Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/kotlin/comparisons/ComparisonsKt.java

@@ -0,0 +1,10 @@
+package kotlin.comparisons;
+
+import kotlin.Metadata;
+
+@Metadata(d1 = {"kotlin/comparisons/ComparisonsKt__ComparisonsKt", "kotlin/comparisons/ComparisonsKt___ComparisonsJvmKt", "kotlin/comparisons/ComparisonsKt___ComparisonsKt"}, k = 4, mv = {1, 9, 0}, xi = 49)
+/* loaded from: classes3.dex */
+public final class ComparisonsKt extends ComparisonsKt___ComparisonsKt {
+    private ComparisonsKt() {
+    }
+}

apk_decompiled/sources/kotlin/comparisons/ComparisonsKt__ComparisonsKt$compareBy$2.java

@@ -0,0 +1,24 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.jvm.functions.Function1;
+import kotlin.jvm.internal.SourceDebugExtension;
+
+@Metadata(d1 = {"\u0000\n\n\u0000\n\u0002\u0010\b\n\u0002\b\u0006\u0010\u0000\u001a\u00020\u0001\"\u0004\b\u0000\u0010\u00022\u000e\u0010\u0003\u001a\n \u0004*\u0004\u0018\u0001H\u0002H\u00022\u000e\u0010\u0005\u001a\n \u0004*\u0004\u0018\u0001H\u0002H\u0002H\n¢\u0006\u0004\b\u0006\u0010\u0007"}, d2 = {"<anonymous>", "", "T", "a", "kotlin.jvm.PlatformType", "b", "compare", "(Ljava/lang/Object;Ljava/lang/Object;)I"}, k = 3, mv = {1, 9, 0}, xi = 176)
+@SourceDebugExtension({"SMAP\nComparisons.kt\nKotlin\n*S Kotlin\n*F\n+ 1 Comparisons.kt\nkotlin/comparisons/ComparisonsKt__ComparisonsKt$compareBy$2\n*L\n1#1,328:1\n*E\n"})
+/* loaded from: classes3.dex */
+public final class ComparisonsKt__ComparisonsKt$compareBy$2<T> implements Comparator {
+    final /* synthetic */ Function1<T, Comparable<?>> $selector;
+
+    /* JADX WARN: Multi-variable type inference failed */
+    public ComparisonsKt__ComparisonsKt$compareBy$2(Function1<? super T, ? extends Comparable<?>> function1) {
+        this.$selector = function1;
+    }
+
+    @Override // java.util.Comparator
+    public final int compare(T t2, T t4) {
+        Function1<T, Comparable<?>> function1 = this.$selector;
+        return ComparisonsKt__ComparisonsKt.compareValues(function1.invoke(t2), function1.invoke(t4));
+    }
+}

apk_decompiled/sources/kotlin/comparisons/ComparisonsKt__ComparisonsKt$compareByDescending$1.java

@@ -0,0 +1,24 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.jvm.functions.Function1;
+import kotlin.jvm.internal.SourceDebugExtension;
+
+@Metadata(d1 = {"\u0000\n\n\u0000\n\u0002\u0010\b\n\u0002\b\u0006\u0010\u0000\u001a\u00020\u0001\"\u0004\b\u0000\u0010\u00022\u000e\u0010\u0003\u001a\n \u0004*\u0004\u0018\u0001H\u0002H\u00022\u000e\u0010\u0005\u001a\n \u0004*\u0004\u0018\u0001H\u0002H\u0002H\n¢\u0006\u0004\b\u0006\u0010\u0007"}, d2 = {"<anonymous>", "", "T", "a", "kotlin.jvm.PlatformType", "b", "compare", "(Ljava/lang/Object;Ljava/lang/Object;)I"}, k = 3, mv = {1, 9, 0}, xi = 176)
+@SourceDebugExtension({"SMAP\nComparisons.kt\nKotlin\n*S Kotlin\n*F\n+ 1 Comparisons.kt\nkotlin/comparisons/ComparisonsKt__ComparisonsKt$compareByDescending$1\n*L\n1#1,328:1\n*E\n"})
+/* loaded from: classes3.dex */
+public final class ComparisonsKt__ComparisonsKt$compareByDescending$1<T> implements Comparator {
+    final /* synthetic */ Function1<T, Comparable<?>> $selector;
+
+    /* JADX WARN: Multi-variable type inference failed */
+    public ComparisonsKt__ComparisonsKt$compareByDescending$1(Function1<? super T, ? extends Comparable<?>> function1) {
+        this.$selector = function1;
+    }
+
+    @Override // java.util.Comparator
+    public final int compare(T t2, T t4) {
+        Function1<T, Comparable<?>> function1 = this.$selector;
+        return ComparisonsKt__ComparisonsKt.compareValues(function1.invoke(t4), function1.invoke(t2));
+    }
+}

