diff --git a/testing/simapp/app.go b/testing/simapp/app.go
index b2e17de7232..6d454eefcb8 100644
--- a/testing/simapp/app.go
+++ b/testing/simapp/app.go
@@ -21,6 +21,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/grpc/tmservice"
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/codec/types"
+	"github.com/cosmos/cosmos-sdk/runtime"
 	runtimeservices "github.com/cosmos/cosmos-sdk/runtime/services"
 	"github.com/cosmos/cosmos-sdk/server/api"
 	"github.com/cosmos/cosmos-sdk/server/config"
@@ -189,7 +190,7 @@ var (
 )
 
 var (
-	_ App                     = (*SimApp)(nil)
+	_ runtime.AppI            = (*SimApp)(nil)
 	_ servertypes.Application = (*SimApp)(nil)
 )
 
diff --git a/testing/simapp/export.go b/testing/simapp/export.go
index 8515cc0f43f..444c21c706e 100644
--- a/testing/simapp/export.go
+++ b/testing/simapp/export.go
@@ -15,7 +15,7 @@ import (
 // ExportAppStateAndValidators exports the state of the application for a genesis
 // file.
 func (app *SimApp) ExportAppStateAndValidators(
-	forZeroHeight bool, jailAllowedAddrs []string,
+	forZeroHeight bool, jailAllowedAddrs []string, modulesToExport []string,
 ) (servertypes.ExportedApp, error) {
 	// as if they could withdraw from the start of the next block
 	ctx := app.NewContext(true, tmproto.Header{Height: app.LastBlockHeight()})
diff --git a/testing/simapp/sim_test.go b/testing/simapp/sim_test.go
index 213eb6738db..5da83481f00 100644
--- a/testing/simapp/sim_test.go
+++ b/testing/simapp/sim_test.go
@@ -135,7 +135,7 @@ func TestAppImportExport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	exported, err := app.ExportAppStateAndValidators(false, []string{})
+	exported, err := app.ExportAppStateAndValidators(false, []string{}, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
@@ -240,7 +240,7 @@ func TestAppSimulationAfterImport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	exported, err := app.ExportAppStateAndValidators(true, []string{})
+	exported, err := app.ExportAppStateAndValidators(true, []string{}, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
diff --git a/testing/simapp/simd/cmd/root.go b/testing/simapp/simd/cmd/root.go
index 8115ad4bd83..09714b43f26 100644
--- a/testing/simapp/simd/cmd/root.go
+++ b/testing/simapp/simd/cmd/root.go
@@ -320,5 +320,5 @@ func (a appCreator) appExport(
 		simApp = simapp.NewSimApp(logger, db, traceStore, true, map[int64]bool{}, homePath, uint(1), a.encCfg, appOpts)
 	}
 
-	return simApp.ExportAppStateAndValidators(forZeroHeight, jailAllowedAddrs)
+	return simApp.ExportAppStateAndValidators(forZeroHeight, jailAllowedAddrs, modulesToExport)
 }
diff --git a/testing/simapp/types.go b/testing/simapp/types.go
deleted file mode 100644
index ae07721f297..00000000000
--- a/testing/simapp/types.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package simapp
-
-import (
-	abci "github.com/cometbft/cometbft/abci/types"
-	"github.com/cosmos/cosmos-sdk/codec"
-	"github.com/cosmos/cosmos-sdk/server/types"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/types/module"
-)
-
-// App implements the common methods for a Cosmos SDK-based application
-// specific blockchain.
-type App interface {
-	// The assigned name of the app.
-	Name() string
-
-	// The application types codec.
-	// NOTE: This shoult be sealed before being returned.
-	LegacyAmino() *codec.LegacyAmino
-
-	// Application updates every begin block.
-	BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock
-
-	// Application updates every end block.
-	EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock
-
-	// Application update at chain (i.e app) initialization.
-	InitChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain
-
-	// Loads the app at a given height.
-	LoadHeight(height int64) error
-
-	// Exports the state of the application for a genesis file.
-	ExportAppStateAndValidators(
-		forZeroHeight bool, jailAllowedAddrs []string,
-	) (types.ExportedApp, error)
-
-	// All the registered module account addreses.
-	ModuleAccountAddrs() map[string]bool
-
-	// Helper for the simulation framework.
-	SimulationManager() *module.SimulationManager
-}
diff --git a/testing/simapp/utils.go b/testing/simapp/utils.go
index 70b354e17ac..a9b6e40373f 100644
--- a/testing/simapp/utils.go
+++ b/testing/simapp/utils.go
@@ -8,6 +8,7 @@ import (
 	dbm "github.com/cometbft/cometbft-db"
 	"github.com/cometbft/cometbft/libs/log"
 	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/runtime"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/kv"
 	"github.com/cosmos/cosmos-sdk/types/module"
@@ -47,7 +48,7 @@ func SetupSimulation(dirPrefix, dbName string) (simtypes.Config, dbm.DB, string,
 
 // SimulationOperations retrieves the simulation params from the provided file path
 // and returns all the modules weighted operations
-func SimulationOperations(app App, cdc codec.JSONCodec, config simtypes.Config) []simtypes.WeightedOperation {
+func SimulationOperations(app runtime.AppI, cdc codec.JSONCodec, config simtypes.Config) []simtypes.WeightedOperation {
 	simState := module.SimulationState{
 		AppParams: make(simtypes.AppParams),
 		Cdc:       cdc,
@@ -73,11 +74,11 @@ func SimulationOperations(app App, cdc codec.JSONCodec, config simtypes.Config)
 // CheckExportSimulation exports the app state and simulation parameters to JSON
 // if the export paths are defined.
 func CheckExportSimulation(
-	app App, config simtypes.Config, params simtypes.Params,
+	app runtime.AppI, config simtypes.Config, params simtypes.Params,
 ) error {
 	if config.ExportStatePath != "" {
 		fmt.Println("exporting app state...")
-		exported, err := app.ExportAppStateAndValidators(false, nil)
+		exported, err := app.ExportAppStateAndValidators(false, nil, nil)
 		if err != nil {
 			return err
 		}