Clarissa AI vs Private AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clarissa AI
An intelligent AI assistant that processes all requests on your device for complete privacy. It offers voice interaction, task management, and integration with Siri Shortcuts. Optional cloud AI access provides advanced reasoning capabilities.
- On-device AI processing for privacy
- Voice interaction and dictation
- Task management (weather, math, calendar, reminders)
- Siri Shortcuts integration
- Optional cloud AI access
- Conversation memory
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Clarissa is your intelligent AI assistant that runs entirely on your device. Powered by Apple Intelligence and Apple Foundation Models, your conversations stay completely private. No data leaves your device. PRIVATE & SECURE All AI processing happens on-device using Apple's Foundation Models. Your questions, tasks, and personal information never leave your iPhone or Mac. No cloud processing, no data collection, no compromises on privacy. SMART TOOLS Clarissa can help you with everyday tasks: - Check the weather for any location - Calculate tips, percentages, and math problems - Create calendar events and schedule meetings - Set reminders and manage your to-do list - Look up contacts and find phone numbers - Remember important information for later VOICE INTERACTION Speak naturally with built-in voice input. Dictate your questions hands-free and hear responses read aloud. Perfect for when you're on the go or multitasking. SIRI SHORTCUTS "Hey Siri, ask Clarissa" — Clarissa integrates with Siri Shortcuts for quick access and automation. Create custom shortcuts to streamline your workflow. CLOUD FALLBACK Need more power? Connect to 100+ AI models via OpenRouter, including Claude, GPT-4, Gemini, and more. Use cloud AI when you need advanced reasoning while keeping on-device AI for everyday tasks. BEAUTIFUL DESIGN Built with SwiftUI and Apple's latest design language for a native experience that feels right at home on iOS and macOS. Smooth animations, intuitive gestures, and seamless integration with your Apple devices. CONVERSATION MEMORY Clarissa remembers what matters. Save important facts and preferences that persist across conversations, making your assistant smarter over time. Clarissa is designed for Apple Intelligence-enabled devices. Experience AI the way it should be: fast, private, and helpful.
Private AI
This AI assistant operates entirely offline on your device, ensuring 100% data privacy. It allows you to chat with your documents using specialized AI experts and custom prompts, without any internet connection or data uploads.
- 100% private and offline operation
- Chat with PDFs, code, spreadsheets, and more
- 25 specialized AI experts and custom prompts
- No subscriptions or in-app purchases
- Leverages Apple Intelligence models
- Zero tracking and zero data uploads
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Transform how you work with information using Private AI: Document Chat, the AI assistant that keeps 100% of your data private on your device. No internet required. No data uploaded. Ever. 100% PRIVATE & OFFLINE Your conversations, documents, and data stay on YOUR device. Forever. Unlike ChatGPT, Gemini, Claude, or other cloud AI services, Private AI uses Apple's built-in Intelligence models for completely offline, lightning fast responses. Zero tracking. Zero uploads. Zero compromises. Perfect for confidential, sensitive, or personal use. NO HIDDEN COSTS No subscriptions. No in-app purchases. No "premium" features locked behind paywalls. Buy once, use forever. POWERED BY APPLE INTELLIGENCE Built exclusively for iPhone 15 Pro+, iPad M1+, and Mac with Apple Silicon. No large, external vendor model downloads eating your storage - Private AI leverages the powerful AI models already in your device from Apple. Fast, efficient, and always ready. CHAT WITH YOUR DOCUMENTS Upload PDFs, code files, spreadsheets, notes, research papers, meeting transcripts, word documents, and more. With any text-based file, you can ask questions, get summaries, extract insights, analyze data, and more using advanced RAG (Retrieval Augmented Generation) technology. Your personal document library becomes instantly searchable and queryable. 25 SPECIALIZED AI EXPERTS READY TO USE No prompt engineering needed. Just pick your expert: • Study & Learn: Teacher, Summarizer, Simplifier • Coding: Code Expert, Debugger, Technical Writer • Writing: Creative Writer, ReWriter, Spell Checker, Poet, Story Teller • Business: Analyst, Marketer, Meeting Notes, Recruiter, Planner • Creative: Brainstormer, Social Media, Guide Creator, Motivator • Utility: Translator, Pros & Cons, Follow Ups, Concise Mode Plus, create unlimited custom prompts for your specific needs! VS CHATGPT, CLAUDE, GEMINI, & OTHERS They require internet & upload your data → Private AI is 100% offline They charge monthly subscriptions forever → Private AI is yours (one-time purchase) They track your usage & conversations → Private AI has zero analytics, zero tracking They can't guarantee where your data goes → Private AI your data never leaves your device WHO IS THIS FOR? • Students - Study aids, research analysis, essay help, exam prep • Professionals - Confidential docs, reports, presentations, meeting notes • Developers - Code review, debugging, documentation, architecture planning • Writers - Brainstorming, editing, storytelling, content creation • Researchers - Paper analysis, data insights, literature review Anyone who values privacy and wants to leverage AI with sensitive information that absolutely does not belong in the cloud. POWERFUL FEATURES • Multiple isolated conversations - keep contexts separate • Document library - reuse files across chats • Beautiful themes - customize every color • Smart search - find conversations and documents instantly • Markdown support - beautifully formatted responses • No ads, ever - you own the app, not the other way around HOW DOES IT WORK? Private AI uses Apple's Foundation Models that are already on compatible devices. When you upload a document, it's split into intelligent chunks and converted to vector embeddings (mathematical representations of meaning) stored in a local database. When you ask questions, our RAG system finds the most relevant chunks and provides them as context to the AI model alongside your query. The model generates responses using both the retrieved information and its built-in knowledge - all processed locally on your device's Neural Engine. No internet. No APIs. No cloud processing. Just pure, private, on-device AI. Your knowledge. Your privacy. Your control. Download Private AI: Document Chat and experience truly private AI assistance today. REQUIREMENTS: • iOS26 • iPhone 15 Pro or iPhone 16+ models • iPad mini (A17 Pro) or iPad with M1+ • Mac with Apple Silicon (M1+)
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Verdict
The clearest difference is price: Clarissa AI at Free against Private AI's $4.99. Clarissa AI also leads on rating (5.0 vs 3.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Clarissa AI is free to download; Private AI costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Clarissa AI holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | Clarissa AI | Private AI |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (1 ratings) — better | 3.5 (2 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 6 MB |
| Age rating | 4+ | +12 |
| Developer | Cameron Rye | GTechnologies LLC |
Customer experience
Clarissa AI
Private AI
In-app purchases
Clarissa AI
No in-app purchases
Private AI
No in-app purchases









