Updating
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#82 in Top Paid Apps > Productivity
Description
Open UI is a beautiful, native iOS client for Open WebUI. Connect to your self-hosted server and chat with any AI model you've configured — right from your iPhone.
Built 100% in SwiftUI, Open UI delivers a fast, polished experience with features the browser can't match.
STREAMING CHAT WITH RICH MARKDOWN
Get real-time, word-by-word streaming responses. Messages render with full markdown — syntax-highlighted code blocks with copy buttons, tables, math equations, block quotes, headings, and more. Everything flows smoothly as it streams in with no layout jumps.
LIVE CROSS-DEVICE STREAMING
Start a generation on the website and watch it stream in real-time on the app, token by token. Regenerations, title updates, follow-ups, and completion events all sync instantly between devices.
CHART RENDERING
When the AI outputs chart data in code blocks (Chart.js, ECharts, Highcharts, Vega-Lite, or Plotly), it's automatically rendered as a beautiful native Swift Chart right in the conversation. Supports line, bar, area, scatter, bubble, pie, heatmap, and histogram charts. Includes a Chart/Source toggle to view the raw JSON data.
HTML PREVIEWS
HTML code blocks are now rendered as a live preview instead of raw code. Includes a Preview/Source toggle, fullscreen mode, copy button, share sheet, and dark mode support — all in a scrollable sandboxed webview.
VOICE CALLS WITH AI
Have a real voice conversation with AI. Open UI uses CallKit for native iOS call integration, with animated visualizations that react to voice, real-time transcription, and familiar call controls. It feels like a real phone call.
KNOWLEDGE BASES (RAG)
Type # in the chat to browse and attach knowledge collections, folders, and files from your server. Your AI responds using the context you provide — just like the web UI.
WEB SEARCH & CITATIONS
Toggle web search per message. Your AI searches the web and responds with numbered source citations, favicons, and tappable links.
TOOLS
Enable server-side tools per conversation. Tool calls render inline with expandable arguments, results, and status indicators.
REASONING / THINKING DISPLAY
See the full chain-of-thought from models like DeepSeek and QwQ. Collapsible "Thought for X seconds" blocks let you explore the reasoning process.
TEXT-TO-SPEECH
Choose from four TTS engines:
• Marvis Neural Voice — on-device AI voice powered by MLX
• Server TTS — your Open WebUI server's endpoint
• System TTS — Apple's built-in voices
• Auto mode — picks the best available engine
SPEECH-TO-TEXT
Two STT options:
• Apple Speech — fast, private, works offline
• Server STT — server-side transcription
FOLDERS & ORGANIZATION
Organize conversations into folders with drag-and-drop. Pin important chats, bulk delete, and search across everything. Collapsible time-grouped sections keep things tidy.
THEMING
Light, Dark, and System modes. Pick an accent color from presets or a full color wheel. Enable pure black OLED mode and tinted surfaces. A live preview card shows your theme as you build it.
RICH ATTACHMENTS
Attach files, photos, and documents. Paste images directly into chat. Share content from any app using the Share Extension.
QUICK ACTION PILLS
One-tap toggles below the chat input for web search, image generation, or any tool. Customize which pills appear.
NOTES & NOTIFICATIONS
Create notes alongside your chats with built-in voice recording. Get notifications when a generation completes and tap to jump right in.
ADDITIONAL SETTINGS
• Default model picker synced with your server
• Send on Enter toggle
• Streaming haptics — feel each token arrive
• Temporary chats for privacy
• Configurable silence detection for STT
Open UI is open source and doesn't collect your data. Your conversations go directly to your server — nowhere else.
Requires a running Open WebUI server instance and iOS 18 or later.
Information
Developer
Categories
Version
1.0
Size
38.7 MB
Game Center
No
VPP Device Licensing
Yes
Rating
Rated: 4+
Compatibility
iOS 18.1 or later
Devices
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi-Fi + Cellular, iPad Pro 11-inch (4th generation), iPad Pro 11-inch (4th generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (6th generation), iPad Pro 12.9-inch (6th generation) Wi-Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro 11-inch (M5) Wi-Fi, iPad Pro 11-inch (M5) Wi-Fi + Cellular, iPad Pro 13-inch (M5) Wi-Fi, iPad Pro 13-inch (M5) Wi-Fi + Cellular, iPod touch (6th Generation), iPod touch (7th generation)
Languages
English
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