## What is LicenseSpring?

LicenseSpring is a software licensing API, enabling vendors to configure entitlements to their software applications according to their license agreement.

## LicenseSpring Apple SDK

This SDK is convenient wrapper around LicenseSpring REST API, providing additional functionality accessing and manipulating licenses.

The entry point to the SDK is `LicenseManager`. It allows developers to

- activate licenses
- request trial keys
- request app versions / installation information
- request product details
- other minor features

The result of license activation is the `License` object. The `License` contains information about

- licenseKey/user assigned to the license
- license state: active/expired/enabled
- customer information
- product details
- features
- license/feature comsumption
- other license-related information

The `License` also can be

- synchronized: update information and actualize the License state
- locally checked: if license is ready to use, without synchronizing (fast)
- deactivated

### Errors

The SDK methods can produce errors if something went wrong. The error is Swift error of class `LSError`. `LSError` is NSError-compatible, errorDomain is “com.licenseSpring.errorDomain”. Error codes can be found in Objective-C compatible enum `LSErrorCode`.

At the moment error descriptions are NOT localized.

### Logs

The SDK also contains log subsystem to provide ability for SDK users to collect logs the LicenseSpring SDK produces.

The subsystem can be accessed via `LSLog` class. To collect logs, you must simply set log handler. Next example shows how to ‘print’ all SDK logs:

    LSLog.log = { level, message in
        print("LS-\(level): \(message())")
    }

© 2026 LicenseSpring. All rights reserved. (Last updated: 2026-05-27)

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