iUSB Drive vs OTG Flash Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iUSB Drive
This app allows you to manage files on a dual-connector USB drive. It enables file transfer, backup, and direct playback of media on iOS devices and computers.
- Browse files on drive and app
- Transfer files between device and app
- Backup iOS photos to drive
- Backup and restore contacts
- Independent music/movie playback
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iUSB Drive is a USB drive with 2 connectors: 1, USB2.0/3.0 A, to connect to Mac or PC. In this way, iUSB Drive acts as a general USB drive. Users can manage files in it, copy, cut, past or delete, ect. Users can also browse files in it directly, including preview documents, playback music and movies. 2, Apple lightning connector, to connect to iOS device with lightning connector. With this app, iUSB Drive, users can manage files in it, copy, cut, past or delete, ect. Users can also browse files in it directly, including preview documents such as .txt, .doc, .pdf, playback music and movies. iUSB Drive is the App of the iUSB drive, it supports the following features: * Browse files in the device. * Browse files in the app. * Transfer files between the device and the app. * Backup photos in the iOS to the device. * Backup and restore the contacts in the iOS device. * Independent music and movie playback.
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
Verdict
The clearest difference is update cadence: OTG Flash Pro at every 10 days against iUSB Drive's every 8 months. iUSB Drive's advantage is iOS requirement (8.0 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iUSB Drive ships an update every 8 months, OTG Flash Pro every 10 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | iUSB Drive | OTG Flash Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (91 ratings) — better | — |
| Positive reviews | 16.3% of reviews | — |
| Number of ratings | 91 — better | — |
| Update frequency | Every 8 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 26 MB | 136 MB |
| Age rating | 4+ | 4+ |
| Developer | 平 陈 | 裕雨 程 |
In-app purchases
iUSB Drive
No in-app purchases
OTG Flash Pro
No in-app purchases
