diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fb0f8dae47..1192cbb3728 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@
 
 * `Versions`:
     * `Coroutines`: `1.4.2` -> `1.4.3`
+* `Repos`:
+    * `Common`
+        * `Android`:
+            * New `blockingReadableTransaction`/`blockingWritableTransaction`
+                * Android databases realizations now use blocking transactions where it is possible
 
 ## 0.4.28
 
diff --git a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt
index 6d7821d20ca..b5ab920e1c1 100644
--- a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt
+++ b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt
@@ -32,7 +32,9 @@ private object ContextsPool {
 
     suspend fun <T> use(block: suspend (CoroutineContext) -> T): T = acquireContext().let {
         try {
-            block(it)
+            safely {
+                block(it)
+            }
         } finally {
             freeContext(it)
         }
@@ -48,11 +50,12 @@ class TransactionContext(
 }
 
 suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T): T {
-    return coroutineContext[TransactionContext] ?.let {
-        withContext(it.databaseContext) {
+    coroutineContext[TransactionContext] ?.let {
+        return withContext(it.databaseContext) {
             block()
         }
-    } ?: ContextsPool.use { context ->
+    }
+    return ContextsPool.use { context ->
         withContext(TransactionContext(context) + context) {
             beginTransaction()
             safely(
@@ -70,18 +73,18 @@ suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T
     }
 }
 
-inline fun <T> SQLiteDatabase.inlineTransaction(block: SQLiteDatabase.() -> T): T {
+inline fun <T> SQLiteDatabase.inlineTransaction(crossinline block: SQLiteDatabase.() -> T): T {
     return when {
         inTransaction() -> block()
         else -> {
             beginTransaction()
             try {
-                block().also {
-                    setTransactionSuccessful()
-                }
+                block().also { setTransactionSuccessful() }
             } finally {
                 endTransaction()
             }
         }
     }
 }
+
+fun <T> SQLiteDatabase.blockingTransaction(block: SQLiteDatabase.() -> T): T = inlineTransaction(block)
diff --git a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt
index 591778d2a87..8979680cefe 100644
--- a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt
+++ b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt
@@ -31,6 +31,20 @@ class StandardSQLHelper(
     suspend fun <T> readableTransaction(block: suspend SQLiteDatabase.() -> T): T = sqlOpenHelper.readableTransaction(block)
 }
 
+fun <T> SQLiteOpenHelper.blockingWritableTransaction(block: SQLiteDatabase.() -> T): T {
+    return writableDatabase.blockingTransaction(block)
+}
+fun <T> SQLiteOpenHelper.blockingReadableTransaction(block: SQLiteDatabase.() -> T): T {
+    return readableDatabase.blockingTransaction(block)
+}
+
+fun <T> StandardSQLHelper.blockingWritableTransaction(block: SQLiteDatabase.() -> T): T {
+    return sqlOpenHelper.blockingWritableTransaction(block)
+}
+fun <T> StandardSQLHelper.blockingReadableTransaction(block: SQLiteDatabase.() -> T): T {
+    return sqlOpenHelper.blockingReadableTransaction(block)
+}
+
 suspend fun <T> SQLiteOpenHelper.writableTransaction(block: suspend SQLiteDatabase.() -> T): T {
     return writableDatabase.transaction(block)
 }
diff --git a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt
index bd1109b71ea..64440100acf 100644
--- a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt
+++ b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt
@@ -20,7 +20,7 @@ abstract class AbstractAndroidCRUDRepo<ObjectType, IdType>(
         it.count
     }.toLong()
 
-    override suspend fun contains(id: IdType): Boolean = helper.readableTransaction {
+    override suspend fun contains(id: IdType): Boolean = helper.blockingReadableTransaction {
         select(
             tableName,
             null,
diff --git a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt
index 3da89678146..b433ecf9da5 100644
--- a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt
+++ b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt
@@ -19,9 +19,10 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
     protected abstract suspend fun InputValueType.asContentValues(id: IdType? = null): ContentValues
 
     override suspend fun create(values: List<InputValueType>): List<ObjectType> {
-        val indexes = helper.writableTransaction {
-            values.map {
-                insert(tableName, null, it.asContentValues())
+        val valuesContentValues = values.map { it.asContentValues() }
+        val indexes = helper.blockingWritableTransaction {
+            valuesContentValues.map {
+                insert(tableName, null, it)
             }
         }
         return helper.readableTransaction {
@@ -47,7 +48,7 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
 
     override suspend fun deleteById(ids: List<IdType>) {
         val deleted = mutableListOf<IdType>()
-        helper.writableTransaction {
+        helper.blockingWritableTransaction {
             ids.forEach { id ->
                 delete(tableName, "$idColumnName=?", arrayOf(id.asId)).also {
                     if (it > 0) {
@@ -64,7 +65,7 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
     override suspend fun update(id: IdType, value: InputValueType): ObjectType? {
         val asContentValues = value.asContentValues(id)
         if (asContentValues.keySet().isNotEmpty()) {
-            helper.writableTransaction {
+            helper.blockingWritableTransaction {
                 update(
                     tableName,
                     asContentValues,
@@ -79,11 +80,12 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
     }
 
     override suspend fun update(values: List<UpdatedValuePair<IdType, InputValueType>>): List<ObjectType> {
+        val contentValues = values.map { (id, value) -> id to value.asContentValues(id) }
         helper.writableTransaction {
-            values.forEach { (id, value) ->
+            contentValues.forEach { (id, contentValues) ->
                 update(
                     tableName,
-                    value.asContentValues(id),
+                    contentValues,
                     "$idColumnName=?",
                     arrayOf(id.asId)
                 )
@@ -98,5 +100,5 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
         }
     }
 
