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Best External Storage Apps

228+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our external storage list covers 228+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for External Storage

File Manager & Browser#1

File Manager & Browser by TapMedia Ltd

Manage Files & Documents
Editor's Choice
🔧 Utilities
4.5😐(51K ratings)
FreeAdsIn-App Purchases
File Manager & Browser screenshot 1
File Manager & Browser screenshot 2
File Manager & Browser screenshot 3
File Manager & Browser screenshot 4
File Manager & Browser screenshot 5

This app acts as a virtual USB drive and file manager for your iPhone and iPad. It allows you to easily view, organize, and share various document types, including Office and iWorks files, as well as media. It also offers cloud integration and secure file protection.

What We Love

  • 👍 Compatible with older devices
  • 🚀 Great file organization
  • 📁 Useful for storing and managing files
  • 🔒 Secure file storage

Room to Improve

  • 🐛 Bugs not fixed
  • 🐛 Issues with file management features
  • 🔍 Difficulty finding/accessing files
Backup Drive & SAN#3

Backup Drive & SAN by Le Hoang Tran

Memory Zone - SanDisk Drive
Worth Considering
🔧 Utilities
4.5(205 ratings)
FreeAdsIn-App Purchases
Backup Drive & SAN screenshot 1
Backup Drive & SAN screenshot 2
Backup Drive & SAN screenshot 3
Backup Drive & SAN screenshot 4
Backup Drive & SAN screenshot 5
Backup Drive & SAN screenshot 6

Easily transfer, back up, and manage your photos, videos, contacts, and documents across your phone and flash drives. Free up device space by moving files to external storage and secure sensitive data with password protection.

More External Storage apps to explore

4
USB Disk SE, File Manager
USB Disk SE, File Manager
USB Disk SE, File Manager
Photo Viewer, MP3 Player, PDF
Free

This app allows you to store, view, and manage documents on your iPhone and iPad. It offers a built-in viewer, easy file transfers via iTunes, and integration with cloud storage services. Enjoy a simple interface with powerful features for organizing and accessing your files.

Cloud storage integration (Dropbox, Google Drive, OneDrive, Box)Store and view files on iPhone/iPodIntuitive swipe navigation
📊 Productivity
(810)
free with in-app purchases
5
Dropbox: Cloud Storage Backup
Dropbox: Cloud Storage Backup
Dropbox: Cloud Storage Backup
File Transfer & Photo Drive
Free

Securely store, sync, and share your files and photos across all your devices. Easily upload, access, and send documents, videos, and more from anywhere, even offline. Offers robust backup and recovery features for peace of mind.

Automatic photo and video uploadOffline file accessLarge file sharing via links
📊 Productivity
(857K)
free with in-app purchases
6
Microsoft OneDrive
Microsoft OneDrive
Microsoft OneDrive
File & photo cloud storage
Free

Securely store, back up, and sync your photos, videos, and files across all your devices. Share content with others, scan documents, and access files offline. Offers free storage with options to upgrade for more space and premium features.

Automatic photo and video backupFile sharing and managementDocument scanning and editing
📊 Productivity
(486K)
free with in-app purchases
7
SANDISK
SANDISK
SANDISK
by SanDisk Corporation
Free

Easily back up, manage, and protect your digital content. Organize files, free up space by transferring to compatible storage, and secure important memories with password protection.

Organize files with an intuitive interfaceBrowse photos and videos in timeline or grid viewsFree up space by transferring files
📊 Productivity
(18K)
free
8
Y-Disk
Y-Disk
Y-Disk
by Shenzhen Dianzhui Culture Technology Co., Ltd.
Free

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.

USB disk management for iPhoneBack up photos and contactsSave photos/videos directly to USB
🔧 Utilities
(1.7K)
free
9
Extra Space Storage
Extra Space Storage
Extra Space Storage
Life Storage & Storage Express
Free

Manage your storage unit and payments easily. Access facility information, gate codes, and even open gates with your phone at participating locations. Keep your account details updated and track access activity.

Facility information accessGate code storagePayment management
🔧 Utilities
(22K)
free
10
File Storage : View Organize & Store Photos, PDF and Files
File Storage : View Organize & Store Photos, PDF and Files
File Storage : View Organize & Store Photos, PDF and Files
by Savy Soda Pty Ltd
Free

This app allows you to download, view, and organize various file types like photos and PDFs directly on your iPhone or iPad. Keep important documents accessible and manage them with features like background downloads and security passcodes.

