I vs Backup Disk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
I
Manage all your files on iOS devices with ease. This app allows you to exchange files between different devices and platforms, back up contacts and camera roll, and play media directly from your device. It supports a wide range of document, image, audio, and video file formats.
- File management for iOS devices
- Cross-device file exchange
- Contact and camera roll backup
- Video and music playback
- Image and document preview
- Support for various file formats
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The I-USBKey Pro is the best way to manage all your files on iOS devices,Exchanges files with different devices & platforms with ease. 1.Backup Contacts and Camera Roll. 2.Play Videos,Musics. 3.Preview Images,World. Supported File Formats: Document:DOC,XLS,PPT,TXT,else; Image:JPG,JPEG,BMP,GIF,else; Audio:MP3,AAC,AIF,else; Video:MP4,MOV,MKV,AVI,FLV,RMVB,ELSE;
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 in-app purchases: I at none against Backup Disk's 3. I also leads on update cadence (every 9 days vs every 5 months) and iOS requirement (8.0 vs 14.0). On price, ads 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. Backup Disk sells 3 in-app purchases, starting at $2.99 per month. I asks for nothing beyond the download.
I ships an update every 9 days, Backup Disk every 5 months. The most recent releases landed on September 17, 2026 and October 3, 2026 respectively.
| Parameter | I | Backup Disk |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 9 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 40 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | zhong qibiao | Muharrem Ozkan |
In-app purchases
I
No in-app purchases
Backup Disk
- Backup Disk PRO Monthly$2.991 Month
- Backup Disk PRO Annual3 Days trial$9.991 Year
- Backup Disk PRO Lifetime$19.99
