows used space with no photos
- USB disc not connected error
- Support link goes nowhere
Requested features
4 requests- Ability to rename files in-app
- Ability to back up to specific folders
- Improved media player/playlist functionality
- Fix for live photo backup
mFlash
Not enough reviews yet to summarise bugs or requests.
In-app purchases
UBackup
No in-app purchases
mFlash
No in-app purchases









