diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad89537c..ec1ca9b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,9 @@
 - **Bluesky**: Replaced `md5()` with `hash('sha256', ...)` for cache key generation
 - **XML namespaces**: Fixed 9 plugin manifests with `${CLASS_NAME}` placeholder instead of actual namespace (Discord, Facebook, LinkedIn, Mailchimp, Mastodon, Slack, Telegram, Twitter, Bluesky)
 
+### Added
+- **Default templates**: Added missing default message templates for 16 service types (activitypub, blogger, constantcontact, convertkit, devto, ghost, googlebusiness, googlechat, hashnode, matrix, nostr, tiktok, tumblr, whatsapp, mokosuitecalendar, mokosuitegallery) — all 36 services now have defaults
+
 ## [01.04.00] --- 2026-06-21
 
 ### Fixed
diff --git a/source/packages/com_mokosuitecross/sql/install.mysql.sql b/source/packages/com_mokosuitecross/sql/install.mysql.sql
index c89f0a9a..b566010e 100644
--- a/source/packages/com_mokosuitecross/sql/install.mysql.sql
+++ b/source/packages/com_mokosuitecross/sql/install.mysql.sql
@@ -92,7 +92,23 @@ INSERT INTO `#__mokosuitecross_templates` (`service_type`, `title`, `template_bo
 ('brevo', 'Brevo Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 17, NOW()),
 ('ntfy', 'Ntfy Default', '{title}: {introtext}', 1, 18, NOW()),
 ('reddit', 'Reddit Default', '{title}', 1, 19, NOW()),
-('pinterest', 'Pinterest Default', '{title} - {introtext}', 1, 20, NOW());
+('pinterest', 'Pinterest Default', '{title} - {introtext}', 1, 20, NOW()),
+('activitypub', 'ActivityPub Default', '{title}\n\n{introtext}\n\n{url}', 1, 21, NOW()),
+('blogger', 'Blogger Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 22, NOW()),
+('constantcontact', 'Constant Contact Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 23, NOW()),
+('convertkit', 'ConvertKit Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 24, NOW()),
+('devto', 'Dev.to Default', '# {title}\n\n{introtext}\n\n[Read more]({url})', 1, 25, NOW()),
+('ghost', 'Ghost Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 26, NOW()),
+('googlebusiness', 'Google Business Default', '{title} - {introtext}\n\n{url}', 1, 27, NOW()),
+('googlechat', 'Google Chat Default', '*{title}*\n\n{introtext}\n\n{url}', 1, 28, NOW()),
+('hashnode', 'Hashnode Default', '# {title}\n\n{introtext}\n\n[Read more]({url})', 1, 29, NOW()),
+('matrix', 'Matrix Default', '{title}\n\n{introtext}\n\n{url}', 1, 30, NOW()),
+('nostr', 'Nostr Default', '{title}\n\n{url}', 1, 31, NOW()),
+('tiktok', 'TikTok Default', '{title} #{category}', 1, 32, NOW()),
+('tumblr', 'Tumblr Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 33, NOW()),
+('whatsapp', 'WhatsApp Default', '*{title}*\n\n{introtext}\n\n{url}', 1, 34, NOW()),
+('mokosuitecalendar', 'MokoSuite Calendar Default', '{title}\n\n{introtext}\n\n{url}', 1, 35, NOW()),
+('mokosuitegallery', 'MokoSuite Gallery Default', '{title}\n\n{introtext}\n\n{url}', 1, 36, NOW());
 
 CREATE TABLE IF NOT EXISTS `#__mokosuitecross_category_rules` (
     `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
diff --git a/source/packages/com_mokosuitecross/sql/updates/mysql/01.05.00.sql b/source/packages/com_mokosuitecross/sql/updates/mysql/01.05.00.sql
new file mode 100644
index 00000000..c00b2803
--- /dev/null
+++ b/source/packages/com_mokosuitecross/sql/updates/mysql/01.05.00.sql
@@ -0,0 +1,21 @@
+-- MokoSuiteCross 01.05.00 — Add missing default templates for 16 service types (#130)
+-- Copyright (C) 2026 Moko Consulting. All rights reserved.
+-- SPDX-License-Identifier: GPL-3.0-or-later
+
+INSERT IGNORE INTO `#__mokosuitecross_templates` (`service_type`, `title`, `template_body`, `published`, `ordering`, `created`) VALUES
+('activitypub', 'ActivityPub Default', '{title}\n\n{introtext}\n\n{url}', 1, 21, NOW()),
+('blogger', 'Blogger Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 22, NOW()),
+('constantcontact', 'Constant Contact Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 23, NOW()),
+('convertkit', 'ConvertKit Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 24, NOW()),
+('devto', 'Dev.to Default', '# {title}\n\n{introtext}\n\n[Read more]({url})', 1, 25, NOW()),
+('ghost', 'Ghost Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 26, NOW()),
+('googlebusiness', 'Google Business Default', '{title} - {introtext}\n\n{url}', 1, 27, NOW()),
+('googlechat', 'Google Chat Default', '*{title}*\n\n{introtext}\n\n{url}', 1, 28, NOW()),
+('hashnode', 'Hashnode Default', '# {title}\n\n{introtext}\n\n[Read more]({url})', 1, 29, NOW()),
+('matrix', 'Matrix Default', '{title}\n\n{introtext}\n\n{url}', 1, 30, NOW()),
+('nostr', 'Nostr Default', '{title}\n\n{url}', 1, 31, NOW()),
+('tiktok', 'TikTok Default', '{title} #{category}', 1, 32, NOW()),
+('tumblr', 'Tumblr Default', '<h1>{title}</h1>\n<p>{introtext}</p>\n<p><a href=\"{url}\">Read more</a></p>', 1, 33, NOW()),
+('whatsapp', 'WhatsApp Default', '*{title}*\n\n{introtext}\n\n{url}', 1, 34, NOW()),
+('mokosuitecalendar', 'MokoSuite Calendar Default', '{title}\n\n{introtext}\n\n{url}', 1, 35, NOW()),
+('mokosuitegallery', 'MokoSuite Gallery Default', '{title}\n\n{introtext}\n\n{url}', 1, 36, NOW());