Comparison

USB 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

USB

Free

🔧 Utilities

★ 2.029 ratingsView app →

About

USB

This application connects to WIFI image transmission equipment, enabling wireless image data transfer between cameras and iOS devices. It allows for real-time, free transmission of visuals from anywhere, anytime.

Highlights

WIFI image transmission
Wireless connection to iOS devices
Real-time image data transfer
Anytime, anywhere access
Free wireless transmission

Features

Read full description

USB-VIEW application software is a combination of WIFI image transmission equipment using the software. with WIFI settings to achieve the camera through wireless WIFI and IOS system terminal equipment connection of application software.allows users to truly achieve anytime, anywhere,free wireless transmission of image data.

About

OTG Flash Pro

Read full description

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

USB4 screens

OTG Flash Pro4 screens

Verdict

The call

The clearest difference is update cadence: OTG Flash Pro at every 10 days against USB's every 5 weeks. 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

USB ships an update every 5 weeks, OTG Flash Pro every 10 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level

USB versus OTG Flash Pro: the parameters behind the verdict, then further details
Parameter	USB	OTG Flash Pro
Price	Free	Free
Rating	2.0 (29 ratings) — better	—
Positive reviews	18.2% of reviews	—
Number of ratings	29 — better	—
Update frequency	Every 5 weeks	Every 10 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	14.0
Further details — not scored
Size	8 MB	136 MB
Age rating	4+	4+
Developer	志强童	裕雨程

In-app purchases

None

USB

No in-app purchases

None

OTG Flash Pro

No in-app purchases

Questions

Is USB free?

USB 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 USB or OTG Flash Pro have ads?

Neither USB nor OTG Flash Pro shows ads.

Which is updated more often, USB or OTG Flash Pro?

USB ships an update every 5 weeks, and OTG Flash Pro every 10 days. Most recently, USB was updated on October 15, 2026 and OTG Flash Pro on October 16, 2026.