Solo AI Assistant
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About this app
Solo is a private AI assistant that runs entirely on your phone. There is no cloud, no account, and no chat server. Your messages stay on your device.
Why Solo is different
• Truly on-device: the language model runs locally using llama.cpp. Once the model file is downloaded on first launch, the app works fully offline — even in airplane mode.
• No backend for chat: your prompts and responses never travel to a server. Nothing is uploaded, nothing is logged remotely.
• No account required: open the app and start chatting. No sign-up, no email, no phone number.
• Your data, your device: chat history is stored only in this app's private storage. You can clear it any time from Settings.
What you can do with Solo
• Ask questions, brainstorm, draft emails, summarise text, get explanations.
• Use it on flights, on the subway, in low-signal areas — it doesn't need a connection.
• Stop a response mid-stream when you've seen enough.
• Long-press any message to copy it.
• Manage installed models and free up space from Settings.
How it works
On first launch, Solo downloads a compact open-source language model (~400 MB, Qwen2.5-0.5B-Instruct) from Hugging Face. After that, the model lives on your device and runs locally on every chat. No further network
calls are made for inference.
Performance notes
• Optimised for modern phones. Older or low-RAM devices may respond more slowly.
• Running a language model is computationally intensive — your phone may warm up during long sessions.
Privacy at a glance
• Chat content: stays on device. Never sent anywhere.
• Anonymous usage analytics: limited app-event analytics (screen views, model load events) are collected to improve reliability. No message content is ever included.
• Push notifications: optional, used only for occasional product updates if you grant permission.
Permissions
• Internet: needed once to download the model and to deliver optional push notifications.
• Storage: needed to save the downloaded model on your device.
Open source models, open standards
Solo uses widely-reviewed, open-weights models distributed under permissive licenses. You can manage and remove models at any time from the Settings screen.
Made with care by Aftab Ali — an independent developer who believes your conversations belong to you, not to a server farm.
Why Solo is different
• Truly on-device: the language model runs locally using llama.cpp. Once the model file is downloaded on first launch, the app works fully offline — even in airplane mode.
• No backend for chat: your prompts and responses never travel to a server. Nothing is uploaded, nothing is logged remotely.
• No account required: open the app and start chatting. No sign-up, no email, no phone number.
• Your data, your device: chat history is stored only in this app's private storage. You can clear it any time from Settings.
What you can do with Solo
• Ask questions, brainstorm, draft emails, summarise text, get explanations.
• Use it on flights, on the subway, in low-signal areas — it doesn't need a connection.
• Stop a response mid-stream when you've seen enough.
• Long-press any message to copy it.
• Manage installed models and free up space from Settings.
How it works
On first launch, Solo downloads a compact open-source language model (~400 MB, Qwen2.5-0.5B-Instruct) from Hugging Face. After that, the model lives on your device and runs locally on every chat. No further network
calls are made for inference.
Performance notes
• Optimised for modern phones. Older or low-RAM devices may respond more slowly.
• Running a language model is computationally intensive — your phone may warm up during long sessions.
Privacy at a glance
• Chat content: stays on device. Never sent anywhere.
• Anonymous usage analytics: limited app-event analytics (screen views, model load events) are collected to improve reliability. No message content is ever included.
• Push notifications: optional, used only for occasional product updates if you grant permission.
Permissions
• Internet: needed once to download the model and to deliver optional push notifications.
• Storage: needed to save the downloaded model on your device.
Open source models, open standards
Solo uses widely-reviewed, open-weights models distributed under permissive licenses. You can manage and remove models at any time from the Settings screen.
Made with care by Aftab Ali — an independent developer who believes your conversations belong to you, not to a server farm.
Private on-device AI chat. The model runs on your phone. Works fully offline.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
