diff --git a/src/actions/app.ts b/src/actions/app.ts
index f6bda357..49c1d161 100644
--- a/src/actions/app.ts
+++ b/src/actions/app.ts
@@ -8,7 +8,7 @@ import { Action } from 'redux';
 /** App action types. */
 export enum AppActionType {
     /** The app has just ben started. */
-    Startup = 'app.action.startup',
+    DidStart = 'app.action.didStart',
     /** Open settings dialog. */
     OpenSettings = 'app.action.openSettings',
     /** Close settings dialog. */
@@ -24,11 +24,11 @@ export enum AppActionType {
 }
 
 /** Action that indicates the app has just started. */
-export type AppStartupAction = Action<AppActionType.Startup>;
+export type AppDidStartAction = Action<AppActionType.DidStart>;
 
 /** Creates an action that indicates the app has just started. */
-export function startup(): AppStartupAction {
-    return { type: AppActionType.Startup };
+export function didStart(): AppDidStartAction {
+    return { type: AppActionType.DidStart };
 }
 
 /** Action to open the settings dialog. */
@@ -81,7 +81,7 @@ export function closeLicenseDialog(): AppCloseLicenseDialogAction {
 
 /** common type for all app actions. */
 export type AppAction =
-    | AppStartupAction
+    | AppDidStartAction
     | AppOpenSettingsAction
     | AppCloseSettingsAction
     | AppOpenAboutDialogAction
diff --git a/src/sagas/index.ts b/src/sagas/index.ts
index fc2b5626..16e2a986 100644
--- a/src/sagas/index.ts
+++ b/src/sagas/index.ts
@@ -2,7 +2,7 @@
 // Copyright (c) 2020-2021 The Pybricks Authors
 
 import { all, put } from 'redux-saga/effects';
-import { startup } from '../actions/app';
+import { didStart } from '../actions/app';
 import bleUart from './ble-uart';
 import editor from './editor';
 import errorLog from './error-log';
@@ -31,6 +31,6 @@ export default function* (): Generator {
         notification(),
         settings(),
         terminal(),
-        put(startup()),
+        put(didStart()),
     ]);
 }
diff --git a/src/sagas/settings.test.ts b/src/sagas/settings.test.ts
index 5875b79f..6e0edb58 100644
--- a/src/sagas/settings.test.ts
+++ b/src/sagas/settings.test.ts
@@ -4,7 +4,7 @@
 // Tests for settings sagas.
 
 import { AsyncSaga } from '../../test';
-import { startup } from '../actions/app';
+import { didStart } from '../actions/app';
 import { didBooleanChange, didFailToSetBoolean, setBoolean } from '../actions/settings';
 import { SettingsState } from '../reducers/settings';
 import { SettingId } from '../settings/user';
@@ -25,7 +25,7 @@ describe('startup', () => {
             ).mockReturnValue(null);
             innerWidth = 1024;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
@@ -41,7 +41,7 @@ describe('startup', () => {
             ).mockReturnValue(null);
             innerWidth = 800;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
@@ -64,7 +64,7 @@ describe('startup', () => {
             });
             innerWidth = 1024;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
@@ -87,7 +87,7 @@ describe('startup', () => {
             });
             innerWidth = 800;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // requests documentation to be shown
             const action = await saga.take();
@@ -112,7 +112,7 @@ describe('startup', () => {
             });
             innerWidth = 1024;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // requests documentation to be hidden
             const action = await saga.take();
@@ -137,7 +137,7 @@ describe('startup', () => {
             });
             innerWidth = 800;
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
@@ -154,7 +154,7 @@ describe('startup', () => {
                 'getItem',
             ).mockReturnValue(null);
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
@@ -176,7 +176,7 @@ describe('startup', () => {
                 }
             });
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // requests to enable dark mode
             const action = await saga.take();
@@ -200,7 +200,7 @@ describe('startup', () => {
                 }
             });
 
-            saga.put(startup());
+            saga.put(didStart());
 
             // does nothing
 
diff --git a/src/sagas/settings.ts b/src/sagas/settings.ts
index 4a6dc695..b39411d6 100644
--- a/src/sagas/settings.ts
+++ b/src/sagas/settings.ts
@@ -101,6 +101,6 @@ function* storeSetting(action: SettingsSetBooleanAction): Generator {
 
 export default function* (): Generator {
     yield fork(monitorLocalStorage);
-    yield takeEvery(AppActionType.Startup, loadSettings);
+    yield takeEvery(AppActionType.DidStart, loadSettings);
     yield takeEvery(SettingsActionType.SetBoolean, storeSetting);
 }
diff --git a/src/sagas/terminal.test.ts b/src/sagas/terminal.test.ts
index 528e9d95..6673b7df 100644
--- a/src/sagas/terminal.test.ts
+++ b/src/sagas/terminal.test.ts
@@ -3,7 +3,7 @@
 
 import { AsyncSaga, delay } from '../../test';
 
-import { startup } from '../actions/app';
+import { didStart } from '../actions/app';
 import {
     BleUartActionType,
     BleUartWriteAction,
@@ -295,7 +295,7 @@ describe('Data receiver filters out hub status', () => {
 test('Terminal data source responds to send data actions', async () => {
     const saga = new AsyncSaga(terminal);
 
-    saga.put(startup());
+    saga.put(didStart());
     const dataSourceAction = await saga.take();
     expect(dataSourceAction.type).toBe(TerminalActionType.SetDataSource);
 
diff --git a/src/sagas/terminal.ts b/src/sagas/terminal.ts
index 790a7121..141ed9ec 100644
--- a/src/sagas/terminal.ts
+++ b/src/sagas/terminal.ts
@@ -14,7 +14,7 @@ import {
 } from 'redux-saga/effects';
 import PushStream from 'zen-push';
 import { Action } from '../actions';
-import { AppActionType, AppStartupAction } from '../actions/app';
+import { AppActionType, AppDidStartAction } from '../actions/app';
 import {
     BleUartActionType,
     BleUartNotifyAction,
@@ -36,7 +36,7 @@ const encoder = new TextEncoder();
 const decoder = new TextDecoder();
 const terminalDataSource = new PushStream<string>();
 
-function* startup(_action: AppStartupAction): Generator {
+function* startup(_action: AppDidStartAction): Generator {
     yield put(setDataSource(terminalDataSource.observable));
 }
 
@@ -146,7 +146,7 @@ function sendTerminalData(action: TerminalDataReceiveDataAction): void {
 }
 
 export default function* (): Generator {
-    yield takeEvery(AppActionType.Startup, startup);
+    yield takeEvery(AppActionType.DidStart, startup);
     yield takeEvery(BleUartActionType.Notify, receiveUartData);
     yield fork(receiveTerminalData);
     yield takeEvery(TerminalActionType.SendData, sendTerminalData);