diff --git a/src/main/kotlin/com/looker/droidify/entity/AntiFeatures.kt b/src/main/kotlin/com/looker/droidify/entity/AntiFeatures.kt
new file mode 100644
index 00000000..bd37b3b7
--- /dev/null
+++ b/src/main/kotlin/com/looker/droidify/entity/AntiFeatures.kt
@@ -0,0 +1,39 @@
+package com.looker.droidify.entity
+
+import com.looker.droidify.R
+
+sealed class AntiFeatures(val name: String, val string: Int) {
+    object Ads : AntiFeatures("Ads", R.string.has_advertising)
+    object ApplicationDebuggable :
+        AntiFeatures("ApplicationDebuggable", R.string.compiled_for_debugging)
+
+    object DisabledAlgorithm :
+        AntiFeatures("DisabledAlgorithm", R.string.signed_using_unsafe_algorithm)
+
+    object KnownVuln : AntiFeatures("KnownVuln", R.string.has_security_vulnerabilities)
+    object NoSourceSince : AntiFeatures("NoSourceSince", R.string.source_code_no_longer_available)
+    object NonFreeAdd : AntiFeatures("NonFreeAdd", R.string.promotes_non_free_software)
+    object NonFreeAssets : AntiFeatures("NonFreeAssets", R.string.contains_non_free_media)
+    object NonFreeDep : AntiFeatures("NonFreeDep", R.string.has_non_free_dependencies)
+    object NonFreeNet : AntiFeatures("NonFreeNet", R.string.promotes_non_free_network_services)
+    object Tracking : AntiFeatures("Tracking", R.string.tracks_or_reports_your_activity)
+    object UpstreamNonFree :
+        AntiFeatures("UpstreamNonFree", R.string.upstream_source_code_is_not_free)
+
+    object Others : AntiFeatures("Others", R.string.unknown_FORMAT)
+}
+
+fun String.toAntiFeatures() = when (this) {
+    AntiFeatures.Ads.name -> AntiFeatures.Ads
+    AntiFeatures.ApplicationDebuggable.name -> AntiFeatures.ApplicationDebuggable
+    AntiFeatures.DisabledAlgorithm.name -> AntiFeatures.Ads
+    AntiFeatures.KnownVuln.name -> AntiFeatures.Ads
+    AntiFeatures.NoSourceSince.name -> AntiFeatures.Ads
+    AntiFeatures.NonFreeAdd.name -> AntiFeatures.Ads
+    AntiFeatures.NonFreeAssets.name -> AntiFeatures.Ads
+    AntiFeatures.NonFreeDep.name -> AntiFeatures.Ads
+    AntiFeatures.NonFreeNet.name -> AntiFeatures.Ads
+    AntiFeatures.Tracking.name -> AntiFeatures.Ads
+    AntiFeatures.UpstreamNonFree.name -> AntiFeatures.Ads
+    else -> AntiFeatures.Others
+}
\ No newline at end of file