Comparison

USB Sharp vs MOMAX Backup

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

USB Sharp

Transform your iPhone or iPad into a portable wireless storage disk for efficient file management. Upload multiple files via Chrome and Firefox, extract encrypted RAR archives, and organize documents, photos, and videos with ease.

Highlights
  • Portable wireless storage
  • File management
  • Multiple file upload
  • Encrypted archive extraction
  • Document reader
  • Photo viewer
  • Video player
Features
Read full description

USB Sharp can turn your iPhone, ipad, ipod into a large Capacity, Portable and Wireless storage disk, Facilitate and efficient manage of your files! -------------------------------------------------------- V1.1.1 Updates 1. Chrome and Firefox Supported upload multiple files 2. Extract files from encryption .rar -------------------------------------------------------- V1.1.0 Updates ** Optimization pdf reader ** Support for importing videos/photos to Photo Library ** Support for exporting video from Photo Library -------------------------------------------------------- V1.0.4 Updates ** Search file(folder) name function added ** Picture Viewer Improved ** Unzip type added -------------------------------------------------------- V1.0.3 Updates New Features: ** add authentication for local login ** add authentication for wifi transfer ** Sorting by file size -------------------------------------------------------- V1.0.2 Updates * E-book reader (.epub) * Encryption folder, protect your files * Images thumbnail * Full screen view files Supported -------------------------------------------------------- V1.0.1 Updates * Open files in other applications specifically as follows: **** Facilitate and efficient manage files * Sorting by file name、create time and file type * View, copy, move, delete, rename, email, zip Compression and unzip files/folders * Extract all files from a compressed .zip file * Glide deleting function * Select all and DeSelect all * Transferring files by wifi and itunes file sharing * Email multiple files, folder Supported * Photo import Supported * Landscape mode supported * iPad-compatible **** Facilitate and efficient view files * Photo View, Zoom, move * Players, support mp3、m4a、aac and mp4 * Document reader, .pdf .rtf .rtfd .doc .docx etc * Multi-touch Supported, Zoom files * Bookmark supported, fast file location **** Facilitate and efficient edit plain files * Convert plain file encoding (Unicode,UTF-8 etc) * Plain file content copy, cut, paste and replace * External file copy and paste **** Add plain text(default encoding UTF-8), photos(from Camera) and folders **** Support Simplified Chinese and English USBSharp support list of file types: e-book: .epub Plain text: .txt Document: .pdf .csv .rtf .rtfd .doc .docx .xls .xlsx .ppt .pptx (office 2003 or later) Image: .png .jpg .jpeg .gif .bmp .xbm .tif .tiff Audio: .mp3 .m4a .aac Video: .mp4 .mov .m4v .3gp Web: .htm .html .xhtml Compressed: .zip .rar

About

MOMAX Backup

Easily manage and back up all your files from iOS devices. Transfer data between different devices and platforms, supporting over 45 file formats including documents, images, audio, and video.

Highlights
  • File management for iOS devices
  • Cross-device and cross-platform file exchange
  • Backup Camera Roll, Contacts, and Calendar
  • Supports over 45 file formats
  • Versatile data control
Read full description

The Momax Backup app is the best way to manage all your files on iOS devices. Exchanges files with different devices & platforms with ease. Backup Camera Roll / Contacts / Calendar contents to Momax iOS storage and keep control of your data. Support more than 45 different types of file formats : Document: Pages, Numbers, Keynote, doc, docx, xls, xlsx, ppt, pptx, rtf, txt, html, pdf Image: jpg, png, bmp, gif, tif, tiff, ico, xbm, cur, RAW Audio: mp3, aac, aif, aiff, wav, m4a, caf, FLAC Video: mp4, mov, m4v (without DRM), mkv, avi, flv, rm, rmvb, wmv, vob, 3gp Compressed: zip It’s the most versatile iOS file management solution for your data.

Screenshots

USB Sharp2 screens
MOMAX Backup2 screens

Verdict

The call

The clearest difference is review sentiment: USB Sharp at 63% against MOMAX Backup's 18%. USB Sharp also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (18 vs 2). MOMAX Backup's advantage is rating (5.0 vs 3.1) and in-app purchases (none vs 6). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. USB Sharp sells 6 one-off in-app purchases. MOMAX Backup asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MOMAX Backup holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: USB Sharp has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of USB Sharp's written reviews are positive against 18% of MOMAX Backup's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

USB Sharp ships an update every 3 weeks, MOMAX Backup every 3 months. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

Scorecard8 real differences · 2 level
USB Sharp versus MOMAX Backup: the parameters behind the verdict, then further details
ParameterUSB SharpMOMAX Backup
PriceFreeFree
Rating3.1 (18 ratings)5.0 (2 ratings) — better
Positive reviews62.9% of reviews — better18.2% of reviews
Number of ratings18 — better2
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size55 MB177 MB
Age rating4+4+
Developer锦文 游i-FlashDrive Inc.

Customer experience

USB Sharp

All ratings18 ratings
Positive44.4%
Neutral11.1%
Negative44.4%
Written reviews237 reviews
Positive62.9%
Neutral6.8%
Negative30.4%

MOMAX Backup

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive18.2%
Neutral18.2%
Negative63.6%

In-app purchases

6 purchases

USB Sharp

One-time6
  • Remove ads$0.99
  • Music Player$0.99
  • Dropbox$0.99
Show 3 more
  • Video Player$0.99
  • SkyDrive$0.99
  • Full Version$2.99
None

MOMAX Backup

No in-app purchases

Questions

Is USB Sharp free?
USB Sharp is free to download, with in-app purchases available.
Is MOMAX Backup free?
MOMAX Backup is free to download, with no in-app purchases.
Which has better reviews, USB Sharp or MOMAX Backup?
MOMAX Backup is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while MOMAX Backup averages 5.0 from 2 ratings.
Do USB Sharp or MOMAX Backup have ads?
USB Sharp shows ads; MOMAX Backup does not.
Which is updated more often, USB Sharp or MOMAX Backup?
USB Sharp ships an update every 3 weeks, and MOMAX Backup every 3 months. Most recently, USB Sharp was updated on October 21, 2026 and MOMAX Backup on October 7, 2026.

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