App Intents vs SiriKit Comparison

iOS 16+ modern Shortcuts + Siri integration

VS
SiriKit

iOS 10+ legacy Siri integration (Intents framework)

8 min readiOS

Quick Verdict

For new apps, App Intents is mandatory. For legacy SiriKit maintenance and iOS 10-15 support, it remains in use. Referencing SiriKit in iOS 16+-only projects is an anti-pattern. Migration takes 1-2 weeks for a medium-sized app.

App IntentsSiriKit
Read the full verdict

Score Comparison

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Detailed Scoring

Detailed Scoring: App Intents and SiriKit — category-by-category scores out of 10
CategoryApp IntentsSiriKit
Performance
10/10
7/10
Ease of Learning
9/10
6/10
Ecosystem
9/10
7/10
Community
8/10
7/10
Job Market
8/10
6/10
Future-Proof
10/10
5/10

Pros & Cons

App Intents

Pros

  • Type-safe, native Swift API
  • Native Shortcuts app integration
  • Single API covering Spotlight search, Siri, and widgets
  • No Intent Extension — runs in the main app process
  • Async/await support
  • ParameterSummary and dynamic parameters
  • App Shortcuts (no setup needed) — Siri suggests them automatically
  • iOS 17+ focus filters, Control Widgets

Cons

  • iOS 16+ only
  • Donation system differs from SiriKit
  • Some advanced voice NLU lags behind SiriKit (messaging, calls remain legacy)
  • Migration from SiriKit is manual

Best For

iOS 16+-only appsDeep Shortcuts automation integrationControl Widgets (iOS 18+)Spotlight search integrationModern SwiftUI apps

SiriKit

Pros

  • Broad iOS 10+ support
  • Built-in domains — messaging, calls, payments, ride booking
  • Voice-first NLU handled by Apple
  • Intent Extensions provide privacy isolation
  • Custom intents via IntentDefinition
  • Mature, 7+ years in production

Cons

  • Verbose setup — two targets (main app plus extension)
  • IntentDefinition file is Xcode GUI-based (hard to source control)
  • Limited to Apple's predefined domains for voice
  • Deprecated for new features as Apple promotes App Intents
  • Weak Swift integration (legacy Objective-C roots)

Best For

Apps needing iOS 10-15 supportUse of built-in domains (messaging, payments)Privacy-sensitive Intent ExtensionsMaintaining legacy SiriKit codebasesVoice-first apps on older foundations

Code Comparison

App Intents
import AppIntents

struct AddTodoIntent: AppIntent {
    static var title: LocalizedStringResource = "Add Todo"
    static var description = IntentDescription("Creates a new todo")

    @Parameter(title: "Title")
    var title: String

    func perform() async throws -> some IntentResult {
        try await TodoService.shared.create(title: title)
        return .result(dialog: "Added: \\(title)")
    }
}
SiriKit
import Intents

class AddTodoIntentHandler: NSObject, AddTodoIntentHandling {
    func handle(intent: AddTodoIntent, completion: @escaping (AddTodoIntentResponse) -> Void) {
        guard let title = intent.title else {
            completion(.failure)
            return
        }
        TodoService.shared.create(title: title)
        completion(.success)
    }
}

Conclusion

For new apps, App Intents is mandatory. For legacy SiriKit maintenance and iOS 10-15 support, it remains in use. Referencing SiriKit in iOS 16+-only projects is an anti-pattern. Migration takes 1-2 weeks for a medium-sized app.

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FAQ

Frequently Asked Questions

Moderate. Built-in domains have equivalents; custom intents need to be rewritten as App Intents. A gradual approach works — new features use App Intents while legacy SiriKit stays in place.

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