Comparison

Razer Cortex Mobile vs TslaScreen

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

Head to head
About

Razer Cortex Mobile

Enhance your mobile gaming with a console-like experience. Discover curated games, play your installed titles, customize your controller, and stream your gameplay. This app is the perfect companion for compatible Razer Kishi controllers.

Highlights
  • Curated game catalog
  • Play installed games
  • Controller customization
  • Record and stream gameplay
  • Xbox Cloud Gaming integration
  • Controller firmware updates
Features
Read full description

Razer Nexus is now renamed to Razer Cortex Mobile. Razer Cortex Mobile is compatible with the Razer Prio, Razer Kishi V3 series, Razer Kishi Ultra, and Razer Kishi V2 series. 【GAME CLIPS】 Play on PC with Razer Cortex to clip your greatest gaming moments into highlights. Game Clips on mobile quickly syncs those highlights to your phone so you can browse your full library and replay your best plays anytime, anywhere. Share your favorite clips to social platforms with just one tap. · PC gameplay highlights quickly synced to your phone—view them anytime, anywhere. · Browse and replay your full clip library anywhere. · Share to social platforms with one tap. 【DISCOVER THOUSANDS OF COMPATIBLE GAMES】 · Discover handpicked game recommendations across curated categories—find your next favorite game in seconds. · Optional video trailers make it easier to tell at a glance if a game looks fun, watch before you download. · Fully compatible with any game or service that supports controllers—just plug and play. 【CUSTOMIZE YOUR CONTROLLER】 · Remap buttons and triggers. · Adjust thumbstick dead zones and sensitivity. · Specify custom Chroma colors and animation patterns. · Update controller firmware for new features and improvements. 【XBOX CLOUD GAMING】 · Browse the complete catalog of Xbox Cloud games from within Cortex Mobile. · Includes information on how to play these games directly on your iPhone. · Xbox Game Pass Ultimate account required for most games. 【MORE FEATURES】 · Record and livestream your gameplay. · Customizable UI with Dynamic Color and Game Background modes.

About

TslaScreen

Mirror your iPhone screen to a compatible vehicle display wirelessly. Enjoy smooth, high-resolution streaming for navigation, entertainment, and more, all processed locally for enhanced privacy. Setup is quick and requires no extra hardware.

Highlights
  • Smooth 60 FPS streaming
  • Full resolution output
  • Audio streaming to vehicle
  • One-tap setup
  • No hardware required
  • 100% local streaming
  • Privacy-focused
Features
Read full description

Mirror your iPhone screen directly to a compatible vehicle display using TslaScreen — a fast, simple screen-mirroring solution that works through the vehicle’s built-in web browser. Video playback is available while parked. TslaScreen creates a local streaming server on your iPhone, allowing you to view your screen on a larger in-car display using the vehicle’s browser — with no cables, adapters, or external services required. FEATURES 60 FPS Smooth Streaming Fluid, responsive screen mirroring for navigation, media, and apps Full Resolution Output High-quality rendering that preserves native screen clarity Audio Support Stream app audio to the vehicle’s sound system (tap the screen to enable) One-Tap Setup Start mirroring in under 30 seconds No Hardware Required Works entirely over your existing Wi-Fi connection 100% Local Streaming All screen and audio data remains on your local network HOW IT WORKS Open TslaScreen on your iPhone Tap Start Server Open the vehicle’s built-in web browser Navigate to http://240.3.3.3 Tap the broadcast button to begin mirroring Tap the screen to enable audio PERFECT FOR Navigation — Display turn-by-turn navigation apps on a larger screen Entertainment — Watch streaming apps while parked Music — Show album art and lyrics from your favorite music apps Presentations — Share photos, documents, or slides with passengers Video Calls — View calls on a larger display while parked PRIVACY FIRST TslaScreen operates entirely on your local Wi-Fi network. No screen content, audio, or personal data is transmitted to external servers. REQUIREMENTS iPhone running iOS 16.6 or later Vehicle with a built-in web browser Both devices connected to the same Wi-Fi network LEGAL DISCLAIMER (IMPORTANT) TslaScreen is not affiliated with, endorsed by, or sponsored by Tesla, Inc. Tesla and related trademarks are the property of their respective owners.

Screenshots

Razer Cortex Mobile3 screens
TslaScreen4 screens

Verdict

The call

The clearest difference is in-app purchases: Razer Cortex Mobile at none against TslaScreen's 1. Razer Cortex Mobile also leads on ratings volume (3.5K vs 1). TslaScreen's advantage is update cadence (weekly vs every 2 months) and rating (5.0 vs 4.6). On price, review sentiment, ads and monetization model 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. TslaScreen sells 1 one-off in-app purchase. Razer Cortex Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TslaScreen holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Razer Cortex Mobile has 3.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 35% of Razer Cortex Mobile's written reviews are positive against 40% of TslaScreen's.

UpkeepUpdate frequency

Razer Cortex Mobile ships an update every 2 months, TslaScreen weekly. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Razer Cortex Mobile versus TslaScreen: the parameters behind the verdict, then further details
ParameterRazer Cortex MobileTslaScreen
PriceFreeFree
Rating4.6 (3.5K ratings)5.0 (1 ratings) — better
Positive reviews35.1% of reviews40.0% of reviews — better
Number of ratings3.5K — better1
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS1717.0
Further details — not scored
Size164 MB13 MB
Age rating4+4+
DeveloperRazerBryan Moore

Customer experience

Razer Cortex Mobile

All ratings3,468 ratings
Positive90.7%
Neutral2.9%
Negative6.4%
Written reviews228 reviews
Positive35.1%
Neutral12.3%
Negative52.6%

TslaScreen

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

Bugs and requests

Razer Cortex Mobile

Reported bugs

4 issues
  • App crashes on launch
  • Unable to detect or update controller firmware
  • Incompatibility with newer iOS versions and devices
  • Inability to add games or emulators to the app

Requested features

5 requests
  • Add more games and game genres
  • Integrate with cloud gaming and streaming services
  • Improve game library management and organization
  • Add support for virtual controller on iOS
  • Improve button remapping and customization options

TslaScreen

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Razer Cortex Mobile

No in-app purchases

1 purchases

TslaScreen

One-time1
  • TslaScreen Pro$9.99

Questions

Is Razer Cortex Mobile free?
Razer Cortex Mobile is free to download, with no in-app purchases.
Is TslaScreen free?
TslaScreen is free to download, with in-app purchases available.
Which has better reviews, Razer Cortex Mobile or TslaScreen?
TslaScreen is rated higher. Razer Cortex Mobile averages 4.6 out of 5 from 3.5K ratings, while TslaScreen averages 5.0 from 1 ratings.
Do Razer Cortex Mobile or TslaScreen have ads?
Neither Razer Cortex Mobile nor TslaScreen shows ads.
Which is updated more often, Razer Cortex Mobile or TslaScreen?
Razer Cortex Mobile ships an update every 2 months, and TslaScreen weekly. Most recently, Razer Cortex Mobile was updated on October 16, 2026 and TslaScreen on October 11, 2026.

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