diff --git a/classes/completion/chat.php b/classes/completion/chat.php
index 99b20ad..d107cd1 100755
--- a/classes/completion/chat.php
+++ b/classes/completion/chat.php
@@ -27,6 +27,8 @@
 use block_openai_chat\completion;
 defined('MOODLE_INTERNAL') || die;
 
+require_once($CFG->libdir.'/filelib.php');
+
 class chat extends \block_openai_chat\completion {
 
     public function __construct($model, $message, $history, $block_settings, $thread_id = null) {
diff --git a/classes/external/answer.php b/classes/external/answer.php
new file mode 100644
index 0000000..81ca09d
--- /dev/null
+++ b/classes/external/answer.php
@@ -0,0 +1,147 @@
+<?php
+
+namespace block_openai_chat\external;
+
+use core_external\external_api;
+use core_external\external_function_parameters;
+use core_external\external_multiple_structure;
+use core_external\external_value;
+
+/**
+ * External API class.
+ *
+ * @package    block_recentlyaccesseditems
+ * @copyright  2018 Victor Deniz <victor@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class answer extends external_api {
+
+    /**
+     * Returns description of method parameters
+     * @return external_function_parameters
+     */
+    public static function execute_parameters() {
+        return new external_function_parameters(
+                array(
+                    'contextid' => new external_value(PARAM_INT, 'the context of the block', VALUE_REQUIRED),
+                    'message' => new external_value(PARAM_RAW, 'The message from user', VALUE_REQUIRED),
+                )
+        );
+    }
+
+    /**
+     * Get last accessed items by the logged user (activities or resources).
+     *
+     * @param  int $contextid Context Id of the block
+     * @param  string $message Message from user
+     * @return array List of items
+     */
+    public static function execute(int $contextid, string $message) {
+        global $DB;
+
+        // Parameter validation.
+        [
+            'contextid' => $contextid,
+            'message' => $message,
+        ] = self::validate_parameters(self::execute_parameters(), [
+            'contextid' => $contextid,
+            'message' => $message,
+        ]);
+        // Context validation and permission check.
+        // Get the context from the passed in ID.
+        $context = \context::instance_by_id($contextid);
+
+        // Check the user has permission to use the AI service.
+        self::validate_context($context);
+
+        $instance_record = $DB->get_record('block_instances', ['blockname' => 'openai_chat', 'id' => $context->instanceid], '*');
+        $instance = block_instance('openai_chat', $instance_record);
+
+        $block_settings = [];
+        $setting_names = [
+            'sourceoftruth', 
+            'prompt',
+            'instructions',
+            'username', 
+            'assistantname', 
+            'apikey', 
+            'model', 
+            'temperature', 
+            'maxlength', 
+            'topp', 
+            'frequency', 
+            'presence',
+            'assistant'
+        ];
+        foreach ($setting_names as $setting) {
+            if ($instance->config && property_exists($instance->config, $setting)) {
+                $block_settings[$setting] = $instance->config->$setting ? $instance->config->$setting : "";
+            } else {
+                $block_settings[$setting] = "";
+            }
+        }
+
+        $engine_class;
+        $model = get_config('block_openai_chat', 'model');
+        $api_type = get_config('block_openai_chat', 'type');
+        $engine_class = "\block_openai_chat\completion\\$api_type";
+
+        $completion = new $engine_class(...[$model, $message, $history, $block_settings, $thread_id]);
+        $response = $completion->create_completion($context);
+
+        // Format the markdown of each completion message into HTML.
+        $response = format_text($response["message"], FORMAT_MARKDOWN, ['context' => $context]);
+
+        // Return the response.
+        return [
+            'success' => true, // TODO
+            'generatedcontent' => $response,
+            'finishreason' => '', // TODO
+            'error' => '', // TODO
+            'timecreated' => 0, // TODO
+            'message' => $message,
+        ];
+    }
+
+    /**
+     * Generate content return value.
