UTM SE vs Razer Cortex Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UTM SE
Experience classic computing by running old-school games and software. This emulator supports various display modes and processor architectures, allowing you to run pre-built systems or configure your own.
- Run classic software and games
- VGA and terminal modes
- Emulates x86, ARM, PPC, RISC-V
- Pre-built or custom machine configurations
- Built from QEMU
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UTM SE is a PC emulator that allows you to run classic software and old-school games. * Supports both VGA mode for graphics and terminal mode for text-only operating systems * Emulates x86, ARM, PPC, and RISC-V architectures * Run pre-built machines or create your own configuration from scratch * Built from QEMU, a powerful and widely used emulator
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.
- Curated game catalog
- Play installed games
- Controller customization
- Record and stream gameplay
- Xbox Cloud Gaming integration
- Controller firmware updates
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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.
Screenshots
Verdict
The clearest difference is rating: Razer Cortex Mobile at 4.6 against UTM SE's 3.8. Razer Cortex Mobile also leads on in-app purchases (none vs 3) and update cadence (every 2 months vs every 4 months). UTM SE's advantage is review sentiment (55% vs 35%) and device support (4 vs 2). On price and ads 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. UTM SE sells 3 one-off in-app purchases. Razer Cortex Mobile asks for nothing beyond the download.
Razer Cortex Mobile holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Razer Cortex Mobile has 3.5K ratings behind it against 563, so its average is the more settled of the two. Written reviews complicate that: 55% of UTM SE's written reviews are positive against 35% of Razer Cortex Mobile's, so the app with the better star average is not the one people write more warmly about.
UTM SE ships an update every 4 months, Razer Cortex Mobile every 2 months. Both last shipped on October 25, 2026.
| Parameter | UTM SE | Razer Cortex Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (563 ratings) | 4.6 (3.5K ratings) — better |
| Positive reviews | 54.7% of reviews — better | 35.1% of reviews |
| Number of ratings | 563 | 3.5K — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Vision Pro — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17 |
| Further details — not scored | ||
| Size | 1.6 GB | 164 MB |
| Age rating | 4+ | 4+ |
| Developer | Turing Software, LLC | Razer |
Customer experience
UTM SE
Razer Cortex Mobile
User reviews
UTM SE
From 563 App Store ratingsWhat we love
- 🚀 Great app that can run Windows and macOS
- 👍 Useful for nostalgic reasons
- 👍 Can run Linux VMs
Room to improve
- 🐛 Slow performance, especially on older devices
- 🐛 Crashes and freezes
- 🐛 Display and boot issues
- 🐛 Incompatible with some ISOs and VMs
Razer Cortex Mobile
From 3.5K App Store ratingsWhat we love
- 👍 Good quality and controls
- 🚀 Improved app features and polish
- 🚀 Ability to add games to launcher
- 👍 No subscription required for features
Room to improve
- 🐛 Unable to add games or emulators to the app
- 🐛 Compatibility issues with newer devices (iPhone 15)
- 🐛 Crashes and bugs with the app
- 🐛 Lack of support for virtual controller on iOS
- 🐛 Inability to remap all buttons
Bugs and requests
UTM SE
Reported bugs
3 issues- Inability to select .img files as floppy boot images
- Crashes when trying to leave a VM
- Crashes when adjusting virtual CD-ROM drive settings
Requested features
3 requests- Add support for JIT compilation to improve performance
- Improve Magic Keyboard support
- Allow exporting VMs to run on other platforms
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
In-app purchases
UTM SE
- Transistor$0.99
- Chip$4.99
- Computer$9.99
Razer Cortex Mobile
No in-app purchases
