Private AI
FireEdge LLC · Writing · Chatbot
Private AI is an Android app that runs language models like Gemma 2 and Llama 3.2 on your phone, so you can chat offline with no data leaving your device.
About Private AI
What Is Private AI
Private AI, the on-device AI chat app from FireEdge LLC, puts language models on your Android phone instead of on a company server somewhere you'll never see, which changes who can read your prompts. You download the app, pick a model, and chat. Nothing gets sent to a server, so your messages stay on the device.
The pitch is simple: most AI chatbots need a constant connection, and your prompts travel through somebody else's computers. Private AI flips that. Runs happen locally, the app works in airplane mode, and there's no account to create and no usage tracking to opt out of.
The tradeoff is horsepower. The models small enough to fit on a phone are weaker than the giant cloud ones, and how well any of them runs comes down to how much RAM and how much processing power your specific handset is carrying. Budget phones will handle the lighter models fine. The bigger ones need a device with more memory. The free tier is also limited to the bundled models, since adding your own GGUF files sits behind the premium paywall.
Getting Started
- Install Private AI from Google Play and open it. No sign-up needed.
- Let it download the default model (Gemma 2) over Wi-Fi. Models are a few gigabytes each.
- Pick a model from the built-in list if you want something other than the default.
- Start a chat and type your first prompt. Everything runs on the device from here.
- Turn on airplane mode to confirm it works offline. Premium users can also load a custom GGUF model file.
Product Information
A quick look at Private AI's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Privacy-conscious Android owners
- Frequent flyers and remote workers
- AI hobbyists on Android
Tasks
- Drafting text offline
- Quick Q&A and brainstorming
- Private drafting of sensitive material
Scenarios
- Commuting with patchy reception
- Traveling abroad without a data plan
- Afternoon sessions on a Wi-Fi-only tablet or phone
Key features
On-Device Language Models
This on-device AI chat app runs its language models on the phone's own processor rather than a remote server. That's what makes offline use possible and keeps every prompt on the device. The catch is that the phone sets the ceiling: heavier models need more RAM and a stronger chip, so pick based on your hardware.
Offline Chat That Needs No Connection
The app works with no internet at all, so you can chat on a plane, in a tunnel, or anywhere the signal is bad. There's no waiting on a server round-trip either, which keeps replies feeling quick once a model is loaded. Ever had a cloud chatbot time out mid-sentence? This is the fix.
Built-In Model Library
A stack of models ships with the app: Gemma 2 (the default), Llama 3.2, Phi-3.5 mini, Mistral, Orca mini, Rocket 3B, and others. Switching between them takes a tap, so you can compare how each one handles a prompt. That makes it a local LLM Android app you can tune to the phone in your hand rather than a fixed, one-size chatbot. It's a good way to find the balance between speed and answer quality on your specific device.
Custom GGUF Model Support
Premium users can run GGUF models of their choosing, which opens the door to niche or uncensored models beyond the bundled list. GGUF is a common file format for local AI models, so if you already have one, you can drop it in. This is the feature that turns the app from a fixed chatbot into a flexible private AI assistant.
Private by Design
All processing stays on the device and the app collects no data, according to its Google Play listing. There's no account to make, and no prompts get logged somewhere you can't see. For people who treat their AI chats as private, that's the whole reason to use it. Nothing about this on-device AI chat app leaves your phone unless you tell it to.
Searchable Chat History
Conversations are saved locally and come with a search, so you can dig up an old answer without scrolling. Since history lives on the phone, it stays under your control. Handy for longer projects where you return to the same thread over days.
Uncensored Model Option
Because premium users can import their own GGUF files, the app supports uncensored AI chat for models that skip the usual guardrails. The app is upfront about the tradeoff: those models have no safety net, and you're responsible for what they produce. That's a feature for some users and a warning label for others, and FireEdge leaves the call to you.
Ad-Free Interface
There are no ads, so nothing interrupts a chat and nothing is tracking you to serve them. The screen stays on your conversation. Small thing, but it matters when you're comparing it to free chatbots that sell attention.
Pros and cons
Pros
- Full privacy: prompts and replies stay on the device, with no data collection per the app's listing.
- Works offline: chat without internet, which is rare for an AI chatbot.
- Multiple built-in models: several options to try without paying or setting anything up.
- Custom GGUF support on premium: load your own models for more control.
- No account and no ads: nothing to sign up for and nothing competing for your attention.
Cons
- Performance depends on your phone: weaker devices can't run the bigger models well, and you'll notice the lag.
- Custom models sit behind premium: the flexibility that sets it apart costs money.
- Local models lag cloud ones: answers from a phone-sized model won't match a top cloud chatbot on hard tasks.
- Uncensored models carry risk: the app warns that such models have no guardrails, so you're responsible for what they generate.
Frequently asked questions
It's an Android app for chatting with AI language models that run directly on your phone. The point is privacy and offline use, so you can get AI help without sending your prompts to a server. That setup suits anyone who wants an offline AI chatbot they actually control, and it means the answers keep coming even when the signal is gone.
Related content
Explore related tools, skills, and articles for Private AI.
Private AI Alternatives
Google EmbeddingGemma 2
Google DeepMind · Writing · Image · CodingGoogle EmbeddingGemma 2 is a 740M-parameter open model that turns text, code, images, audio, and video frames into vectors in one 768-dimension space, running on phones and laptops.
MePersona
MePersona, Inc. · Writing · Productivity · MarketingMePersona is an AI unified inbox for creators. It learns your voice, drafts replies to fan messages from 12 platforms, and sends only what you approve.
Fluence
Yay Software (Yannick Huchard) · Writing · Voice & Language · ProductivityFluence is an Android app that reads PDFs, EPUBs, Word files and web articles aloud, follows each sentence as it speaks, and answers questions about the text on the phone itself.