U8 vs Backup Disk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U8
Transfer and back up any file wirelessly between your mobile devices and computers without using mobile data. Experience ultra-fast speeds for seamless file management and sharing across different platforms.
- Zero-flow wireless file transfer
- Ultra-fast transmission speeds (up to 30MB/s)
- File backup and management
- Cross-platform compatibility
- Supports various file formats
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Mobile phone USB flash drive-file transfer and backup artifact Zero-flow transmission of any file, does not consume a trillion traffic, does not cost a penny. Mobile phone USB flash drive is a cross-platform, easy to operate, ultra-fast transmission speed of extremely fast file backup tools. You only need to transfer files in the same LAN through a computer browser -Software features- 1 free flow 2 File transfer speed is ultra-fast: kill Bluetooth 100 times, and the fastest speed can reach 30Mb/s. 3 Backup Files: You can browse and manage all formats supported by iOS and photos, videos, music and other files. 4 Cross-platform transmission: iOS mobile phones and other iOS mobile phones, and desktop device platforms, free transmission. 5 Powerful: Transmit photos, videos, music and other files in various formats in the same LAN. The function of mobile phone USB flash drive is small and powerful, which is a rare tool in your daily life. Come and try it quickly! ;
Backup Disk
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Backup Disk is a utility that turns iPhone and iPad into a reliable backup device for your Mac. You can easily back up selected folders on your computer by syncing them with your device wirelessly. The app can detect files that have changed and only sync them, so your periodic backups will run much faster. Copying large numbers of small files between disks has always been problematic. The app's algorithm allows these files to be combined into larger packages and transferred between devices. Thus, it makes much faster and more efficient backups. If the backup process is interrupted for any reason, the next operation can continue from where it left off. SUBSCRIPTION If you choose to purchase Backup Disk PRO by a subscription option, payment will be charged to your iTunes account, and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase. Read more about our terms and conditions here: https://backupdisk.app/privacy.html https://backupdisk.app/terms.html
Screenshots
Verdict
The clearest difference is ads: Backup Disk at none against U8's shown. U8's advantage is update cadence (every 6 weeks vs every 5 months) and iOS requirement (12.0 vs 14.0). On price, 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. U8 sells 1 one-off in-app purchase and Backup Disk sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
U8 ships an update every 6 weeks, Backup Disk every 5 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.
| Parameter | U8 | Backup Disk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (9 ratings) — better | — |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 26 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ErxiangHeyi Information | Muharrem Ozkan |
In-app purchases
U8
- LifeTime$3.99
Backup Disk
- Backup Disk PRO Monthly$2.991 Month
- Backup Disk PRO Annual3 Days trial$9.991 Year
- Backup Disk PRO Lifetime$19.99
