It is possible to invent a single machine which can be used to compute any computable sequence.
-- Alan Turing, 1936
UTM is a full featured virtual machine host for iOS. In short, it allows you to run Windows, Android, and more on your iPhone and iPad. More information at https://getutm.app/
- 30+ processors supported including x86_64, ARM64, and RISC-V thanks to qemu as a backend
- Fast native graphics through para-virtualization thanks to SPICE
- JIT based acceleration using qemu TCG
- Frontend designed from scratch for iOS11+ using the latest and greatest APIs
- Create, manage, run VMs directly from your device
- No jailbreak required for iOS 11-13! (required for iOS 14+)
If you just want to use UTM on iOS 11-13 or on jailbroken iOS 14, this is not the right place! Visit https://getutm.app/install/ for directions.
To run UTM without a jailbreak on iOS 14 (as well as to develop UTM on any iOS version), you must run with the Xcode debugger attached.
The recommended way to obtain the dependencies is to use the
built artifacts from Github Actions. Look for the latest release
build and download the Sysroot artifact from either the arm64 build
(for iOS) or x86_64 build (for iOS Simulator). Then unzip the
artifact to the root directory of UTM. You can then open
UTM.xcodeproj, select your signing certificate, and
then run UTM from Xcode.
If you want to build the dependencies yourself, it is highly
recommended that you start with a fresh macOS VM. This is because
some of the dependencies attempt to use
even though the architecture does not match. Certain installed
gawk will break
- Install Xcode command line and the following build
brew install bison pkg-config gettext glib libgpg-error nasmMake sure to add
git submodule update --init --recursiveif you haven't already
./scripts/build_dependencies.shto start the build. If building for the simulator, run
./scripts/build_dependencies.sh -p ios -a x86_64instead.
UTM.xcodeprojand select your signing certificate
- Select iOS as the target, build and deploy from Xcode
Mostly the same as for iOS but with the following changes:
- For building dependencies on Intel platforms, run
./scripts/build_dependencies.sh -p macos -a x86_64
- For building dependencies on Apple Silicon platforms, run
./scripts/build_dependencies.sh -p macos -a arm64
You may also download the prebuilt dependencies from Github instead.
ipa releases are fake-signed. If you are jailbroken, you
should NOT sign it. You can install directly with Filza.
If you want to sign the release for stock devices, there are a variety of ways. The recommended way is with iOS App Signer. Note there are known issues with many "cloud" signing services such as AppCake and they do not work with UTM. If you get a crash while trying to launch a VM, then your signing certificate was invalid.
In more technical detail, there are two kinds of signing
certificates: "development" and "distribution". UTM requires
"development" which has the
Signing Development Build
If you want to sign an
xcarchive such as from a
Github Actions built artifact, you can use the
./scripts/resign.sh UTM.xcarchive outputPath PROFILE_NAME TEAM_ID
PROFILE_NAME is the name of the provisioning
TEAM_ID is the identifier next to the team
name in the provisioning profile. Make sure the signing key is
imported into your keychain and the provision profile is installed
on your iOS device.
If you have a jailbroken device, you can also fake-sign it (with
./scripts/resign.sh UTM.xcarchive outputPath
Why isn't this in the AppStore?
Apple does not permit any apps that have interpreted or generated code therefore it is unlikely that UTM will ever be allowed. However, there are various ways people on the internet have come up to sideload apps without requiring a jailbreak. We do not condone or support any of these methods.
UTM is distributed under the permissive Apache 2.0 license. However, it uses several (L)GPL components. Most are dynamically linked but the gstreamer plugins are statically linked and parts of the code are taken from qemu. Please be aware of this if you intend on redistributing this application.