+     *
+     * @return external_function_parameters
+     */
+    public static function execute_returns(): external_function_parameters {
+        return new external_function_parameters([
+            'success' => new external_value(
+                PARAM_BOOL,
+                'Was the request successful',
+                VALUE_REQUIRED
+            ),
+            'timecreated' => new external_value(
+                PARAM_INT,
+                'The time the request was created',
+                VALUE_REQUIRED,
+            ),
+            'message' => new external_value(
+                PARAM_RAW,
+                'The prompt text for the AI service',
+                VALUE_REQUIRED,
+            ),
+            'generatedcontent' => new external_value(
+                PARAM_RAW,
+                'The text generated by AI.',
+                VALUE_DEFAULT,
+            ),
+            'finishreason' => new external_value(
+                PARAM_ALPHA,
+                'The reason generation was stopped',
+                VALUE_DEFAULT,
+                'stop',
+            ),
+            'error' => new external_value(
+                PARAM_TEXT,
+                'Error message if any',
+                VALUE_DEFAULT,
+                '',
+            ),
+        ]);
+    }
+}
diff --git a/classes/output/mobile.php b/classes/output/mobile.php
new file mode 100644
index 0000000..3264f33
--- /dev/null
+++ b/classes/output/mobile.php
@@ -0,0 +1,103 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace block_openai_chat\output;
+
+use context_course;
+
+/**
+ * Callbacks class for mobile app.
+ *
+ * @package     block_openai_chat
+ * @copyright   2025 Daniel Neis Araujo
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class mobile {
+
+    /**
+     * Callback to render the block contents on mobile app.
+     * @param array $args Data provided by standard CoreBlockDelegate.
+     */
+    public static function get_block_content($args) {
+        global $CFG, $DB, $OUTPUT;
+
+        $context = \core\context\block::instance($args['blockid']);
+
+        $config = get_config('block_openai_chat');
+
+        $persistconvo = get_config('block_openai_chat', 'persistconvo');
+        if (!empty($config)) {
+            $persistconvo = (property_exists($config, 'persistconvo') && get_config('block_openai_chat', 'allowinstancesettings')) ? $config->persistconvo : $persistconvo;
+        }
+
+        // Determine if name labels should be shown.
+        $showlabelscss = '';
+        if (!empty($config) && empty($config->showlabels)) {
+            $showlabelscss = '
+                .openai_message:before {
+                    display: none;
+                }
+                .openai_message {
+                    margin-bottom: 0.5rem;
+                }
+            ';
+        }
+
+        // First, fetch the global settings for these (and the defaults if not set)
+        $assistantname = get_config('block_openai_chat', 'assistantname') ? get_config('block_openai_chat', 'assistantname') : get_string('defaultassistantname', 'block_openai_chat');
+        $username = get_config('block_openai_chat', 'username') ? get_config('block_openai_chat', 'username') : get_string('defaultusername', 'block_openai_chat');
+
+        $title = get_string('openai_chat', 'block_openai_chat');
+        $configdata = $DB->get_field('block_instances', 'configdata', ['id' => $context->instanceid]);
+        if (!empty($configdata)) {
+            $cfg = base64_decode($configdata);
+            $cfg = unserialize_object($cfg);
+            if (!empty($cfg->title)) {
+                $title = $cfg->title;
+            }
+        }
+
+        // Then, override with local settings if available
+        if (!empty($config)) {
+            $assistantname = (property_exists($config, 'assistantname') && $config->assistantname) ? $config->assistantname : $assistantname;
+            $username = (property_exists($config, 'username') && $config->username) ? $config->username : $username;
+        }
+        $assistantname = format_string($assistantname, true, ['context' => $context]);
+        $username = format_string($username, true, ['context' => $context]);
+
+        $contextdata = [
+            'logging_enabled' => get_config('block_openai_chat', 'logging'),
+            'pix_popout' => '/blocks/openai_chat/pix/arrow-up-right-from-square.svg',
+            'pix_arrow_right' => '/blocks/openai_chat/pix/arrow-right.svg',
+            'pix_refresh' => '/blocks/openai_chat/pix/refresh.svg',
+            'username' => $username,
+            'assistantname' => $assistantname,
+            'showlabelscss' => $showlabelscss,
+            'contextid' => $context->id,
+            'title' => $title,
+        ];
+
+        return [
+            'templates' => [
+                [
+                    'id' => 'main',
+                    'html' => $OUTPUT->render_from_template('block_openai_chat/mobile', $contextdata)
+                ]
+            ],
+            'javascript' => file_get_contents("{$CFG->dirroot}/blocks/openai_chat/mobile.js")
+        ];
+    }
+}
diff --git a/db/mobile.php b/db/mobile.php
new file mode 100644
index 0000000..d69a212
--- /dev/null
+++ b/db/mobile.php
@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.
