ChatModel vs Private AI
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ChatModel
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ChatModel is an AI assistant based on Artificial Intelligence technology with multimodal features, map recognition, document recognition, networking and more. networking and more. Welcome to ChatModel, our app combines the latest AI technology to provide you with a new chatting experience. Whether you want to get advice, find answers to your questions, chat about the news, or plan for the future, ChatModel has you covered. It is good at handling a variety of tasks, such as writing essays, writing resumes, travel planning, language translation, recipe recommendations, programming guidance, writing song lyrics, and other tasks. It is good at handling a variety of tasks, such as writing essays, writing resumes, travel planning, language translation, recipe recommendations, programming guidance, writing song lyrics, and more. - Supports streaming output to reduce waiting time. - Supports context association, context segmentation and other functions. - Support picture and file questioning to experience the latest models. - Support switching models, currently 80+, experience different AI. - Support 4o, 4.0, o1, opus, sonnet, gemini, llama3.3, Deepseek, etc., make the answer more intelligent. - Support route switching, extremely fast experience. When encountering a question, the prompt is abnormal, you can try in the setting page - route switching function Do not enter personal information. It may generate offensive or dangerous content.ChatModel is not responsible for the generated content. ChatModel is not responsible for the generated content. - Users can subscribe to full functionality with unlimited access; Subscriptions are charged on an annual basis and will be debited from the iTunes account at the end of the year. - Subscriptions are charged on an annual basis and will be debited from the iTunes account at the time the User confirms the purchase; Users may turn off auto-renewal. - Users may turn off auto-renewal of a subscription 24 hours before the end of the current subscription, or the subscription will automatically renew; An Apple ID with an auto-renewal will be automatically renewed. - An Apple ID with an auto-renewing subscription will be automatically charged to the iTunes Account 24 hours prior to the expiration of each billing cycle and extended for the corresponding period of validity. and extended for the corresponding period of validity. - User-managed subscription services, i.e., you can go to your user account settings to turn off automatic subscriptions after purchase. Privacy Policy: https://sites.google.com/view/chatmodelprivacy Usage Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula.
Private AI
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What if you had a true AI assistant on your smartphone that works without Wi-Fi, requires absolutely no account registration, and completely protects all your conversations? "Private AI" makes this a reality. This AI runs directly on your iPhone or iPad, not on a corporate server. No internet connection or sign-up needed. Your data is never sent anywhere; every conversation always stays on your device alone. Your Privacy, Fully Guaranteed Most AI apps send your messages to external servers, but Private AI is different. The AI model lives and thinks directly inside your smartphone. This means your questions, ideas, and conversations belong entirely to you. It is perfect for anyone who values privacyβwhether you are brainstorming work ideas, writing a personal journal, or discussing sensitive topics. Full-Fledged AI on Your Phone Private AI runs some of today's most powerful open-source AI models, including Gemma, Qwen, Ministral, and Phi. New models are added regularly, allowing you to always experience the latest advancements in AI. Once you download a model, it is yours to keep. You never need an internet connection to chat. Thinking Mode Turn on Thinking Mode to see the AI's reasoning process before it delivers an answer. It visualizes the AI's thoughts, making it perfect for getting deeper, more structured responses to complex questions. Just Speak β Or Just Listen Skip the typing and ask questions with your voice. You can also have the AI read its answers aloud. It is incredibly convenient when your hands are full or when you simply prefer listening. Rich Features for Natural Interactions - Auto-save chat history: Pick up right where you left off. - Edit past messages: Get new answers instantly. - Organize freely: Rename and manage your chats with ease. - Custom AI personalities: Set a unique persona for each conversation. - Save favorite prompts: Quick access whenever you need them. - Adjust AI settings: Fine-tune creativity and focus. How It Differs from Cloud-Based AI Because the AI runs locally on your device, response speeds depend on your phone's hardware performance. While it might not respond instantly like cloud-based AIs, it is completely private. Best of all, its greatest strength is that it works flawlessly even on airplanes or in places with no reception. Privacy Policy & Terms of Service https://pochimutech.com/en/private-ai/terms
Screenshots
Verdict
The clearest difference is ads: ChatModel at none against Private AI's shown. ChatModel also leads on iOS requirement (14.0 vs 17). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. ChatModel sells 3 in-app purchases, starting at $3.99 per 7 days and Private AI sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
ChatModel ships an update monthly, Private AI every 2 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | ChatModel | Private AI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 2 months |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 14.0 β better | 17 |
| Further details β not scored | ||
| Size | 15 MB | 18 MB |
| Age rating | 9+ | 4+ |
| Developer | Qijie Information | Ayumu Izumi |
In-app purchases
ChatModel
- Weekly Plus$3.997 Days
- Monthly Plus$12.991 Month
- Annual Plus$119.001 Year
Private AI
- Monthly Plan3 Days trial$2.991 Month
- Yearly Plan$29.991 Year