apk_decompiled/sources/kotlin/comparisons/ComparisonsKt___ComparisonsKt.java

@@ -0,0 +1,58 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.SinceKotlin;
+import kotlin.jvm.internal.Intrinsics;
+
+@Metadata(d1 = {"\u0000\u0018\n\u0002\b\u0006\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0010\u0011\n\u0002\b\u0003\u001aG\u0010\u0000\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0006\u0010\u0003\u001a\u0002H\u00012\u0006\u0010\u0004\u001a\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\b\u001a?\u0010\u0000\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0006\u0010\u0003\u001a\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\t\u001aK\u0010\u0000\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0012\u0010\n\u001a\n\u0012\u0006\b\u0001\u0012\u0002H\u00010\u000b\"\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\f\u001aG\u0010\r\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0006\u0010\u0003\u001a\u0002H\u00012\u0006\u0010\u0004\u001a\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\b\u001a?\u0010\r\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0006\u0010\u0003\u001a\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\t\u001aK\u0010\r\u001a\u0002H\u0001\"\u0004\b\u0000\u0010\u00012\u0006\u0010\u0002\u001a\u0002H\u00012\u0012\u0010\n\u001a\n\u0012\u0006\b\u0001\u0012\u0002H\u00010\u000b\"\u0002H\u00012\u001a\u0010\u0005\u001a\u0016\u0012\u0006\b\u0000\u0012\u0002H\u00010\u0006j\n\u0012\u0006\b\u0000\u0012\u0002H\u0001`\u0007H\u0007¢\u0006\u0002\u0010\f¨\u0006\u000e"}, d2 = {"maxOf", "T", "a", "b", "c", "comparator", "Ljava/util/Comparator;", "Lkotlin/Comparator;", "(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/util/Comparator;)Ljava/lang/Object;", "(Ljava/lang/Object;Ljava/lang/Object;Ljava/util/Comparator;)Ljava/lang/Object;", "other", "", "(Ljava/lang/Object;[Ljava/lang/Object;Ljava/util/Comparator;)Ljava/lang/Object;", "minOf", "kotlin-stdlib"}, k = 5, mv = {1, 9, 0}, xi = 49, xs = "kotlin/comparisons/ComparisonsKt")
+/* loaded from: classes3.dex */
+class ComparisonsKt___ComparisonsKt extends ComparisonsKt___ComparisonsJvmKt {
+    @SinceKotlin(version = "1.1")
+    public static final <T> T maxOf(T t2, T t4, T t5, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        return (T) maxOf(t2, maxOf(t4, t5, comparator), comparator);
+    }
+
+    @SinceKotlin(version = "1.1")
+    public static final <T> T minOf(T t2, T t4, T t5, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        return (T) minOf(t2, minOf(t4, t5, comparator), comparator);
+    }
+
+    @SinceKotlin(version = "1.1")
+    public static final <T> T maxOf(T t2, T t4, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        return comparator.compare(t2, t4) >= 0 ? t2 : t4;
+    }
+
+    @SinceKotlin(version = "1.1")
+    public static final <T> T minOf(T t2, T t4, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        return comparator.compare(t2, t4) <= 0 ? t2 : t4;
+    }
+
+    @SinceKotlin(version = "1.4")
+    public static final <T> T maxOf(T t2, T[] other, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(other, "other");
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        for (T t4 : other) {
+            if (comparator.compare(t2, t4) < 0) {
+                t2 = t4;
+            }
+        }
+        return t2;
+    }
+
+    @SinceKotlin(version = "1.4")
+    public static final <T> T minOf(T t2, T[] other, Comparator<? super T> comparator) {
+        Intrinsics.checkNotNullParameter(other, "other");
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        for (T t4 : other) {
+            if (comparator.compare(t2, t4) > 0) {
+                t2 = t4;
+            }
+        }
+        return t2;
+    }
+}

