No account. No cloud. Download Gemma 4 once, then chat entirely on-device, even offline.
Yemma 4 is a private AI chat app that runs entirely on your iPhone.
It runs Google's Gemma 4 locally through a Swift-native MLX multimodal runtime, so your prompts, images, and responses stay on your device. There is no account to create, no cloud inference service in the middle of your conversations, and no telemetry pipeline watching what you do.
Download the model once, then keep chatting on Wi-Fi, cellular, or in airplane mode. Ask questions, brainstorm ideas, rewrite text, summarize notes, describe photos, and have real back-and-forth conversations with image attachments, all processed on-device.
Why Yemma 4 feels different:
- 100% on-device AI chat
- No sign-up, login, or subscription
- Offline after the initial model download
- Local conversation history you can delete any time
- Adjustable response style and creativity controls
- Image understanding through the same on-device model
Hardware note:
- Requires iPhone hardware with the A17 Pro chip or later
- First model download is about 4.2 GB, so Wi-Fi and free storage are recommended
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App Store listing refresh with updated screenshots, clearer privacy and runtime details, and published accessibility support information.
Version 1.0.1
The developer, AVMIL LABS LLC, 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 Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Larger Text
Dark Interface
Information
Provider
AVMIL LABS LLC
Size
29.2 MB
Category
Productivity
Compatibility
Requires iOS 17.0 or later and a device with A17 Pro chip or later.
iPhone Requires iOS 17.0 or later and a device with A17 Pro chip or later. • iPhone 15 Pro • iPhone 15 Pro Max • iPhone 16 • iPhone 16 Plus • iPhone 16 Pro • iPhone 16 Pro Max • iPhone 16e • iPhone 17 Pro • iPhone 17 Pro Max • iPhone 17 • iPhone Air • iPhone 17e
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.