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The feature flags module lets you enable or disable features remotely from the AppDNA Console. Flags are evaluated locally from cached config — no network call, no latency.

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Check a Flag

if (AppDNA.features.isEnabled("dark_mode")) {
    enableDarkMode()
}
isEnabled() returns false by default if the flag does not exist or config has not loaded.

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Module Access

val features = AppDNA.features

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Module Methods

MethodSignatureDescription
isEnabledisEnabled(flag: String): BooleanCheck if a feature flag is enabled
getAllFlagsgetAllFlags(): Map<String, Boolean>Get all flags and their current states

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Using Flags with Experiments

Feature flags and experiments work together. Gate a feature behind a flag, then run an experiment to test its impact: 
if (AppDNA.features.isEnabled("new_workout_ui")) {
    val variant = AppDNA.experiments.getVariant("workout_ui_test")

    when (variant) {
        "compact" -> showCompactWorkoutUI()
        "detailed" -> showDetailedWorkoutUI()
        else -> showDefaultWorkoutUI()
    }
} else {
    showLegacyWorkoutUI()
}

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FeatureFlagDelegate

Register a delegate to react when flags change after a config refresh: 
AppDNA.features.delegate = object : FeatureFlagDelegate {
    override fun onFlagChanged(flag: String, enabled: Boolean) {
        if (flag == "maintenance_mode" && enabled) {
            showMaintenanceScreen()
        }
    }
}

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Full Example

import ai.appdna.sdk.AppDNA

class FeatureGate {
    fun checkAccess(feature: String, onLocked: () -> Unit, onUnlocked: () -> Unit) {
        if (AppDNA.features.isEnabled(feature)) {
            onUnlocked()
        } else {
            onLocked()
        }
    }
}

// Usage
val gate = FeatureGate()

gate.checkAccess("ai_suggestions",
    onLocked = {
        AppDNA.paywall.present(
            "premium_paywall", activity,
            context = PaywallContext(placement = "feature_gate")
        )
    },
    onUnlocked = {
        showAISuggestions()
    }
)
Feature flags are managed in the Console under Settings > Feature Flags. Toggle a flag on or off and it takes effect on the next SDK config refresh (within the TTL window, default 5 minutes).