Supported Features
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VoiceOver
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Voice Control
esper - Offline & Private AI
On-device LLM Chat
Free · In‑App Purchases · Designed for iPad
Run Llama, R1, or Gemma completely offline. Use ChatGPT, Grok, Claude, or any other model online. Chat with voice, vision, and files. esper is your private AI chat.
esper - Offline & Private AI is your personal AI chat app—designed to keep your conversations private and powerful.
Run open-source models completely offline on your iPhone. With esper - Offline & Private AI, you can choose to keep your data on your device. No tracking.
Key Features of esper - Offline & Private AI:
– Run Offline
Download top open-source models like LLaMA, Gemma, and DeepSeek directly to your phone—fully functional even without internet or WiFi.
– Bring Your Own Key
Prefer ChatGPT or Claude? Want to use internet search capabilities? Plug in your own API key and get instant access to premium models from their providers.
– Multimodal Support
Chat with models that support vision for images, PDFs, and other files.
– Local RAG knowledge bases
Upload documents into organized collections that you can add to chats to provide extra context for models, all 100% private and offline.
– Shortcuts
Send prompts and attachments to esper from shortcut workflows
– Branching Conversations
Explore different chat paths and easily toggle between threads.
– Privacy-First
No analytics, no log storage, no server necessary. esper - Offline & Private AI gives total user control to choose completely offline chats, or connect with their favourite online providers. The choice is yours.
– Custom GPTs & Model Swapping
Build and edit your own GPTs. Switch models mid-conversation—from Gemini to Claude in a single chat.
– Customizable
Adjust the interface to match your personal style. Take control of conversations with editing, deleting, or retrying messages.
– Go Pro
Pro gives you unlimited model downloads, knowledge base access, and optional color themes and animations.
If you want an AI chat experience that’s powerful, flexible, and private, esper - Offline & Private AI is built for you.
This update of esper - Offline & Private AI includes new features and bug fixes. Visit esper-ai.com/changelog for more information.
The developer, Cody Ingram, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Cody Ingram
- Size
- 154.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- esper Pro $7.99
- Copyright
- © 2025 Aperture Labs