Comparison

Portable USB · Cloud Ready vs Diskio

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

Head to head
About

Portable USB · Cloud Ready

Transform your iPhone into a portable storage device. Easily manage local and cloud files, transfer them wirelessly or via USB, and share them securely. Supports a wide range of file formats for seamless viewing and organization.

Highlights
  • Cloud integration (GoogleDrive, Dropbox, OneDrive, iCloud)
  • Wi-Fi and USB file transfer
  • Secure multi-layer encryption
  • Comprehensive file management (search, organize, compress)
  • Full format support for viewing (PDF, Office, media)
  • Easy file sharing
Features
Read full description

"Portable USB" — Turn your iPhone into a portable storage hub to easily manage local and cloud files! No complicated operations needed—efficiently organize, view all types of files, and quickly share them with others. The interface is simple and easy to use, while packing powerful and practical features: ◆ Seamless Multi-Platform Cloud Integration Supports GoogleDrive, DropBox, OneDrive, and iCloud for one-step file synchronization; ◆ Flexible Transfer & Easy Sharing ・Wi-Fi Transfer: Wirelessly move files between your phone and computer with ease. ・USB Cable Sharing: For the fastest speed, use iTunes on Windows or Finder on macOS. ・Share files bidirectionally with other apps, or via email attachments. ◆ Multi-Layer Encryption for Your Privacy Keep your data safe with a secure 4-digit passcode, complex password, pattern lock, or Touch ID; ◆ All-in-One File Management Global search, folder categorization, rename/move/compress/decompress (ZIP), and multi-dimensional sorting; ◆ Full Format Support for Smooth Viewing ・PDFs (thumbnails, bookmarks, printing) ・Images (swipe to browse, zoom) ・Documents (Word, Excel, PPT, iWork, html) ・Audio & Video (mp4, mp3 and other mainstream formats) We also provide handy usage tips and professional technical support to make file management simpler for you! Have questions? Contact us: awfsksk@gmail.com

About

Diskio

This utility app provides precise speed tests for all your storage devices, from internal iPhone storage to external USB drives. Customize test parameters for detailed insights and identify performance bottlenecks. It offers a simple three-step process to analyze your storage's true capabilities.

Highlights
  • Precise disk speed testing
  • Tests internal and external storage
  • Customizable test parameters
  • Simple three-step process
  • Universally compatible with iOS devices
  • Identifies performance bottlenecks
Features
Read full description

How fast is your storage? Measure sequential read and write speeds on your iPhone or a compatible external drive. Go beyond one number with repeat runs and a detailed report. SEE THE WHOLE RESULT Choose 1, 3 or 6 runs. With 3 or 6 runs, see median read and write speeds, minimum and maximum values, and the result of every run. CHECK CONSISTENCY Choose 6 runs to assess read and write stability separately over the last five. See whether results are stable or vary, with the criteria explained in the app. TEST YOUR SETUP Use your iPhone's internal storage or select a compatible, writable external drive through Files. Choose a test file from 1 to 5 GiB and a block size of 1, 2, 4, 8 or 16 MiB. The defaults are 6 runs, a 1 GiB file and a 2 MiB block. UNDERSTAND THE MEASUREMENT Diskio 3.0 reworks the speed calculation and test-file sizing. Speeds are shown in MB/s, and write timing includes final filesystem synchronization. Follow each write and read phase as the test runs. SHARE THE DETAILS Send a result card with the full report, test settings and, after 6 runs, the stability assessment. The redesigned interface supports light and dark appearances, larger text and Reduce Motion. GET STARTED 1. Select your storage and test settings. 2. Start the test and keep Diskio open. 3. Review the report or share your results. A test needs enough free space for a temporary file. External storage must be accessible and writable through Files. Results depend on the device, storage, connection, free space and test settings. The stability assessment adapts numerical criteria from SNIA SSS PTS. It is not a full SNIA-compliant benchmark, a drive-health check or a sustained-performance rating. Measurements in version 3.0 may differ from earlier versions because the method has changed.

Screenshots

Portable USB · Cloud Ready4 screens
Diskio4 screens

Verdict

The call

The clearest difference is price: Portable USB · Cloud Ready at Free against Diskio's $5.99. Portable USB · Cloud Ready also leads on review sentiment (82% vs 44%) and rating (4.2 vs 3.9). Diskio's advantage is in-app purchases (none vs 2) and update cadence (weekly vs every 3 months). On ads 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

Portable USB · Cloud Ready is free to download; Diskio costs $5.99 up front. Portable USB · Cloud Ready sells 2 one-off in-app purchases. Diskio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Portable USB · Cloud Ready holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 59 and 17 respectively. Written reviews point the same way: 82% of Portable USB · Cloud Ready's written reviews are positive against 44% of Diskio's.

UpkeepUpdate frequency

Portable USB · Cloud Ready ships an update every 3 months, Diskio weekly. Both last shipped on September 29, 2026.

Scorecard9 real differences · 1 level
Portable USB · Cloud Ready versus Diskio: the parameters behind the verdict, then further details
ParameterPortable USB · Cloud ReadyDiskio
PriceFree — better$5.99
Rating4.2 (59 ratings) — better3.9 (17 ratings)
Positive reviews81.6% of reviews — better44.4% of reviews
Number of ratings59 — better17
Update frequencyEvery 3 monthsWeekly — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size39 MB10 MB
Age rating4+4+
Developer炜 桂Sergii Khliustin

Customer experience

Portable USB · Cloud Ready

All ratings59 ratings
Positive78.0%
Neutral11.9%
Negative10.2%
Written reviews98 reviews
Positive81.6%
Neutral7.1%
Negative11.2%

Diskio

All ratings17 ratings
Positive70.6%
Neutral11.8%
Negative17.6%
Written reviews9 reviews
Positive44.4%
Neutral22.2%
Negative33.3%

Bugs and requests

Portable USB · Cloud Ready

Reported bugs

5 issues
  • USB to iPhone not registering
  • Ads are unclosable due to placement
  • Cannot sync with Dropbox
  • Videos cannot be rotated to full screen
  • Pictures organized in incorrect order

Requested features

6 requests
  • Option to see photos stored
  • Thumbnail view for photos
  • Smoother implementation
  • Sync with Dropbox
  • Option to check space available
Show 1 more
  • Videos can be rotated to full screen

Diskio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Portable USB · Cloud Ready

One-time2
  • Remove Ads$0.99
  • Cloud Feature$2.99
None

Diskio

No in-app purchases

Questions

Is Portable USB · Cloud Ready free?
Portable USB · Cloud Ready is free to download, with in-app purchases available.
Is Diskio free?
Diskio costs $5.99, with no in-app purchases.
Which has better reviews, Portable USB · Cloud Ready or Diskio?
Portable USB · Cloud Ready is rated higher. Portable USB · Cloud Ready averages 4.2 out of 5 from 59 ratings, while Diskio averages 3.9 from 17 ratings.
Do Portable USB · Cloud Ready or Diskio have ads?
Both Portable USB · Cloud Ready and Diskio show ads.
Which is updated more often, Portable USB · Cloud Ready or Diskio?
Portable USB · Cloud Ready ships an update every 3 months, and Diskio weekly. Most recently, Portable USB · Cloud Ready was updated on September 29, 2026 and Diskio on September 29, 2026.

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