# xDisk-Expand space — Expand space,Back up & Restore

> External storage expansion, file management, and media playback for mobile devices. (iPhone/iPad app by Junjun Fu.)

- Source: https://appshunter.io/ios/app/xdisk-expand-space/id1141319857 (this page in markdown: same URL + `.md`)
- Developer: [Junjun Fu](https://appshunter.io/developer/1137039010)
- Category: Utilities
- Price: Free
- Rating: 1.80/5 from 543 App Store ratings · 50 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 70 MB
- Languages: Basque, Catalan, Czech, Dutch, English, Finnish, French, German, Italian, Japanese and 11 more
- Released: 2017-03-01
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/xdisk-expand-space/id1141319857/reviews.md

## What is xDisk?

*Supported Doc formats:
 Pages,Numbers,Keynote,pdf,doc,docs,xls,xlsx,ppt,pptx,
 rtf,html,psd,xml,json,plist

*Supported Txt Editor formats:
  txt,h,m,c,java

*Supported Image formats:
  jpg,png,bmp,gif,tif,tiff,ico,xbm,cur

*Supported Audio formats:
  mp4,mov,mkv,avi,fly,rm,rmvb,wmv,vob,3gp,m4v,m1v,mp2,
 ts,tp,asf,asx,yuv,webm,qt

Features list:
*Super seed USB3.0 standard
*External memory expansion and file sharing
*Transferring files within multi-platforms 
  PC/Mac/Tables/Phones
*Manage all your data directly on the device(Creat,Copy,
  Move,Delete,Rename,Lock,Unlock,Edit)
*Support up to 128GB external memory card
*Playback video/Music,View picture directly from external 
  memory card.
*Video record,Picture take,Voice record cab be directly 
  stored in external memory card.
*Backup and restore your Contact/Photo in external memory 
  whith on touch.
*Document viewer for all major file formats.
*Vocie records/Text editor.
*Multi-languages supported.

## Key features

- External memory expansion
- File sharing across platforms
- Data management (create, copy, move, delete)
- Backup and restore contacts/photos
- Direct media playback from external storage
- Document viewer for major formats
- Voice recording and text editing

## What do users think of xDisk?

Overall sentiment: negative

**Pros**

- 🚀 Fast file transfer speeds
- 👍 Intuitive user interface (earlier versions)
- 💾 External storage support for photos and files
- 🎯 Dedicated app for SD card reading (original design)
- ✅ Reliable performance before updates

**Cons**

- 🐛 App crashes after iOS updates
- ❌ Integration with Files app broke core functionality
- 📱 Incompatible with iOS 14+ versions
- 🔄 App no longer recognizes external SD cards
- 😞 Abandoned by developers with no fixes
- 🖼️ Cannot access photos after recent updates
- ⚠️ Inconsistent performance across devices (iPhone vs iPad)
- 🚫 No support or communication from developers

**Commonly reported bugs**

- App defaults to Files app viewer instead of xDisk interface
- Memory card reader not recognized after app updates
- App crashes when copying files to photo library
- File corruption after writing to SD card
- App freezes on reading large SD cards
- Photo library only shows 1 photo out of 5000+
- Video files show 0MB size after upload
- App doesn't rotate to landscape mode despite update claims
- Persistent location services permission requests
- File dates changed to current date after transfer
- 500MB file size limitation
- Incompatibility with Suntrsi and Difini adapters after updates
- App won't load card reader on newer iPhone models

**Most requested features**

- Direct transfer from Files app to external drive
- Landscape orientation support for iPad
- File metadata display (dates, dimensions, video length)
- Batch photo transfer with progress tracking
- Background video playback capability
- Automatic subtitle loading for matching files
- Proper file sorting (alphabetical, numerical)
- Support for importing from third-party apps (e.g., Filmic Pro)
- Ability to organize and create folders on SD cards
- File size and folder size information

## Recent user reviews (10 of 50)

All indexed reviews: https://appshunter.io/ios/app/xdisk-expand-space/id1141319857/reviews.md

### 4/5 — Awesome!!!

*2021-11-15, version 4.8.1*

I loved being able to use an external disk for storage.  Then I updated my ipad OS by mistake.  Now it's useless, defaulting to file viewer which can do nothing but look at files. (viewer is kind of a hint.)
Thanks Apple.

### 1/5 — They broke it

*2021-07-01, version 4.8.1*

Originally I praised this app for not relying on the Files app, resulting in an app that was faster than any of the generic OTG adaptors on the market. A year later I've come back to find that the Files app is integrated into it and it no longer works. Can't tell if it's an issue with that app or my adaptor, but I can't even figure out the first thing about how this works now. Should've known better than to trust the devs to not break something that alresdy works.

### 1/5 — Wont work on IOS 14.4.2...

*2021-04-15, version 4.8.1*

Worked great loved this app and easy way to upload pictures and files from my SD card to my phone or Facebook or send them to someone..then updated my iPhone and BOOM it stopped working. The app still prompts to open when you plug in the card reader to the iPhone but the app won’t load card...so it’s pointless

### 1/5 — It was great until y’all 🤬 it up.

*2021-03-28, version 4.8.1*

So I got a Suntrsi adapter for Christmas last year and the app and adapter worked wonderfully! Beautiful app and UI, and speedy transfer. Then I updated my app, and now I can’t even use it. All it does is brings up a Files window that can’t even be used. If I wanted to do that, I would’ve just gotten an OTG adapter. At least I can still use the adapter for the USB part with other computers. I’m very disappointed. If you purchased an adapter that uses this app, and you are going to be using it solely on your iPhone, please return it and search for another product.