apk_decompiled/sources/kotlin/comparisons/NaturalOrderComparator.java

@@ -0,0 +1,32 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+
+/* JADX INFO: Access modifiers changed from: package-private */
+@Metadata(d1 = {"\u0000 \n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u000f\n\u0002\u0010\u0000\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0010\b\n\u0002\b\u0004\bÂ\u0002\u0018\u00002\u001e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u00020\u0001j\u000e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u0002`\u0004B\u0007\b\u0002¢\u0006\u0002\u0010\u0005J$\u0010\u0006\u001a\u00020\u00072\f\u0010\b\u001a\b\u0012\u0004\u0012\u00020\u00030\u00022\f\u0010\t\u001a\b\u0012\u0004\u0012\u00020\u00030\u0002H\u0016J\"\u0010\n\u001a\u001e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u00020\u0001j\u000e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u0002`\u0004¨\u0006\u000b"}, d2 = {"Lkotlin/comparisons/NaturalOrderComparator;", "Ljava/util/Comparator;", "", "", "Lkotlin/Comparator;", "()V", "compare", "", "a", "b", "reversed", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class NaturalOrderComparator implements Comparator<Comparable<? super Object>> {
+    public static final NaturalOrderComparator INSTANCE = new NaturalOrderComparator();
+
+    private NaturalOrderComparator() {
+    }
+
+    @Override // java.util.Comparator
+    public /* bridge */ /* synthetic */ int compare(Comparable<? super Object> comparable, Comparable<? super Object> comparable2) {
+        return compare2((Comparable<Object>) comparable, (Comparable<Object>) comparable2);
+    }
+
+    @Override // java.util.Comparator
+    public final Comparator<Comparable<? super Object>> reversed() {
+        return ReverseOrderComparator.INSTANCE;
+    }
+
+    /* renamed from: compare, reason: avoid collision after fix types in other method */
+    public int compare2(Comparable<Object> a2, Comparable<Object> b4) {
+        Intrinsics.checkNotNullParameter(a2, "a");
+        Intrinsics.checkNotNullParameter(b4, "b");
+        return a2.compareTo(b4);
+    }
+}

apk_decompiled/sources/kotlin/comparisons/ReverseOrderComparator.java

@@ -0,0 +1,32 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+
+/* JADX INFO: Access modifiers changed from: package-private */
+@Metadata(d1 = {"\u0000 \n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u000f\n\u0002\u0010\u0000\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0010\b\n\u0002\b\u0004\bÂ\u0002\u0018\u00002\u001e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u00020\u0001j\u000e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u0002`\u0004B\u0007\b\u0002¢\u0006\u0002\u0010\u0005J$\u0010\u0006\u001a\u00020\u00072\f\u0010\b\u001a\b\u0012\u0004\u0012\u00020\u00030\u00022\f\u0010\t\u001a\b\u0012\u0004\u0012\u00020\u00030\u0002H\u0016J\"\u0010\n\u001a\u001e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u00020\u0001j\u000e\u0012\n\u0012\b\u0012\u0004\u0012\u00020\u00030\u0002`\u0004¨\u0006\u000b"}, d2 = {"Lkotlin/comparisons/ReverseOrderComparator;", "Ljava/util/Comparator;", "", "", "Lkotlin/Comparator;", "()V", "compare", "", "a", "b", "reversed", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class ReverseOrderComparator implements Comparator<Comparable<? super Object>> {
+    public static final ReverseOrderComparator INSTANCE = new ReverseOrderComparator();
+
+    private ReverseOrderComparator() {
+    }
+
+    @Override // java.util.Comparator
+    public /* bridge */ /* synthetic */ int compare(Comparable<? super Object> comparable, Comparable<? super Object> comparable2) {
+        return compare2((Comparable<Object>) comparable, (Comparable<Object>) comparable2);
+    }
+
+    @Override // java.util.Comparator
+    public final Comparator<Comparable<? super Object>> reversed() {
+        return NaturalOrderComparator.INSTANCE;
+    }
+
+    /* renamed from: compare, reason: avoid collision after fix types in other method */
+    public int compare2(Comparable<Object> a2, Comparable<Object> b4) {
+        Intrinsics.checkNotNullParameter(a2, "a");
+        Intrinsics.checkNotNullParameter(b4, "b");
+        return b4.compareTo(a2);
+    }
+}

