Built for iPhone Duo — Unfolded, the editor and live preview share the screen and split around the fold. In tabletop posture, the preview stands on the upper half while you type on the lower half. Updated diagram engines — Mermaid 12, PlantUML, and Graphviz are updated. Your existing Mermaid diagrams keep their familiar look; PlantUML sequence diagrams use PlantUML's newer default layout. Smaller download — The PlantUML runtime is less than half its previous size. Fewer render errors — Diagrams that mention a URL in a label or link now render instead of being rejected. Links stay inside the preview. New app icon

Ten languages — The interface is now translated into English, Spanish, French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Traditional Chinese, and Italian. Translated template library — Every template category, name, and description is translated, so browsing for the right starting point works in your language too. Per-app language picker — Settings ▸ Appearance ▸ Language lets you run PrivyMermaid in a language of its own, independently of the rest of your device. Choose System to follow your device setting. Sensible language matching — Regional variants land where you would expect: Traditional Chinese for Taiwan, Hong Kong, and Macau, and Brazilian Portuguese for other Portuguese regions. Your diagrams stay yours — Diagram source is never translated, and existing diagrams and projects keep working unchanged when you switch languages.

Ten languages — The interface is now translated into English, Spanish, French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Traditional Chinese, and Italian. Translated template library — Every template category, name, and description is translated, so browsing for the right starting point works in your language too. Per-app language picker — Settings ▸ Appearance ▸ Language lets you run PrivyMermaid in a language of its own, independently of the rest of your device. Choose System to follow your device setting. Sensible language matching — Regional variants land where you would expect: Traditional Chinese for Taiwan, Hong Kong, and Macau, and Brazilian Portuguese for other Portuguese regions. Your diagrams stay yours — Diagram source is never translated, and existing diagrams and projects keep working unchanged when you switch languages.

Ten languages — The interface is now translated into English, Spanish, French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Traditional Chinese, and Italian. Translated template library — Every template category, name, and description is translated, so browsing for the right starting point works in your language too. Per-app language picker — Settings ▸ Appearance ▸ Language lets you run PrivyMermaid in a language of its own, independently of the rest of your device. Choose System to follow your device setting. Sensible language matching — Regional variants land where you would expect: Traditional Chinese for Taiwan, Hong Kong, and Macau, and Brazilian Portuguese for other Portuguese regions. Your diagrams stay yours — Diagram source is never translated, and existing diagrams and projects keep working unchanged when you switch languages.

Ten languages — The interface is now translated into English, Spanish, French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Traditional Chinese, and Italian. Translated template library — Every template category, name, and description is translated, so browsing for the right starting point works in your language too. Per-app language picker — Settings ▸ Appearance ▸ Language lets you run PrivyMermaid in a language of its own, independently of the rest of your device. Choose System to follow your device setting. Sensible language matching — Regional variants land where you would expect: Traditional Chinese for Taiwan, Hong Kong, and Macau, and Brazilian Portuguese for other Portuguese regions. Your diagrams stay yours — Diagram source is never translated, and existing diagrams and projects keep working unchanged when you switch languages.

PlantUML support — Create, import, preview, and export PlantUML diagrams alongside Mermaid and D2. Graphviz support — Create, import, preview, and export Graphviz DOT diagrams alongside the other supported languages. Four diagram languages in one app — Start a new diagram in Mermaid, D2, PlantUML, or Graphviz. Expanded file imports — Open PlantUML files such as .puml, .plantuml, .pu, and .uml, plus Graphviz files such as .dot, .gv, and .graphviz. Format-aware sharing and exports — Export PlantUML and Graphviz diagrams as SVG, PNG, PDF, or GIF, or share their source files in the matching format. Improved source highlighting — PlantUML and Graphviz source now have language-aware syntax highlighting.

D2 diagram support — Create, import, edit, preview, and export D2 files alongside Mermaid diagrams. Projects and files — A new native Projects tab keeps diagrams organized in folders. Search files, rename or delete diagrams, create projects, and move files between projects or Ungrouped. Diagram Cloud account — Sign in with a secure email link, GitHub, or Google. There are no keys or Supabase setup steps to configure. Automatic cloud backup — After signing in, locally saved diagrams automatically sync to your Diagram Cloud Ungrouped project. Your local copy remains available if you are offline. Better template browsing — Templates now show their intended use tags and whether they use Mermaid or D2.

D2 diagram support — Create, import, edit, preview, and export D2 files alongside Mermaid diagrams. Projects and files — A new native Projects tab keeps diagrams organized in folders. Search files, rename or delete diagrams, create projects, and move files between projects or Ungrouped. Diagram Cloud account — Sign in with a secure email link, GitHub, or Google. There are no keys or Supabase setup steps to configure. Automatic cloud backup — After signing in, locally saved diagrams automatically sync to your Diagram Cloud Ungrouped project. Your local copy remains available if you are offline. Better template browsing — Templates now show their intended use tags and whether they use Mermaid or D2.

