How does app cache work in FlutterFlow and how can I clear it inside the app?

I’m facing an issue with cache accumulation in my FlutterFlow app.

Here’s the context:

I only use Firebase for photo uploads.
For my main database, I integrate with Bubble via a custom API (not Firebase Firestore/RTDB).
When users upload photos, I first convert them to base64 using Upload/Save Media, then I call my API.
After sending the data, I use “Clear Uploaded Data” to release the temporary images.

Even with this workflow, the app seems to accumulate cache over time.

My questions are:

How does FlutterFlow handle cache storage under the hood (for images, API data, etc.)?
Is there a way to programmatically clear the app cache from inside the app (via custom action or Dart code), instead of asking users to manually go to device settings → Clear Cache?

My goal is to give users a button or an in-app action that behaves the same as the Clear Cache option in Android/iOS app settings.

Has anyone run into this and found a solution or workaround?

Future<String> clearAppCaches( bool clearSharedPrefs, bool clearSupportDirs, ) async { int deletedFiles = 0; int deletedDirs = 0; Future<void> _deleteDirContents(Directory dir) async { if (!await dir.exists()) return; await for (final entity in dir.list(followLinks: false)) { try { if (entity is File) { await entity.delete(); deletedFiles++; } else if (entity is Directory) { await entity.delete(recursive: true); deletedDirs++; } } catch (e) { debugPrint('Falha ao deletar ${entity.path}: $e'); } } } try { try { PaintingBinding.instance.imageCache.clear(); PaintingBinding.instance.imageCache.clearLiveImages(); } catch (_) {} try { await DefaultCacheManager().emptyCache(); } catch (_) {} try { final tmpDir = await getTemporaryDirectory(); await _deleteDirContents(tmpDir); } catch (e) { debugPrint('Erro ao limpar getTemporaryDirectory: $e'); } return 'Cache limpo. Arquivos apagados: $deletedFiles, pastas: $deletedDirs' '${clearSharedPrefs ? ' (Prefs limpas)' : ''}' '${clearSupportDirs ? ' (Support/Docs limpos)' : ''}.'; } catch (e, s) { debugPrint('clearAppCaches error: $e\n$s'); return 'clearAppCaches error: $e\n$s'; } }