# i vs Kdisk

The clearest difference is rating: i at 2.3 against Kdisk's 1.6. i also leads on ratings volume (789 vs 109). On price, review sentiment, update cadence 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 1.6. That said, the two scores are not equally well evidenced: i has 789 ratings behind it against 109, so its average is the more settled of the two. Written reviews split almost evenly too, at 15% and 15% positive.

i ships an update every 3 months, Kdisk every 2 months. The most recent releases landed on August 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | i | Kdisk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (789 ratings)](https://appshunter.io/ios/app/i-flashdevice/id1100496131/reviews)** | [1.6 (109 ratings)](https://appshunter.io/ios/app/kdisk/id1489952347/reviews) |
| Number of ratings | **789** | 109 |
| Positive reviews | **15.0% of reviews** | 14.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 89 MB | 94 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen 0101 Technology Co.,Ltd](https://appshunter.io/developer/994444596) | [振峰 皮](https://appshunter.io/developer/1479286012) |

## 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


### Kdisk

[App page](https://appshunter.io/ios/app/kdisk/id1489952347)

Manage and access your media and documents stored on an iStorage device. Browse photos, videos, and music with thumbnail views, and perform file operations like copying, deleting, and renaming. It also supports document viewing for various popular formats.

**Highlights:** Media thumbnail display, List/thumbnail view, File sharing, Copy, cut, delete, rename files, Local/iStorage data transfer, Slideshow mode for photos, Music playback with artwork

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works on iPhone and computer
- 👍 Works for some users
- 👍 Flawless operation for some users
- 👍 Happy with results for some users

**What reviewers complain about**

- ❌ Does not work with iPhone 15
- ❌ Does not work with iPhone 16 Pro
- ❌ Does not work with iOS 17.2
- ❌ App doesn't recognize card reader
- ❌ Cannot open images/videos

**Reported bugs**

- App doesn't recognize the card reader
- Cannot open images/videos
- Limited file access (only recent 499 photos)
- No pictures show up on the card
- App crashes frequently

**Requested features**

- Fix the issue with dropping connection
- Resolve compatibility issues with newer iPhones (15, 16 Pro)
- Address iOS 17.2 compatibility
- Improve file access limitations
- Ensure accurate deletion of pictures


## Frequently asked questions

### Is i free?

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

### Is Kdisk free?

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

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

i is rated higher. i averages 2.3 out of 5 from 789 ratings, while Kdisk averages 1.6 from 109 ratings.

### Do i or Kdisk have ads?

Neither i nor Kdisk shows ads.

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

i ships an update every 3 months, and Kdisk every 2 months. Most recently, i was updated on August 24, 2026 and Kdisk on September 20, 2026.

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