### 1/5 — No longer able to upload to iPad from card reader.

*2021-01-10, version 4.8.1*

Hello App Developer: Please release an UPDATE that fixes this issue.

This X-disk app used to work great. Now it will not work from my iPad. It will allow me to access the app, but the app looks totally different. It will not allow uploads from the WingHome card reader. It doesn’t even recognize that a memory card reader is connected. It still works with a few glitches on the iPhone 8, but not on the iPad, and not on the newer iPhones. Please release an update that fixes this issue as its useless for iPad users as well as newer versions of the iPhone.

### 3/5 — App changed

*2020-12-14, version 4.8.1*

I have been using this app and file transfer software for a couple of years now. The interface changed recently and I can no longer access photos on my phone. In other words, the device when plugged in no longer reads photos on my phone. This is a big disappointment since I own two of these X disc plug-ins and bought two more for family members with iPhones.

### 1/5 — The “update” was just to turn into the files app

*2020-12-13, version 4.8.1*

It worked fine before so I went on the app after a while to see my old files and I get and notification saying to update the app for “bug fixes” but after I updated it, it change to the generic files app and my sd card adapter no longer works on it. I can’t see any of my files on the app which was what it was made for and idk what to do. If you get an notification to “update” the app, don’t do it. Just stick to the older version if it’s still usable.

### 1/5 — Go back to version 4.7.7 NOW.

*2020-12-08, version 4.8.1*

You really screwed the pooch on the last “update”. The device is completely useless now. I cannot do anything remotely similar that the original version allowed me to do. The screen shots on iTunes Store don’t even match to the “upgraded and fixed” new version. You went from the best app I have seen for moving files to and from the iPhone to pure crap. Thanks for nothing.

### 1/5 — Buyer Beware

*2020-12-07, version 4.8.1*

If you are thinking about buying the memory stick, make sure to check these reviews for the app needed to make everything work.  I bought the card reader about a year ago and with the app everything was working smooth.  I could back my my iPhone photos and move them and transfer.  

Then an app update happened and now the app is garbage for managing your photos.

### 3/5 — Used to work great

*2020-12-04, version 4.8.1*

I got the accessory and the app about a year ago and it worked great. There must have been an update though because now the app is useless and the SD card does not even show up and the app does not look at all like it used to. The accessory is useless without the app and now I have to buy another one. I really liked this before the most recent update. Also the app no longer looks like the pictures shown here.

## Frequently asked questions about xDisk

### What does xDisk-Expand space do?

This app allows you to expand your device's storage by utilizing external memory cards up to 128GB. It facilitates file management, data backup, and direct media playback from the external storage.

### What file formats are supported?

The app supports a wide array of file formats including documents (PDF, DOCX, XLSX, PPTX), text files (TXT, H, M, C, JAVA), images (JPG, PNG, BMP), and audio/video (MP4, MOV, AVI, WMV).

### How much does xDisk-Expand space cost?

Based on the provided information, the application is available for free. There are no mentions of in-app purchases or subscription fees.

### Can I play videos and music directly from the external memory card?

Yes, you can play video and music files directly from the external memory card. The app also allows you to view pictures stored on the external drive.

### What are the key features for managing data?

Key data management features include the ability to create, copy, move, delete, rename, lock, and unlock files directly on the device. You can also back up and restore contacts and photos with a single touch.

## Version history (last 1 release)

### 4.8.1 — 2020-09-01

-Fix the crash bug
-Fix the bug that cannot copy files

## Apps similar to xDisk

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [iD Disk](https://appshunter.io/ios/app/id-disk/id1185802128) | 1.0 (1) | Free | Utilities |
| [Portable USB · Cloud Ready](https://appshunter.io/ios/app/portable-usb-cloud-ready/id648162472) | 4.2 (59) | Free | Utilities |
| [uDisk](https://appshunter.io/ios/app/udisk/id532963658) | 4.3 (149) | Free | Utilities |
| [iExpand](https://appshunter.io/ios/app/iexpand/id980186958) | 2.4 (31) | Free | Utilities |
| [Lexar Mobile Manager](https://appshunter.io/ios/app/lexar-mobile-manager/id911763397) | 2.0 (302) | Free | Utilities |
| [Vivitar Mobile Reader](https://appshunter.io/ios/app/vivitar-mobile-reader/id1502012385) | 1.7 (826) | Free | Utilities |

## More apps by Junjun Fu

- [My Spaces](https://appshunter.io/ios/app/my-spaces/id1116594355)
- [SmartDisk](https://appshunter.io/ios/app/smartdisk/id1142999492)
- [耳机测试](https://appshunter.io/ios/app/id1208338202)

All apps by Junjun Fu: https://appshunter.io/developer/1137039010

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*