# i vs Y

The clearest difference is update cadence: Y at every 3 weeks against i's every 3 months. i's advantage is rating (2.3 vs 2.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

i holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 789 and 1.7K respectively. Written reviews point the same way: 15% of i's written reviews are positive against 9% of Y's.

i ships an update every 3 months, Y every 3 weeks. The most recent releases landed on August 24, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | i | Y |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (789 ratings)](https://appshunter.io/ios/app/i-flashdevice/id1100496131/reviews)** | [2.0 (1.7K ratings)](https://appshunter.io/ios/app/y-disk/id1181458364/reviews) |
| Number of ratings | 789 | **1.7K** |
| Positive reviews | **15.0% of reviews** | 9.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 89 MB | 29 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen 0101 Technology Co.,Ltd](https://appshunter.io/developer/994444596) | [Shenzhen Dianzhui Culture Technology Co., Ltd.](https://appshunter.io/developer/1529082388) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-flashdevice/id1100496131)

Easily manage all your files on iOS devices. Transfer documents, photos, music, and videos between different devices and platforms. Offers backup for contacts and camera roll, and supports a wide range of file formats.

**Highlights:** File management for iOS, Cross-platform file exchange, Backup contacts and camera roll, Play videos and music, Preview images, Supports wide file formats

**In-app purchases:** none

**What reviewers like**

- ⭐ Cool app
- 🚀 Able to transfer files directly
- 📸 Can take photos/videos within the app
- 🗄️ Useful for backing up files

**What reviewers complain about**

- 🐛 Crashes frequently
- ⚠️ Doesn't work with newer devices/iOS versions
- 🤖 Poor software quality and buggy
- 🔌 Drains device battery quickly
- 📂 Issues with file management and deletion

**Reported bugs**

- App crashes on launch
- Unable to connect to device
- Corrupted files after transfer
- Inconsistent behavior when viewing media

**Requested features**

- Add support for more file types
- Improve video playback functionality
- Provide better instructions and troubleshooting
- Optimize app for latest iOS versions


### Y

[App page](https://appshunter.io/ios/app/y-disk/id1181458364)

Manage files on a USB drive directly from your iPhone. Back up photos and contacts, save media taken on your phone to the USB, and play content from the drive on your device. Expand your iPhone's storage capacity easily.

**Highlights:** USB disk management for iPhone, Back up photos and contacts, Save photos/videos directly to USB, Play media from USB on iPhone, View classified folders, File management and search

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Easy to use
- 💡 Useful for backing up photos and videos

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🔌 Unreliable USB connection
- 📂 Issues with file management and organization
- 🔍 Lack of visibility for file names and metadata

**Reported bugs**

- App not recognizing USB drive
- Corrupted or missing files after transfer
- Incorrect date/time stamps on transferred files

**Requested features**

- Add option to select multiple files at once
- Improve video playback functionality
- Provide better support for file formats and codecs
- Allow customization of file/folder structure


## Frequently asked questions

### Is i free?

i is free to download, with no in-app purchases.

### Is Y free?

Y is free to download, with no in-app purchases.

### Which has better reviews, i or Y?

i is rated higher. i averages 2.3 out of 5 from 789 ratings, while Y averages 2.0 from 1.7K ratings.

### Do i or Y have ads?

Neither i nor Y shows ads.

### Which is updated more often, i or Y?

i ships an update every 3 months, and Y every 3 weeks. Most recently, i was updated on August 24, 2026 and Y on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*