diff --git a/changelog.md b/changelog.md
index ae8c61bf7f..029baea432 100644
--- a/changelog.md
+++ b/changelog.md
@@ -5,8 +5,9 @@
 ### Fixes
 
 - [#3878](https://github.com/ignite/cli/pull/3878) Support local forks of Cosmos SDK in scaffolded chain.
-- [#3867](https://github.com/ignite/cli/pull/3867) Fix genesis export for ibc modules.
 - [#3869](https://github.com/ignite/cli/pull/3869) Fix .git in parent dir
+- [#3867](https://github.com/ignite/cli/pull/3867) Fix genesis export for ibc modules.
+- [#3850](https://github.com/ignite/cli/pull/3871) Fix app.go file detection in apps scaffolded before v28.0.0
 
 ### Changes
 
diff --git a/ignite/pkg/cosmosanalysis/cosmosanalysis.go b/ignite/pkg/cosmosanalysis/cosmosanalysis.go
index 470dbab256..868d5aa63a 100644
--- a/ignite/pkg/cosmosanalysis/cosmosanalysis.go
+++ b/ignite/pkg/cosmosanalysis/cosmosanalysis.go
@@ -27,7 +27,6 @@ var AppImplementation = []string{
 	"AppCodec",
 	"GetKey",
 	"GetMemKey",
-	"kvStoreKeys",
 	"RegisterAPIRoutes",
 }
 
diff --git a/ignite/pkg/cosmosanalysis/cosmosanalysis_test.go b/ignite/pkg/cosmosanalysis/cosmosanalysis_test.go
index 8b3fbae93a..ae6f8c24c4 100644
--- a/ignite/pkg/cosmosanalysis/cosmosanalysis_test.go
+++ b/ignite/pkg/cosmosanalysis/cosmosanalysis_test.go
@@ -108,6 +108,24 @@ func (app *App) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.R
 func (app *App) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
 	return app.mm.EndBlock(ctx, req)
 }
+`)
+	appFileSDKv47 = []byte(`
+package app
+type App struct {}
+func (app *App) Name() string { return app.BaseApp.Name() }
+func (app *App) RegisterAPIRoutes()                                   {}
+func (app *App) RegisterTxService()                                   {}
+func (app *App) AppCodec() codec.Codec                                { return app.appCodec }
+func (app *App) GetKey(storeKey string) *storetypes.KVStoreKey        { return nil }
+func (app *App) GetMemKey(storeKey string) *storetypes.MemoryStoreKey { return nil }
+func (app *App) GetSubspace(moduleName string) paramstypes.Subspace   { return subspace }
+func (app *App) TxConfig() client.TxConfig                       { return nil }
+func (app *App) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
+	return app.mm.BeginBlock(ctx, req)
+}
+func (app *App) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
+	return app.mm.EndBlock(ctx, req)
+}
 `)
 )
 
@@ -177,50 +195,62 @@ func TestFindImplementationNotFound(t *testing.T) {
 }
 
 func TestFindAppFilePath(t *testing.T) {
-	tmpDir := t.TempDir()
+	tmpDir1 := t.TempDir()
+	tmpDir2 := t.TempDir()
 
-	appFolder := filepath.Join(tmpDir, "app")
-	secondaryAppFolder := filepath.Join(tmpDir, "myOwnAppDir")
-	err := os.Mkdir(appFolder, 0o700)
+	appFolder1 := filepath.Join(tmpDir1, "app")
+	appFolder2 := filepath.Join(tmpDir1, "myOwnAppDir")
+	appFolder3 := filepath.Join(tmpDir2, "sdk47AppDir")
+	err := os.Mkdir(appFolder1, 0o700)
+	require.NoError(t, err)
+	err = os.Mkdir(appFolder2, 0o700)
 	require.NoError(t, err)
-	err = os.Mkdir(secondaryAppFolder, 0o700)
+	err = os.Mkdir(appFolder3, 0o700)
 	require.NoError(t, err)
 
 	// No file
-	_, err = cosmosanalysis.FindAppFilePath(tmpDir)
+	_, err = cosmosanalysis.FindAppFilePath(tmpDir1)
 	require.Equal(t, "app.go file cannot be found", err.Error())
 
 	// Only one file with app implementation
-	myOwnAppFilePath := filepath.Join(secondaryAppFolder, "my_own_app.go")
+	myOwnAppFilePath := filepath.Join(appFolder2, "my_own_app.go")
 	err = os.WriteFile(myOwnAppFilePath, appFile, 0o644)
 	require.NoError(t, err)
-	pathFound, err := cosmosanalysis.FindAppFilePath(tmpDir)
+	pathFound, err := cosmosanalysis.FindAppFilePath(tmpDir1)
 	require.NoError(t, err)
 	require.Equal(t, myOwnAppFilePath, pathFound)
 
 	// With a test file added
-	appTestFilePath := filepath.Join(secondaryAppFolder, "my_own_app_test.go")
+	appTestFilePath := filepath.Join(appFolder2, "my_own_app_test.go")
 	err = os.WriteFile(appTestFilePath, appTestFile, 0o644)
 	require.NoError(t, err)
-	_, err = cosmosanalysis.FindAppFilePath(tmpDir)
+	_, err = cosmosanalysis.FindAppFilePath(tmpDir1)
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "cannot locate your app.go")
 
 	// With an additional app file (that is app.go)
-	appFilePath := filepath.Join(appFolder, "app.go")
+	appFilePath := filepath.Join(appFolder1, "app.go")
 	err = os.WriteFile(appFilePath, appFile, 0o644)
 	require.NoError(t, err)
-	pathFound, err = cosmosanalysis.FindAppFilePath(tmpDir)
+	pathFound, err = cosmosanalysis.FindAppFilePath(tmpDir1)
 	require.NoError(t, err)
 	require.Equal(t, appFilePath, pathFound)
 
 	// With two app.go files
-	extraAppFilePath := filepath.Join(secondaryAppFolder, "app.go")
+	extraAppFilePath := filepath.Join(appFolder2, "app.go")
 	err = os.WriteFile(extraAppFilePath, appFile, 0o644)
 	require.NoError(t, err)
-	pathFound, err = cosmosanalysis.FindAppFilePath(tmpDir)
+	pathFound, err = cosmosanalysis.FindAppFilePath(tmpDir1)
+	require.NoError(t, err)
+	require.Equal(t, filepath.Join(appFolder1, "app.go"), pathFound)
+
+	// With an app.go file from a Cosmos SDK v0.47 app
+	sdk47AppFilePath := filepath.Join(appFolder3, "app_sdk_47.go")
+	err = os.WriteFile(sdk47AppFilePath, appFileSDKv47, 0o644)
+	require.NoError(t, err)
+	pathFound, err = cosmosanalysis.FindAppFilePath(tmpDir2)
 	require.NoError(t, err)
-	require.Equal(t, filepath.Join(appFolder, "app.go"), pathFound)
+	require.Equal(t, sdk47AppFilePath, pathFound)
 }
 
 func TestIsChainPath(t *testing.T) {