SayFlow: AI Chat, Translate

SayFlow: AI Chat, Translate

BYOK AI chat and translator

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Free

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Released
May 7, 2026
Updated
October 22, 2026
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SayFlow brings leading AI models together in one flexible chat app. Use your own API keys for cloud models, or run AI right on your iPhone. No account or subscription required. Chat with models from OpenAI, Anthropic, Google, SpaceXSI, and DeepSeek, or download open-weight models that run entirely on your device, alongside Apple Intelligence when available. Choose a model for each conversation, adjust reasoning and response settings, generate images, and keep your favorite prompts ready in your custom instruction library. SayFlow is built for people who want control over their AI workspace. Your API keys are stored securely in the Keychain, and your conversations stay on your device. When you use a cloud model, your messages are sent only to the provider you choose. Key Features: • Chat with multiple AI providers in one app • Bring your own API keys • Run open-weight models on device, or import your own GGUF models • Use on-device Apple Intelligence when available • Add web search to supported models • Choose a different model for each conversation • Adjust reasoning where supported • Generate images and attach photos and files • Save and reuse custom instructions and skills • Use voice input for quick prompts • Automatically compress long chats to keep context focused • View estimated tokens and response metrics • Pin, search, archive, and export your chats • Translate text with your selected model • Start a secret chat that isn't saved ...and more. SayFlow does not sell API credits or subscriptions. Using third-party AI services may require your own provider account, API key, billing setup, and agreement to each provider's terms. SayFlow is an independent app and is not affiliated with OpenAI, Anthropic, Google, SpaceXSI, DeepSeek, or Apple. Terms of Use: https://saypop.kr/sayflow/terms/?lang=en Privacy Policy: https://saypop.kr/sayflow/privacy/?lang=en
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What's New in SayFlow

2.0.3

October 22, 2026

[v2.0.3] What's New • Long-term memory: AI models can now remember things about you across conversations. Memory is off by default. Turn it on, and view, add, edit, or delete memories, in Settings → Response Tools → Memory. GPT, Claude, Gemini, Grok, and DeepSeek can save and update memories. Local models and Apple Intelligence can read them but can’t save new ones. Secret chats never use memory. • Read aloud: Tap the new button on any AI reply to have it read aloud. Code blocks, links, formatting symbols, and emoji are skipped, and the voice matches the reply’s language. Starting a reading stops any other reading in progress, including in Translation. • You can now attach photos when chatting with DeepSeek V4.1 Flash. • DeepSeek now supports built-in web search with just your DeepSeek API key — no separate search key needed. Searches are billed to your DeepSeek account. • Reply notifications: Get notified when an AI reply finishes, whether you’ve left the app or are reading another conversation. The notification shows the start of the reply, and tapping it opens that conversation. Turn this on or off in Settings → Response Notifications. • Mermaid diagrams: Mermaid code blocks in replies now appear as diagrams. Tap one to view it full screen, save or share it as an image, or switch back to the code. • More web search providers: Exa and DeepSeek are now available as external web search providers next to Tavily and Serper. DeepSeek search uses your existing DeepSeek API key. • Faster API key setup: If a provider has no API key yet, tap the character or speech bubble in an empty chat to go straight to that provider’s settings. • Chat filters: Use the new … menu in the Chats tab to show only today's conversations, or those from the last 3, 7, or 30 days. • Select multiple chats: Select chats one by one or all at once, then delete them or move them to an archive. • Profile in Settings: Your profile photo and name now appear at the top of Settings. Tap them to make changes. • Cleaner message field: The message field stays compact until you tap it, then expands to show all its options. • Your profile photo in chats is now the same size as the AI's. • Fixed a brief flicker when opening a chat. Improvements • Gemini 3 and later can now use Google Search together with app tools like memory and skills. • Web search results now include publication dates, so replies can better judge how recent the information is. • Errors from search providers, such as an insufficient balance, now appear with the provider’s own message.

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