Comparison

iDUO Drive vs OTG Flash Pro

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

Head to head
About

iDUO Drive

Easily manage all your files on iDevices and transfer them between devices and platforms. Back up contacts and photos, and access cloud storage like iCloud, Dropbox, and Google Drive.

Highlights
  • Manage files on iDUO Lightning drives
  • Backup contacts and camera roll
  • Connect with iCloud, Dropbox, Google Drive
  • Browse and manage cloud files
  • Password protect Lightning drives
Features
Read full description

The iDUO Drive is the best App to manage all your files on iDevices, exchanging files among iDevices and platforms easily. Main Features: 1. Browse and manage files in iDUO Lightning drives. 2. Backup contacts and camera roll iDUO Lightning drives in one click. 3. Connect with iCloud, Dropbox, and Google Drive. Browse and manage files in the cloud. 4. Protect iDUO Lightning drives with password.

About

OTG Flash Pro

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OTG Flash Pro helps you easily manage files on your USB drive, classify and view files, and backup and restore photo albums and contacts for you.

Screenshots

iDUO Drive4 screens
OTG Flash Pro4 screens

Verdict

The call

The clearest difference is update cadence: OTG Flash Pro at every 10 days against iDUO Drive's every 6 weeks. iDUO Drive's advantage is iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iDUO Drive ships an update every 6 weeks, OTG Flash Pro every 10 days. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
iDUO Drive versus OTG Flash Pro: the parameters behind the verdict, then further details
ParameteriDUO DriveOTG Flash Pro
PriceFreeFree
Rating2.4 (31 ratings) — better—
Positive reviews6.7% of reviews—
Number of ratings31 — better—
Update frequencyEvery 6 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size39 MB136 MB
Age rating4+4+
DeveloperSuper Storage Technology Corp.裕雨 程

In-app purchases

None

iDUO Drive

No in-app purchases

None

OTG Flash Pro

No in-app purchases

Questions

Is iDUO Drive free?
iDUO Drive is free to download, with no in-app purchases.
Is OTG Flash Pro free?
OTG Flash Pro is free to download, with no in-app purchases.
Do iDUO Drive or OTG Flash Pro have ads?
Neither iDUO Drive nor OTG Flash Pro shows ads.
Which is updated more often, iDUO Drive or OTG Flash Pro?
iDUO Drive ships an update every 6 weeks, and OTG Flash Pro every 10 days. Most recently, iDUO Drive was updated on November 2, 2026 and OTG Flash Pro on October 28, 2026.

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