diff --git a/locales/en.json b/locales/en.json
index 3240cffe7..e180bf828 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -27,6 +27,11 @@
     "app_make_default_location_already_used": "Can't make the app '{app}' the default on the domain, '{domain}' is already in use by the other app '{other_app}'",
     "app_location_unavailable": "This URL is either unavailable, or conflicts with the already installed app(s):\n{apps:s}",
     "app_manifest_invalid": "Something is wrong with the app manifest: {error}",
+    "app_manifest_install_ask_domain": "Choose the domain where this app should be installed",
+    "app_manifest_install_ask_path": "Choose the path where this app should be installed",
+    "app_manifest_install_ask_password": "Choose an administration password for this app",
+    "app_manifest_install_ask_admin": "Choose an administrator user for this app",
+    "app_manifest_install_ask_is_public": "Should this app be exposed to anonymous visitors?",
     "app_not_upgraded": "The app '{failed_app}' failed to upgrade, and as a consequence the following apps' upgrades have been cancelled: {apps}",
     "app_not_correctly_installed": "{app:s} seems to be incorrectly installed",
     "app_not_installed": "Could not find {app:s} in the list of installed apps: {all_apps}",
diff --git a/src/yunohost/app.py b/src/yunohost/app.py
index 27a8ad724..eb30f796b 100644
--- a/src/yunohost/app.py
+++ b/src/yunohost/app.py
@@ -90,6 +90,8 @@ def app_catalog(full=False, with_categories=False):
                 "description": infos['manifest']['description'],
                 "level": infos["level"],
             }
+        else:
+            infos["manifest"]["arguments"] = _set_default_ask_questions(infos["manifest"]["arguments"])
 
     # Trim info for categories if not using --full
     for category in catalog["categories"]:
@@ -109,7 +111,6 @@ def app_catalog(full=False, with_categories=False):
         return {"apps": catalog["apps"], "categories": catalog["categories"]}
 
 
-
 # Old legacy function...
 def app_fetchlist():
     logger.warning("'yunohost app fetchlist' is deprecated. Please use 'yunohost tools update --apps' instead")
@@ -169,6 +170,7 @@ def app_info(app, full=False):
         return ret
 
     ret["manifest"] = local_manifest
+    ret["manifest"]["arguments"] = _set_default_ask_questions(ret["manifest"]["arguments"])
     ret['settings'] = settings
 
     absolute_app_name, _ = _parse_app_instance_name(app)
@@ -2094,12 +2096,62 @@ def _get_manifest_of_app(path):
 
         manifest["arguments"]["install"] = install_arguments
 
-        return manifest
     elif os.path.exists(os.path.join(path, "manifest.json")):
-        return read_json(os.path.join(path, "manifest.json"))
+        manifest = read_json(os.path.join(path, "manifest.json"))
     else:
         raise YunohostError("There doesn't seem to be any manifest file in %s ... It looks like an app was not correctly installed/removed." % path, raw_msg=True)
 
+    manifest["arguments"] = _set_default_ask_questions(manifest["arguments"])
+    return manifest
+
+
+def _set_default_ask_questions(arguments):
+
+    # arguments is something like
+    # { "install": [
+    #       { "name": "domain",
+    #         "type": "domain",
+    #         ....
+    #       },
+    #       { "name": "path",
+    #         "type": "path"
+    #         ...
+    #       },
+    #       ...
+    #   ],
+    #  "upgrade": [ ... ]
+    # }
+
+    # We set a default for any question with these matching (type, name)
+    #                           type       namei
+    # N.B. : this is only for install script ... should be reworked for other
+    # scripts if we supports args for other scripts in the future...
+    questions_with_default = [("domain", "domain"),      # i18n: app_manifest_install_ask_domain
+                              ("path", "path"),          # i18n: app_manifest_install_ask_path
+                              ("password", "password"),  # i18n: app_manifest_install_ask_password
+                              ("user", "admin"),         # i18n: app_manifest_install_ask_admin
+                              ("boolean", "is_public")]  # i18n: app_manifest_install_ask_is_public
+
+    for script_name, arg_list in arguments.items():
+
+        # We only support questions for install so far, and for other
+        if script_name != "install":
+            continue
+
+        for arg in arg_list:
+
+            # Do not override 'ask' field if provided by app ?... Or shall we ?
+            # if "ask" in arg:
+            #    continue
+
+            # If this arg corresponds to a question with default ask message...
+            if any((arg.get("type"), arg["name"]) == question for question in questions_with_default):
+                # The key is for example "app_manifest_install_ask_domain"
+                key = "app_manifest_%s_ask_%s" % (script_name, arg["name"])
+                arg["ask"] = m18n.n(key)
+
+    return arguments
+
 
 def _get_git_last_commit_hash(repository, reference='HEAD'):
     """
diff --git a/tests/test_i18n_keys.py b/tests/test_i18n_keys.py
index 874794e11..799db3de2 100644
--- a/tests/test_i18n_keys.py
+++ b/tests/test_i18n_keys.py
@@ -23,8 +23,10 @@ def find_expected_string_keys():
     # Try to find :
     #    m18n.n(   "foo"
     #    YunohostError("foo"
+    #    # i18n: foo
     p1 = re.compile(r'm18n\.n\(\s*[\"\'](\w+)[\"\']')
     p2 = re.compile(r'YunohostError\([\'\"](\w+)[\'\"]')
+    p3 = re.compile(r'# i18n: [\'\"]?(\w+)[\'\"]?')
 
     python_files = glob.glob("src/yunohost/*.py")
     python_files.extend(glob.glob("src/yunohost/utils/*.py"))
@@ -42,6 +44,8 @@ def find_expected_string_keys():
             if m.endswith("_"):
                 continue
             yield m
+        for m in p3.findall(content):
+            yield m
 
     # For each diagnosis, try to find strings like "diagnosis_stuff_foo" (c.f. diagnosis summaries)
     # Also we expect to have "diagnosis_description_<name>" for each diagnosis