Download files to iPhone/iPadView and edit filesTransfer files
🔧 Utilities
(2.4K)
free with in-app purchases
11
Public Storage
Public Storage
Public Storage
Easy Self-Storage Management
Free

Manage your self-storage experience with ease. Access gates, pay bills, and manage your account all from your phone. Get quick customer support and enjoy a streamlined, contactless storage solution.

Contactless gate accessOne-tap bill paymentAutoPay activation
💼 Business
(104K)
free
12
uDisk
uDisk
uDisk
File Management Tools
Free

Transform your iOS device into a portable USB drive. Easily transfer files between your device and computer via Wi-Fi or iTunes. Browse, play, and edit various file types directly on your phone or tablet.

Use iOS device as USB diskWi-Fi file transferiTunes File Sharing
🔧 Utilities
(149)
free with in-app purchases
13
iXflash
iXflash
iXflash
by Vinpower Inc
Free

This app extends your iPhone, iPad, or iPod storage with a compatible OTG drive. It allows for quick photo backups, direct recording of 4K videos, file transfers, and offline media playback, saving you from costly cloud storage fees.

One-touch photo album backupLive recording with 4K supportPC/Mac to iDevice file transfer
🔧 Utilities
(74)
free
14
Picture Keeper Connect
Picture Keeper Connect
Picture Keeper Connect
Mobile Backup Simplified
Free

Effortlessly back up and protect your photos, videos, and contacts from your mobile device. Transfer files directly to a dedicated drive without Wi-Fi or cloud, freeing up device space and ensuring secure, accessible memories. Includes free tools to enhance your photos.

Backup photos, videos, and contactsTransfer without Wi-Fi or cloudFree up device storage
📷 Photo & Video
(7.4K)
free with in-app purchases
15
Smart Disk pro
Smart Disk pro
Smart Disk pro
by 斗云 李
Free
📊 Productivity
(0)
16
MEGA: Encrypted Cloud Storage
MEGA: Encrypted Cloud Storage
MEGA: Encrypted Cloud Storage
Secure Storage & Chat
Free

Securely store, sync, and share your files with end-to-end encryption. Communicate privately with encrypted chat and video calls. Access your data from any device, anywhere.

End-to-end encrypted cloud storageSecure one-on-one and group chatEncrypted audio and video calls
📊 Productivity
(103K)
free with in-app purchases
17
Total Drive - Cloud Storage
Total Drive - Cloud Storage
Total Drive - Cloud Storage
Secure Cloud Storage
Free

Safeguard your digital assets with a reliable cloud system that keeps your files secure and accessible from any device. Features include automatic backups, robust data protection against loss and ransomware, and dynamic sharing options for effortless collaboration.

Automatic photo and video backupRansomware and data loss protectionUniversal access and device sync
📊 Productivity
(1.5K)
free with in-app purchases
18
Cloud: 1 drive - more storage
Cloud: 1 drive - more storage
Cloud: 1 drive - more storage
Photo backup & save pictures
Free

This app offers a free cloud storage service for photos, videos, documents, and other files. It allows for automatic photo backup from your mobile device, freeing up space. You can easily share files and folders, stream media, and manage your data from any location.

Automatic photo backupFree up device spaceShare files and folders
📊 Productivity
(12K)
free with in-app purchases
19
Cleanup: Phone Storage Cleaner
Cleanup: Phone Storage Cleaner
Cleanup: Phone Storage Cleaner
Photo Clean, Delete Duplicates
Free

This app helps you free up iPhone storage by removing duplicate photos, videos, and junk emails. It also offers tools to compress videos, organize contacts, and hide personal content in a secure vault. Enjoy customizable charging animations and home screen widgets for quick access to cleanup features.

Delete duplicate photos and videosCompress videosClean up junk emails
🔧 Utilities
(675K)
freemium
20
Google Drive
Google Drive
Google Drive
Store, access and scan files
Free

Securely store, organize, and access your files from any device. Collaborate with others, scan documents, and search for content with ease. Offers advanced features for businesses and individuals.

Secure cloud storageFile organizationCross-device access
📊 Productivity
(7.6M)
free with in-app purchases