+
+/**
+ * Mobile App addons definition.
+ *
+ * @package     block_openai_chat
+ * @copyright   2025 Daniel Neis Araujo
+ * @license     https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+global $CFG;
+
+$addons = [
+    'block_openai_chat' => [
+        'handlers' => [
+            'completionlevels' => [
+                'delegate' => 'CoreBlockDelegate',
+                'method' => 'get_block_content',
+                'displaydata' => [
+                    'class' => 'block block_openai_chat',
+                ],
+                'styles' => [
+                    'url' => $CFG->wwwroot . '/blocks/openai_chat/styles.css',
+                    'version' => 11,
+                ],
+            ],
+        ],
+        'lang' => [
+                [ 'pluginname', 'block_openai_chat' ],
+        ],
+    ],
+];
diff --git a/db/services.php b/db/services.php
new file mode 100644
index 0000000..71f7ac7
--- /dev/null
+++ b/db/services.php
@@ -0,0 +1,37 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * File description.
+ *
+ * @package   block_openai_chat
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$functions = array(
+
+    'block_openai_chat_answer' => array(
+        'classpath'   => 'blocks/openai_chat/classes/external/answer.php',
+        'classname'   => 'block_openai_chat\external\answer',
+        'methodname'  => 'execute',
+        'description' => 'Get answer.',
+        'type'        => 'read',
+        'ajax'        => true,
+        'services' => array(MOODLE_OFFICIAL_MOBILE_SERVICE),
+    ),
+);
diff --git a/mobile.js b/mobile.js
new file mode 100644
index 0000000..c0559f1
--- /dev/null
+++ b/mobile.js
@@ -0,0 +1,39 @@
+this.answer = function(result) {
+    var msg = '';
+    if (result.error == "") {
+        msg = result.generatedcontent;
+    } else {
+        msg = 'error: ' + result.error;
+    }
+    this.update_history(msg);
+};
+
+this.update_history = function(msg) {
+    let question = document.getElementById('openai_input').value;
+    if (question == '') {
+    } else {
+        document.getElementById('openai_input').value = '';
+        document.getElementById('openai_chat_log').insertAdjacentHTML(
+             'beforeend',
+             '<div class="openai_message user"><span>' + question + '</span></div>' +
+             '<ion-item class="chat-loading">' +
+                 '<ion-spinner name="crescent"></ion-spinner>' +
+             '</ion-item>'
+        );
+        let lq = document.querySelector('#openai_chat_log > :last-child');
+        let container = document.querySelector('#openai_chat_log');
+        container.scrollTop = lq.offsetTop;
+    }
+    let assistantname = document.getElementById('openai_assistantname');
+    let newHtml = '<span style="color: gray; margin-bottom: .2em">' + assistantname.innerHTML + '</span><div class="openai_message bot"><span><p>' + msg + '</p></span></div>';
+
+    document.querySelector('.chat-loading').remove();
+    document.getElementById('openai_chat_log').insertAdjacentHTML('beforeend', newHtml);
+
+    let container = document.querySelector('#openai_chat_log');
+    let lastMessage = document.querySelector('#openai_chat_log div:last-child');
+    container.scrollTop = lastMessage.offsetTop;
+};
+document.querySelector(`.block_openai_chat #refresh`).addEventListener('click', e => {
+    document.querySelector(`#openai_chat_log`).innerHTML = ""
+})
diff --git a/styles.css b/styles.css
index 65bacc0..5e68cd6 100755
--- a/styles.css
