IsiChat

Name: IsiChat
Author: Klaus Gutsch

by Klaus Gutsch

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Free

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Updated
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Size
Devices
Data updated
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November 4, 2025
December 9, 2025
1.0.3
iOS 17.6+
4+
61.5MB
iPhone, iPad
2 months ago
2

Features

macOS Compatibility

Developer

Klaus Gutsch

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About

IsiChat – Your personal AI chat for iPhone and iPad IsiChat is a powerful and privacy focused AI chat app designed for users who want full control over models, costs and data security. Use your own API keys (OpenRouter and optionally Google Gemini) and choose exactly which models you want to work with. All chats, images and vision data are stored locally on your device. No cloud, no ads, no subscription. You top up your credit at OpenRouter and pay only for what you actually use. Features • Chat with more than 500 AI models, automatically pre sorted based on your request • Text and image messages, including multiple images in a single request • Vision mode for generating, analyzing and editing images, with streaming, preview, model display and expandable large view • Move, delete or directly select images for editing • Local storage of all chats and image lists, no server access • Archive, restore and manage favorites • ImageViewer with multi image playback • Integrated image editing and automatic Base64 upload • Adjustable window sizes and a refined, clean layout • CodeInlineBlock with selectable themes, light and dark switch and optimized syntax rendering • Text to speech and voice playback • Automatic light and dark mode for the entire app • Dynamic model title display in iPhone landscape mode • Balance display for full cost transparency • System prompt switching with correct title handling • Option to disable individual responses to reduce costs Simple. Clear. In your control. IsiChat is built with attention to detail and avoids unnecessary complexity. Everything runs locally, giving you full control over your data, your costs and your conversations at all times.

What's New in IsiChat

1.0.3

December 9, 2025

What’s New (Version 1.0.3) 1. Streaming scroll behavior significantly improved. 2. CodeInlineBlock redesigned and modularized. 3. Color themes in CodeInlineBlock are now selectable. 4. Light/Dark mode switch integrated directly into CodeInlineBlock. 5. Color code detection optimized. 6. Menu titles can now be generated directly from the toolbox. 7. Overall layout modernized and optimized. 8. FloatingScrollButton redesigned. 9. FloatingScroll is now permanently visible for better usability. 10. iPhone now displays the model title in landscape mode. 11. SplitView presentation improved. 12. Images are now automatically converted to base64 when sent. 13. Multiple images can now be added to a single request. 14. Image editing tools integrated. 15. Window resolution can now be selected individually. 16. AI generation now works without a dedicated assistant. 17. Vision panel fully connected and functional. 18. Chat title input field redesigned with integrated delete button. 19. Request system fully migrated to OpenRouter. 20. Google Gemini account can now be enabled or disabled in settings. 21. ImageViewer can display multiple images in sequence. 22. Images in the Vision preview can be moved or deleted. 23. Images from the preview can be selected for editing; new results are inserted right after the selected image. 24. A collapsible large preview is now available above the preview images. 25. Image lists in Vision mode are now saved together with the chat. 26. Vision mode automatically assigns the appropriate assistant for generate / analyze / edit actions. 27. Image generation now supports streaming. 28. The model used for generating an image is now displayed in the preview. 29. Models are now automatically pre-sorted based on the request type. 30. Months are now sorted correctly. 31. VisionPreviewRow no longer opens automatically when switching chats. 32. Remaining credit balance is now displayed in the app. 33. Fixed incorrect file assignments during image edit/analyze actions. 34. Added a safety prompt before deleting the last image of an image message. 35. Added generateImageWithGemini (can be disabled). 36. Vision toggle now works reliably. 37. Favorites functionality fixed. 38. Updated and expanded language files. 39. System prompt switching now loads titles correctly from the database. 40. Chat titles are now restored correctly when editing. 41. User manual updated to the latest version.