Comparison

ChatModel vs Private AI

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

ChatModel

Features
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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.

About

Private AI

Features
Read full description

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 privacyβ€”whether 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

ChatModel3 screens
Private AI4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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.

UpkeepUpdate frequency

ChatModel ships an update monthly, Private AI every 2 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Β· 4 level
ChatModel versus Private AI: the parameters behind the verdict, then further details
ParameterChatModelPrivate AI
PriceFreeFree
Update frequencyMonthly β€” betterEvery 2 months
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS14.0 β€” better17
Further details β€” not scored
Size15 MB18 MB
Age rating9+4+
DeveloperQijie InformationAyumu Izumi

In-app purchases

3 purchases

ChatModel

Subscriptions3
  • Weekly Plus$3.997 Days
  • Monthly Plus$12.991 Month
  • Annual Plus$119.001 Year
2 purchases

Private AI

Subscriptions2
  • Monthly Plan3 Days trial$2.991 Month
  • Yearly Plan$29.991 Year

Questions

Is ChatModel free?
ChatModel is free to download, with in-app purchases available.
Is Private AI free?
Private AI is free to download, with in-app purchases available.
Do ChatModel or Private AI have ads?
Private AI shows ads; ChatModel does not.
Which is updated more often, ChatModel or Private AI?
ChatModel ships an update monthly, and Private AI every 2 months. Most recently, ChatModel was updated on November 8, 2026 and Private AI on November 5, 2026.

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