+++ b/styles.css
@@ -28,7 +28,8 @@
     filter: brightness(0.8);
 }
 
-.block_openai_chat #control_bar #go {
+.block_openai_chat #control_bar #go,
+#control_bar #go button.button-native {
     border-radius: 0 0.5rem 0.5rem 0;
 }
 
@@ -92,6 +93,10 @@
     transition: background 0.4s ease;
 }
 
+ng-component textarea#openai_input {
+    height: 1em;
+}
+
 .block_openai_chat #openai_input.error {
     border: 1px solid red;
 }
@@ -131,6 +136,11 @@
     color: var(--white);
 }
 
+ion-card.block_openai_chat .openai_message.bot {
+    background-color: #0f6cbf !important;
+    color: white !important;
+}
+
 .block_openai_chat .openai_message.loading {
     animation: block_openai_chat_thinking 1s ease infinite;
 }
diff --git a/templates/mobile.mustache b/templates/mobile.mustache
new file mode 100644
index 0000000..2e7426c
--- /dev/null
+++ b/templates/mobile.mustache
@@ -0,0 +1,61 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template block_openai_chat/mobile
+
+    This template renders the block on mobile.
+
+    Example context (json):
+    {
+        "logging_enabled": boolean, true if logging is enabled in the plugin settings
+        "pix_popout": relative url of the popout pix to the root of moodle
+        "pix_arrow_right": relative url of the arrow right pix to the root of moodle
+        "pix_refresh": relative url of the refresh pix to the root of moodle
+    }
+}}
+{{=<% %>=}}
+<div style="padding: 0 0.5em 0.5em 0.5em">
+<h3><% title %></h3>
+<div id="openai_chat_log" role="log"></div>
+<div id="control_bar">
+    <div class="openai_input_bar" id="input_bar">
+        <textarea 
+            style="background-color: white; color: black;"
+            aria-label="<%#str%>askaquestion, block_openai_chat<%/str%>"
+            rows=1 id="openai_input" placeholder="<%#str%>askaquestion, block_openai_chat<%/str%>"
+            type="text" name="message"
+            core-auto-rows
+            [(ngModel)]="CONTENT_OTHERDATA.message"></textarea>
+
+        <ion-button id="go" style="width: 1em; height: 1em; margin: 0;"
+            core-site-plugins-call-ws
+            name="block_openai_chat_answer"
+            component="block_openai_chat" method="answer" samePage="true" showError="false"
+            [params]="{contextid: <% contextid %>}"
+            (onSuccess)="this.answer($event)"
+            (onError)="this.answer($event)"
+            [useOtherDataForWS]="['message']"
+            ><img style="transform: scale(1.3)" src="<%config.wwwroot%><% pix_arrow_right %>" alt="<%#str%>askaquestion, block_openai_chat<%/str%>" class='openai_input_submit_btn_icon'>
+        </ion-button>
+    </div>
+    <ion-button class='openai_input_refresh_btn' style="width: 1em; height: 1em; margin: 0;" color="secondary"
+        title="<%#str%>new_chat, block_openai_chat <%/str%>" id="refresh">
+        <img style="transform: scale(1.3)" src="<%config.wwwroot%><% pix_refresh %>" class='openai_input_refresh_btn_icon' alt="<%#str%>new_chat, block_openai_chat <%/str%>" />
+    </ion-button>
+</div>
+<span style="display: none" id="openai_assistantname"><% assistantname %></span>
+</div>
diff --git a/version.php b/version.php
index 9deb834..5c3876e 100755
--- a/version.php
+++ b/version.php
@@ -25,7 +25,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'block_openai_chat';
-$plugin->version = 2025021700;
+$plugin->version = 2025091800;
 $plugin->requires = 2022041600;
 $plugin->maturity = MATURITY_STABLE;
 $plugin->release = '3.0.1';