apk_decompiled/sources/kotlin/comparisons/ReversedComparator.java

@@ -0,0 +1,30 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+
+@Metadata(d1 = {"\u0000\u001a\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0005\n\u0002\u0010\b\n\u0002\b\u0005\b\u0002\u0018\u0000*\u0004\b\u0000\u0010\u00012\u0012\u0012\u0004\u0012\u0002H\u00010\u0002j\b\u0012\u0004\u0012\u0002H\u0001`\u0003B\u001d\u0012\u0016\u0010\u0004\u001a\u0012\u0012\u0004\u0012\u00028\u00000\u0002j\b\u0012\u0004\u0012\u00028\u0000`\u0003¢\u0006\u0002\u0010\u0005J\u001d\u0010\b\u001a\u00020\t2\u0006\u0010\n\u001a\u00028\u00002\u0006\u0010\u000b\u001a\u00028\u0000H\u0016¢\u0006\u0002\u0010\fJ\u0016\u0010\r\u001a\u0012\u0012\u0004\u0012\u00028\u00000\u0002j\b\u0012\u0004\u0012\u00028\u0000`\u0003R!\u0010\u0004\u001a\u0012\u0012\u0004\u0012\u00028\u00000\u0002j\b\u0012\u0004\u0012\u00028\u0000`\u0003¢\u0006\b\n\u0000\u001a\u0004\b\u0006\u0010\u0007¨\u0006\u000e"}, d2 = {"Lkotlin/comparisons/ReversedComparator;", "T", "Ljava/util/Comparator;", "Lkotlin/Comparator;", "comparator", "(Ljava/util/Comparator;)V", "getComparator", "()Ljava/util/Comparator;", "compare", "", "a", "b", "(Ljava/lang/Object;Ljava/lang/Object;)I", "reversed", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+final class ReversedComparator<T> implements Comparator<T> {
+    private final Comparator<T> comparator;
+
+    public ReversedComparator(Comparator<T> comparator) {
+        Intrinsics.checkNotNullParameter(comparator, "comparator");
+        this.comparator = comparator;
+    }
+
+    @Override // java.util.Comparator
+    public int compare(T a2, T b4) {
+        return this.comparator.compare(b4, a2);
+    }
+
+    public final Comparator<T> getComparator() {
+        return this.comparator;
+    }
+
+    @Override // java.util.Comparator
+    public final Comparator<T> reversed() {
+        return this.comparator;
+    }
+}

apk_decompiled/sources/kotlin/comparisons/UComparisonsKt.java

@@ -0,0 +1,10 @@
+package kotlin.comparisons;
+
+import kotlin.Metadata;
+
+@Metadata(d1 = {"kotlin/comparisons/UComparisonsKt___UComparisonsKt"}, k = 4, mv = {1, 9, 0}, xi = 49)
+/* loaded from: classes3.dex */
+public final class UComparisonsKt extends UComparisonsKt___UComparisonsKt {
+    private UComparisonsKt() {
+    }
+}

apk_decompiled/sources/kotlin/comparisons/a.java

@@ -0,0 +1,39 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+import kotlin.jvm.functions.Function1;
+
+/* loaded from: classes3.dex */
+public final /* synthetic */ class a implements Comparator {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f7113a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final /* synthetic */ Object f7114b;
+
+    public /* synthetic */ a(Object obj, int i) {
+        this.f7113a = i;
+        this.f7114b = obj;
+    }
+
+    @Override // java.util.Comparator
+    public final int compare(Object obj, Object obj2) {
+        int nullsLast$lambda$4$ComparisonsKt__ComparisonsKt;
+        int nullsFirst$lambda$3$ComparisonsKt__ComparisonsKt;
+        int compareBy$lambda$0$ComparisonsKt__ComparisonsKt;
+        int i = this.f7113a;
+        Object obj3 = this.f7114b;
+        switch (i) {
+            case 0:
+                nullsLast$lambda$4$ComparisonsKt__ComparisonsKt = ComparisonsKt__ComparisonsKt.nullsLast$lambda$4$ComparisonsKt__ComparisonsKt((Comparator) obj3, obj, obj2);
+                return nullsLast$lambda$4$ComparisonsKt__ComparisonsKt;
+            case 1:
+                nullsFirst$lambda$3$ComparisonsKt__ComparisonsKt = ComparisonsKt__ComparisonsKt.nullsFirst$lambda$3$ComparisonsKt__ComparisonsKt((Comparator) obj3, obj, obj2);
+                return nullsFirst$lambda$3$ComparisonsKt__ComparisonsKt;
+            default:
+                compareBy$lambda$0$ComparisonsKt__ComparisonsKt = ComparisonsKt__ComparisonsKt.compareBy$lambda$0$ComparisonsKt__ComparisonsKt((Function1[]) obj3, obj, obj2);
+                return compareBy$lambda$0$ComparisonsKt__ComparisonsKt;
+        }
+    }
+}

apk_decompiled/sources/kotlin/comparisons/b.java

@@ -0,0 +1,32 @@
+package kotlin.comparisons;
+
+import java.util.Comparator;
+
+/* loaded from: classes3.dex */
+public final /* synthetic */ class b implements Comparator {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f7115a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final /* synthetic */ Comparator f7116b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final /* synthetic */ Comparator f7117c;
+
+    public /* synthetic */ b(Comparator comparator, Comparator comparator2, int i) {
+        this.f7115a = i;
+        this.f7116b = comparator;
+        this.f7117c = comparator2;
+    }
+
+    @Override // java.util.Comparator
+    public final int compare(Object obj, Object obj2) {
+        switch (this.f7115a) {
+            case 0:
+                return ComparisonsKt__ComparisonsKt.b(this.f7116b, this.f7117c, obj, obj2);
+            default:
+                return ComparisonsKt__ComparisonsKt.d(this.f7116b, this.f7117c, obj, obj2);
+        }
+    }
+}