- **Unlock Pro inside the app** — A one-time in-app purchase unlocks every Pro feature, and "Restore Purchases" brings them back on your other devices. - **More AI backends (Pro)** — Once unlocked, connect to Ollama, LM Studio, or any custom OpenAI-compatible endpoint, with an optional API token stored securely in the device Keychain. - **Ask with images (Pro)** — Attach screenshots or photos to your questions and chat about them with vision-capable models. - **Nicer AI answers (Pro)** — Responses now render as formatted Markdown, with a collapsible "Thinking" section for reasoning models. - **Refreshed chat (Pro)** — Your messages appear on the right as "You", with clearer, simplified messages when a server can't be reached. - **Cleaner Settings & About** — Simplified privacy summary, a built-in Privacy Policy link, and a dedicated About screen. - **Private and offline as always** — Diagrams stay on your device. No accounts, no tracking, no telemetry.

- **Unlock Pro inside the app** — A one-time in-app purchase unlocks every Pro feature, and "Restore Purchases" brings them back on your other devices. - **More AI backends (Pro)** — Once unlocked, connect to Ollama, LM Studio, or any custom OpenAI-compatible endpoint, with an optional API token stored securely in the device Keychain. - **Ask with images (Pro)** — Attach screenshots or photos to your questions and chat about them with vision-capable models. - **Nicer AI answers (Pro)** — Responses now render as formatted Markdown, with a collapsible "Thinking" section for reasoning models. - **Refreshed chat (Pro)** — Your messages appear on the right as "You", with clearer, simplified messages when a server can't be reached. - **Cleaner Settings & About** — Simplified privacy summary, a built-in Privacy Policy link, and a dedicated About screen. - **Private and offline as always** — Diagrams stay on your device. No accounts, no tracking, no telemetry.

- **Unlock Pro inside the app** — A one-time in-app purchase unlocks every Pro feature, and "Restore Purchases" brings them back on your other devices. - **More AI backends (Pro)** — Once unlocked, connect to Ollama, LM Studio, or any custom OpenAI-compatible endpoint, with an optional API token stored securely in the device Keychain. - **Ask with images (Pro)** — Attach screenshots or photos to your questions and chat about them with vision-capable models. - **Nicer AI answers (Pro)** — Responses now render as formatted Markdown, with a collapsible "Thinking" section for reasoning models. - **Refreshed chat (Pro)** — Your messages appear on the right as "You", with clearer, simplified messages when a server can't be reached. - **Cleaner Settings & About** — Simplified privacy summary, a built-in Privacy Policy link, and a dedicated About screen. - **Private and offline as always** — Diagrams stay on your device. No accounts, no tracking, no telemetry.

- **Unlock Pro inside the app** — A one-time in-app purchase unlocks every Pro feature, and "Restore Purchases" brings them back on your other devices. - **More AI backends (Pro)** — Once unlocked, connect to Ollama, LM Studio, or any custom OpenAI-compatible endpoint, with an optional API token stored securely in the device Keychain. - **Ask with images (Pro)** — Attach screenshots or photos to your questions and chat about them with vision-capable models. - **Nicer AI answers (Pro)** — Responses now render as formatted Markdown, with a collapsible "Thinking" section for reasoning models. - **Refreshed chat (Pro)** — Your messages appear on the right as "You", with clearer, simplified messages when a server can't be reached. - **Cleaner Settings & About** — Simplified privacy summary, a built-in Privacy Policy link, and a dedicated About screen. - **Private and offline as always** — Diagrams stay on your device. No accounts, no tracking, no telemetry.

- Fixed an issue where the current Mermaid file might not render automatically when opening the app for the first time. - Fixed PNG export naming so exported `.png` files now use the current Mermaid document name. - Improved Mermaid preview reliability during app startup and document switching.

Template Library for Free — Browse built-in Software Development templates and create new diagrams from proven Mermaid starting points. More export formats — Export your work as Mermaid source (.mmd), SVG, PNG, PDF, or animated GIF directly from the preview toolbar. Animated GIF export — Flowcharts with Mermaid edge animation can now be shared as GIFs, making motion effects easier to present outside the app. Cleaner output capture — Exported PNG and PDF files now use better sizing and background handling, so diagrams are captured more reliably. Rendering improvements — Preview updates are more consistent, with improved handling for fast re-renders and animated edges. Clearer upgrade path — Free users can use the Template Library now, while Pro unlocks all template categories and local AI tools.

More export formats — Export your work as Mermaid source (.mmd), SVG, PNG, PDF, or animated GIF directly from the preview toolbar. Animated GIF export — Flowcharts with Mermaid edge animation can now be shared as GIFs, making motion effects easier to present outside the app. Cleaner output capture — Exported PNG and PDF files now use better sizing and background handling, so diagrams are captured more reliably. Rendering improvements — Preview updates are more consistent, with improved handling for fast re-renders and animated edges.

Simpler layout — Sidebar (document list) and the right-hand panel start collapsed so you see more of your diagram by default. Use the toolbar icons to open them when you need. Settings cleanup — Open Source Licenses and About are now in Settings (gear icon): open Settings → Legal → Open Source Licenses for licenses; version and copyright are at the bottom of Settings. Single entry to Settings — One gear icon in the toolbar opens Settings; navigation is simpler. Stability — Fixed the in-app Open Source Licenses page so it loads correctly.