-    override suspend fun count(): Long = helper.readableTransaction { select(tableName).use { it.count.toLong() } }
+    override suspend fun count(): Long = helper.blockingReadableTransaction { select(tableName).use { it.count.toLong() } }
 }
\ No newline at end of file
diff --git a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt
index ffd6c20a45e..81c748b172e 100644
--- a/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt
+++ b/repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt
@@ -42,21 +42,19 @@ class OneToManyAndroidRepo<Key, Value>(
     private fun String.asKey(): Key = internalSerialFormat.decodeFromString(keySerializer, this)
 
     init {
-        runBlocking(DatabaseCoroutineContext) {
-            helper.writableTransaction {
-                createTable(
-                    tableName,
-                    internalId to internalIdType,
-                    idColumnName to ColumnType.Text.NOT_NULLABLE,
-                    valueColumnName to ColumnType.Text.NULLABLE
-                )
-            }
+        helper.blockingWritableTransaction {
+            createTable(
+                tableName,
+                internalId to internalIdType,
+                idColumnName to ColumnType.Text.NOT_NULLABLE,
+                valueColumnName to ColumnType.Text.NULLABLE
+            )
         }
     }
 
     override suspend fun add(toAdd: Map<Key, List<Value>>) {
         val added = mutableListOf<Pair<Key, Value>>()
-        helper.writableTransaction {
+        helper.blockingWritableTransaction {
             toAdd.forEach { (k, values) ->
                 values.forEach { v ->
                     insert(
@@ -78,7 +76,7 @@ class OneToManyAndroidRepo<Key, Value>(
     }
 
     override suspend fun clear(k: Key) {
-        helper.writableTransaction {
+        helper.blockingWritableTransaction {
             delete(tableName, "$idColumnName=?", arrayOf(k.asId()))
         }.also {
             if (it > 0) {
@@ -88,7 +86,7 @@ class OneToManyAndroidRepo<Key, Value>(
     }
 
     override suspend fun set(toSet: Map<Key, List<Value>>) {
-        val (clearedKeys, inserted) = helper.writableTransaction {
+        val (clearedKeys, inserted) = helper.blockingWritableTransaction {
             toSet.mapNotNull { (k, _) ->
                 if (delete(tableName, "$idColumnName=?", arrayOf(k.asId())) > 0) {
                     k
@@ -110,13 +108,13 @@ class OneToManyAndroidRepo<Key, Value>(
         inserted.forEach { newPair -> _onNewValue.emit(newPair) }
     }
 
-    override suspend fun contains(k: Key): Boolean = helper.readableTransaction {
+    override suspend fun contains(k: Key): Boolean = helper.blockingReadableTransaction {
         select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
             it.count > 0
         }
     }
 
-    override suspend fun contains(k: Key, v: Value): Boolean = helper.readableTransaction {
+    override suspend fun contains(k: Key, v: Value): Boolean = helper.blockingReadableTransaction {
         select(
             tableName,
             selection = "$idColumnName=? AND $valueColumnName=?",
@@ -127,7 +125,7 @@ class OneToManyAndroidRepo<Key, Value>(
         }
     }
 
-    override suspend fun count(): Long =helper.readableTransaction {
+    override suspend fun count(): Long =helper.blockingReadableTransaction {
         select(
             tableName
         ).use {
@@ -135,7 +133,7 @@ class OneToManyAndroidRepo<Key, Value>(
         }
     }.toLong()
 
-    override suspend fun count(k: Key): Long = helper.readableTransaction {
+    override suspend fun count(k: Key): Long = helper.blockingReadableTransaction {
         select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
             it.count
         }
@@ -147,7 +145,7 @@ class OneToManyAndroidRepo<Key, Value>(
         reversed: Boolean
     ): PaginationResult<Value> = count(k).let { count ->
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
-        helper.readableTransaction {
+        helper.blockingReadableTransaction {
             select(
                 tableName,
                 selection = "$idColumnName=?",
@@ -173,7 +171,7 @@ class OneToManyAndroidRepo<Key, Value>(
         reversed: Boolean
     ): PaginationResult<Key> = count().let { count ->
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
-        helper.readableTransaction {
+        helper.blockingReadableTransaction {
             select(
                 tableName,
                 limit = resultPagination.limitClause()
@@ -198,7 +196,7 @@ class OneToManyAndroidRepo<Key, Value>(
         reversed: Boolean
     ): PaginationResult<Key> = count().let { count ->
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
-        helper.readableTransaction {
+        helper.blockingReadableTransaction {
             select(
                 tableName,
                 selection = "$valueColumnName=?",
@@ -220,7 +218,7 @@ class OneToManyAndroidRepo<Key, Value>(
     }
 
     override suspend fun remove(toRemove: Map<Key, List<Value>>) {
-        helper.writableTransaction {
+        helper.blockingWritableTransaction {
             toRemove.flatMap { (k, vs) ->
                 vs.mapNotNullA { v ->
                     if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.asId(), v.asValue())) > 0) {