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Introduction

Apple's iOS operating system is known for its security and reliability. However, users often face the issue of app installation due to the restrictions on app installation on non-jailbroken devices. To overcome this limitation, iOS users often rely on iOS signing, which allows them to install unsigned or modified apps on their device. In this article, we will discuss the different types of iOS signing and how they work.

Types of iOS Signing

There are essentially two types of iOS signing that users can rely on to install unsigned apps on their device. They are:

1. Enterprise Signing: This type of signing is often used by organizations to distribute internal apps to employees. Enterprise signing requires an Apple Developer Enterprise Program account, which allows the organisation to sign and distribute proprietary apps to their employees without needing App Store approval. The Enterprise signing certificate is valid for one year, after which it needs to be renewed.
2. Developer Signing: Individuals or small development teams typically use this type of signing to install apps on their device for testing purposes. This type of signing requires an Apple Developer Program account, which allows developers to sign and distribute apps through the App Store for an annual fee. The developer signing certificate is valid for one year, after which it needs to be renewed.

The Process of iOS Signing

The process of iOS signing is simple, and users can follow these steps to install unsigned apps on their device:

1. Download the unsigned .ipa file of the app that you want to install on your iOS device.
2. Log in to the Apple Developer portal and create a new provisioning profile, specifying the device and app identifier.
3. Use a signing tool such as iReSign or Xcode to sign the .ipa file with the provisioning profile created in the previous step.
4. Connect your iOS device to your computer and install the signed app through the signing tool.
5. You may need to trust the developer profile on your iOS device by going to Settings > General > Profiles & Device Management and selecting the profile.
6. The app should now be installed on your iOS device and ready to use.

Conclusion

iOS signing is a useful technique that allows users to install unsigned or modified apps on their device. By using Enterprise or Developer signing, organizations or developers can distribute their proprietary apps without the hassle of App Store approval. The process of signing an app is simple, and with the right tools, users can easily install their desired apps on their iOS device. It is important to note that iOS signing does come with some risks, so users should only download apps from trusted sources to avoid security implications.