diff --git a/app/src/main/java/org/kiwix/kiwixmobile/KiwixBuildConfig.kt b/app/src/main/java/org/kiwix/kiwixmobile/KiwixBuildConfig.kt
deleted file mode 100644
index 6371781c2..000000000
--- a/app/src/main/java/org/kiwix/kiwixmobile/KiwixBuildConfig.kt
+++ /dev/null
@@ -1,7 +0,0 @@
-package org.kiwix.kiwixmobile
-
-import android.os.Build
-
-object KiwixBuildConfig {
-  val SDK_INT = Build.VERSION.SDK_INT
-}
diff --git a/app/src/main/java/org/kiwix/kiwixmobile/settings/StorageCalculator.kt b/app/src/main/java/org/kiwix/kiwixmobile/settings/StorageCalculator.kt
index 3c5952af5..3d136e8b7 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/settings/StorageCalculator.kt
+++ b/app/src/main/java/org/kiwix/kiwixmobile/settings/StorageCalculator.kt
@@ -1,10 +1,6 @@
 package org.kiwix.kiwixmobile.settings
 
-import android.annotation.SuppressLint
-import android.os.Build.VERSION_CODES
-import android.os.storage.StorageManager
 import eu.mhutti1.utils.storage.Bytes
-import org.kiwix.kiwixmobile.KiwixBuildConfig
 import java.io.File
 import javax.inject.Inject
 
@@ -25,7 +21,7 @@ import javax.inject.Inject
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-class StorageCalculator @Inject constructor(private val storageManager: StorageManager) {
+class StorageCalculator @Inject constructor() {
 
   fun calculateAvailableSpace(file: File): String =
     Bytes(availableBytes(file)).humanReadable
@@ -33,16 +29,9 @@ class StorageCalculator @Inject constructor(private val storageManager: StorageM
   fun calculateTotalSpace(file: File): String =
     Bytes(totalBytes(file)).humanReadable
 
-  @SuppressLint("NewApi")
   fun availableBytes(file: File) =
-    if (file.exists()) {
-      if (KiwixBuildConfig.SDK_INT >= VERSION_CODES.O)
-        storageManager.getAllocatableBytes(storageManager.getUuidForPath(file))
-      else
-        file.freeSpace
-    } else {
-      0L
-    }
+    if (file.exists()) file.freeSpace
+    else 0L
 
   private fun totalBytes(file: File) = if (file.exists()) file.totalSpace else 0L
 }
diff --git a/app/src/test/java/org/kiwix/kiwixmobile/settings/StorageCalculatorTest.kt b/app/src/test/java/org/kiwix/kiwixmobile/settings/StorageCalculatorTest.kt
index 0c86241a8..f70ae1957 100644
--- a/app/src/test/java/org/kiwix/kiwixmobile/settings/StorageCalculatorTest.kt
+++ b/app/src/test/java/org/kiwix/kiwixmobile/settings/StorageCalculatorTest.kt
@@ -18,29 +18,19 @@ package org.kiwix.kiwixmobile.settings
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-import android.os.storage.StorageManager
 import io.mockk.every
 import io.mockk.mockk
-import io.mockk.mockkObject
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
-import org.kiwix.kiwixmobile.KiwixBuildConfig
 import java.io.File
-import java.util.UUID
 
 internal class StorageCalculatorTest {
 
-  private val storageManager: StorageManager = mockk()
-  private val storageCalculator = StorageCalculator(storageManager)
+  private val storageCalculator = StorageCalculator()
   private val file: File = mockk()
 
-  init {
-    mockkObject(KiwixBuildConfig)
-  }
-
   @Test
   fun `calculate available space with existing file`() {
-    every { KiwixBuildConfig.SDK_INT } returns 25
     every { file.freeSpace } returns 1
     every { file.exists() } returns true
     assertThat(storageCalculator.calculateAvailableSpace(file)).isEqualTo("1 Bytes")
@@ -59,16 +49,6 @@ internal class StorageCalculatorTest {
     assertThat(storageCalculator.calculateTotalSpace(file)).isEqualTo("0 Bytes")
   }
 
-  @Test
-  fun `available bytes of existing file API 26`() {
-    val uuid: UUID = mockk()
-    every { KiwixBuildConfig.SDK_INT } returns 26
-    every { storageManager.getUuidForPath(file) } returns uuid
-    every { storageManager.getAllocatableBytes(uuid) } returns 1
-    every { file.exists() } returns true
-    assertThat(storageCalculator.availableBytes(file)).isEqualTo(1L)
-  }
-
   @Test
   fun `available bytes of non existing file`() {
     every { file.exists() } returns false