i vs U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
Easily manage files on a USB drive connected via a wired connection. Back up and restore photos and contacts directly to and from the USB drive without needing a network connection.
- Connect to USB drive
- File management
- Photo album backup
- Photo album restore
- Contact backup
- Contact restore
- Offline backup
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This APP can connect to a USB drive via a wired connection and manage the files on it. You can back up photo album files to the USB drive and restore them to the photo album, or back up contacts to the USB drive and restore them. Backup can be done without network access;
U
Expand your iOS device's storage with this portable flash drive. Seamlessly transfer, view, and manage files between your iPhone/iPad and Mac/PC without needing Wi-Fi or a network signal. Features include file encryption and contact backup.
- Memory expansion for iOS devices
- Two-way storage transfer (iOS to Mac/PC)
- No Wi-Fi or network signal required
- Transfer, view, and share files
- File encryption
- Contacts backup and restore
- Video streaming via Airplay
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The U-Disk is the ultimate solution for memory expansion on iOS device. It's provides two-way storage between iOS and MAC/PC without Wi-Fi, network signal or battery power. Compatible with virtually all devices featuring a Lightning connector, this ultra-slim and fast flash drive enables users to seamlessly transfer, view and share documents, images, video and audio files between a multitude of gadgets. Organize, edit and manage files across multiple platforms, including iPad, iPhone and more. Play music and videos directly from the freeing up space on your devices. Other features include file encryption, contacts backup-restore, and video streaming via Airplay, Whether traveling by airplane for a business trip, stuck in a remote location without reception, or wanting to share photos and videos of a recent vacation, U-Disk fits perfectly into any lifestyle.
Screenshots
Verdict
i and U both sit at 2.1 stars, but that hides the real split: 29% of U's written reviews are positive against 10% of i's. i's advantage is update cadence (monthly vs every 3 months) and ratings volume (419 vs 17). On price, rating, 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.
U holds the better App Store score, 2.3 against 2.1. That said, the two scores are not equally well evidenced: i has 419 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 10% of i's written reviews are positive against 29% of U's.
i ships an update monthly, U every 3 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.
| Parameter | i | U |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (419 ratings) | 2.3 (17 ratings) — better |
| Positive reviews | 9.7% of reviews | 29.4% of reviews — better |
| Number of ratings | 419 — better | 17 |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 74 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen 0101 technology Co.,Ltd | 岚 丁 |
Customer experience
i
U
Bugs and requests
i
Reported bugs
3 issues- Device not recognized or shown as offline
- Corrupted or lost files during transfer
- Compatibility issues with newer iOS versions
Requested features
3 requests- Ability to create folders and organize files
- Support for more file types beyond photos/videos
- Improved stability and reliability
U
Not enough reviews yet to summarise bugs or requests.
In-app purchases
i
No in-app purchases
U
No in-app purchases
