Comparison

USB Camera pro vs TCam Viewer

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

Head to head
About

USB Camera pro

This app enables iPads to function as external displays for USB cameras and video capture cards. It offers plug-and-play connectivity without drivers, supporting various devices and providing features like recording, screenshots, and image enhancement.

Highlights
  • Connect USB cameras and capture cards to iPad
  • External display for video capture
  • Plug-and-play, no driver needed
  • Synchronous recording of audiovisual picture
  • One-click screenshot
  • Super resolution picture quality enhancement
Features
Read full description

Use the latest iOS17 feature "Support external cameras in your iPadOS app" to implement iPad as additional output devices for video display. USB Camera Pro is an App that supports USB camera, USB video capture card and other USB devices to connect to iPad tablet through OTG, and drives iPad tablet to display audiovisual images. This App software is plug-and-play, no driver required, and supports a variety of USB cameras, USB video capture cards, and computer TV and other devices. The latest version also supports synchronous recording of the displayed audiovisual picture, one-click screenshot, performance detection, screen adjustment, super resolution picture quality enhancement, color adjustment, screen image reversal and other features. Note: Due to hardware reasons, this App is not currently supported for iPhone.

About

TCam Viewer

Easily view, trim, and export Tesla Dashcam and Sentry Mode videos directly on your iPhone. Supports multi-camera layouts and professional overlays with all processing done locally for enhanced privacy. Reconstruct events with smart clip merging and share footage quickly.

Highlights
  • Direct USB drive connection
  • Smart clip merging
  • Multi-view export
  • Timestamp, speed, and GPS overlays
  • Local processing for privacy
  • Simple trimming
Features
Read full description

Plug your Tesla dashcam USB drive directly into your iPhone to view, trim, and export Dashcam and Sentry Mode videos in minutes. Supports HW3 4-camera and AI4/HW4 6-camera footage, multi-view layouts, timestamp / speed / GPS overlays, and fully local processing for better privacy. [Plug and Play] • Connect your Tesla dashcam USB drive directly to iPhone • No laptop, file copying, or complicated workflow • Browse, manage, and export footage anywhere [Smart Clip Merging] • Automatically combines fragmented clips into a continuous timeline • Reconstructs complete events faster • Spend less time searching and more time reviewing [Multi-View Export] • Export single-camera footage in high quality • Create quad-view and multi-camera videos in one tap • Support a customizable “1 large + 3 small” layout with flexible camera order • Append selected cameras to play continuously after the main clip • See front, rear, left, and right angles together for full context [Professional Overlays] • Add accurate timestamp overlays • Parse native Tesla SEI telemetry data • Overlay speed, braking, steering, GPS, and more • Make footage easier to review, preserve, and share [Simple Trimming] • Smooth timeline scrubbing for precise selection • Simple workflow: choose a range → export • Turn raw clips into shareable videos quickly [Private by Design] • All processing happens locally on your device • No cloud upload, no remote storage • Your footage stays on your phone [Built for Tesla Owners] • Supports HW3 4-camera and AI4/HW4 6-camera systems • Keeps improving alongside Tesla OTA updates --- [Requirements] • A Lightning-to-USB or USB-C-to-USB adapter is required to connect your Tesla USB drive • B-pillar camera footage is available only on AI4/HW4 vehicles • SEI telemetry requires Tesla software version 2025.44.25 or later [Disclaimer] Tesla® and TeslaCam® are trademarks of Tesla, Inc. This app is independently developed and is not affiliated with, endorsed by, or sponsored by Tesla, Inc. Support: xudehui_work@163.com - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://githubxdh.github.io/tcam-legal/privacy-policy.html

Screenshots

USB Camera pro4 screens
TCam Viewer4 screens

Verdict

The call

The clearest difference is review sentiment: TCam Viewer at 100% against USB Camera pro's 46%. TCam Viewer also leads on rating (4.0 vs 3.2) and ads (none vs shown). USB Camera pro's advantage is in-app purchases (none vs 3) and ratings volume (13 vs 1). On price, device support and iOS requirement 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. TCam Viewer sells 3 in-app purchases, starting at $1.99 per month. USB Camera pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TCam Viewer holds the better App Store score, 4.0 against 3.2. That said, the two scores are not equally well evidenced: USB Camera pro has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 46% of USB Camera pro's written reviews are positive against 100% of TCam Viewer's.

UpkeepUpdate frequency

USB Camera pro ships an update every 2 months, TCam Viewer fortnightly. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 3 level
USB Camera pro versus TCam Viewer: the parameters behind the verdict, then further details
ParameterUSB Camera proTCam Viewer
PriceFreeFree
Rating3.2 (13 ratings)4.0 (1 ratings) — better
Positive reviews46.4% of reviews100.0% of reviews — better
Number of ratings13 — better1
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size35 MB33 MB
Age rating4+4+
Developer长沙春觉信息科技有限公司Dehui Xu

Customer experience

USB Camera pro

All ratings13 ratings
Positive53.8%
Neutral0.0%
Negative46.2%
Written reviews28 reviews
Positive46.4%
Neutral14.3%
Negative39.3%

TCam Viewer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

USB Camera pro

No in-app purchases

3 purchases

TCam Viewer

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Yearly Subscription$9.991 Year
One-time1
  • Lifetime Access$14.99

Questions

Is USB Camera pro free?
USB Camera pro is free to download, with no in-app purchases.
Is TCam Viewer free?
TCam Viewer is free to download, with in-app purchases available.
Which has better reviews, USB Camera pro or TCam Viewer?
TCam Viewer is rated higher. USB Camera pro averages 3.2 out of 5 from 13 ratings, while TCam Viewer averages 4.0 from 1 ratings.
Do USB Camera pro or TCam Viewer have ads?
USB Camera pro shows ads; TCam Viewer does not.
Which is updated more often, USB Camera pro or TCam Viewer?
USB Camera pro ships an update every 2 months, and TCam Viewer fortnightly. Most recently, USB Camera pro was updated on October 23, 2026 and TCam Viewer on October 7, 2026.

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