ChatOn vs Monica
Price, platforms and features side by side. The table says where each price was read and when.
ChatOn
Multi-model AI chatbot app with image tools and web search
Monica
AI assistant with many models, built around a browser sidebar
Where they differ
- ChatOn starts at $6.99 per week, or $59.99 per year (US App Store). Monica starts at $8.3 per month, billed annually ($99 per year).
- Only Monica lists macOS and Windows apps.
- Only Monica lists a browser extension.
- Monica also covers AI agents and grammar & style.
At a glance
| ChatOn | Monica | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $6.99 per week, or $59.99 per year (US App Store) | $8.3 per month, billed annually ($99 per year) |
| Free plan | Basic chat answers from a standard GPT model, multi-language support and the AI text detector. Advanced models, web search, uploads and image tools are Premium only. | 40 requests to basic models a day, basic writing, translation and summaries, and limited trials of image and video generation, ChatPDF and the AI Agent. |
| Free trial | The App Store lists a weekly plan with a free trial of unstated length; on the web, the first five requests can use Premium options. | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| iOS | ||
| Android | ||
| Browser extension | ||
| Made by | AIBY Inc. | Butterfly Effect Pte. Ltd. |
| Price read from | apps.apple.com | monica.im |
| Checked | Oct 9, 2026 | Oct 5, 2026 |
Who each one suits
ChatOn
- Casual users who want several AI models in one phone app
- Quick captions, emails and summaries from ready-made prompts
- People who want chat and image generation under one subscription
Monica
- People who want AI help inside the browser on any web page
- Summarizing web pages, YouTube videos and PDFs
- Using several model families under one subscription
Worth knowing
ChatOn
- The website lists no prices; they are shown in the app stores and in the web app before purchase, and may vary outside the US.
- The free plan is limited to basic chat: advanced models, web search, uploads and image generation all need Premium.
- Vendor pages disagree on the free plan's model: the plan table says GPT-5.6, while the FAQ says GPT-4o mini.
- The US App Store lists the iOS app as iPhone only.
Monica
- The Free plan allows 40 basic-model requests a day and gives only limited trials of image and video generation, ChatPDF and the AI Agent.
- Pro is capped at 5,000 basic and 200 advanced model queries a month, and image, video and agent features spend Advanced Credits on every plan.
- Accounts are for personal use only, and Monica says a team subscription has not launched. The prices listed are for annual billing.
- Monica's help center describes an August 2026 transition in which data created since December 29, 2025 was set to be deleted for users in certain regions.
Key features
ChatOn
- Several models in one chat
- Premium opens GPT-5, GPT-4o, o4-mini, Claude Sonnet 5, Gemini 3.5 Flash and Perplexity Sonar, and the model can be switched to suit the task.
- Real-time web search
- Questions can be answered from current web results through Perplexity Sonar and Sonar Pro. Web search is a Premium feature.
- Image generation and Pic Transformer
- Creates images from a description, edits existing ones in the chat, restyles an uploaded photo with preset looks, and turns a photo into a short video.
- Doc Master
- Summarizes, rewrites, translates and answers questions about PDF, DOC, TXT and EPUB files. Text in a photo can be extracted with OCR and brought into the chat.
- Writing tones and ready-made prompts
- Replies can be set to tones such as Professional, Friendly or Persuasive, and a prompt library covers captions, emails, resumes, travel plans and similar everyday tasks.
- Web and mobile sync
- A single purchase applies across the web app and the iOS and Android apps, so the subscription does not need to be bought again on another device.
Monica
- Many models in one chat
- Chats with models such as GPT-5.5, Claude 4.6 Sonnet and Gemini 3.1 Pro from one account, and can show answers from several models side by side for comparison.
- Browser sidebar and toolbar
- The Chrome and Edge extension opens an AI sidebar on any web page, and a toolbar explains, translates or summarizes whatever text you select.
- Summaries of pages, videos and files
- Summarizes web pages and files, pulls highlights with timestamps from YouTube videos, and answers questions about PDFs through ChatPDF.
- Writing and translation
- Drafts and rewrites text on any page, checks grammar, suggests replies in Gmail and Outlook, and translates whole web pages for side-by-side bilingual reading.
- AI Agent tools
- Deep Research, Create Slides, Image Studio and Browser Operator run as agent tasks. Each one spends Advanced Credits from the plan's monthly allowance.
- Image and video generation
- Generates images and video with models such as Nano Banana 2, GPT Image 2, Sora 2 and Veo 3, also charged in Advanced Credits.
Plans
ChatOn
Free$0
Basic chat with a standard GPT model, multi-language support and detection of AI-written text.
Premium access (1 week)$6.99
per week (US App Store)
Advanced models, web search, image generation and file and image uploads. A second weekly item, Weekly PRO access (free trial), is listed at $7.99.
Premium access PRO+ (1 year)$59.99
per year (US App Store)
The yearly in-app purchase named on the US App Store listing. The listing does not say how PRO+ differs from the other Premium items.
Premium (other in-app purchases)$6.99 to $39.99
billing period not shown on the App Store listing
Further items named only Premium are listed at $6.99, $7.99, $29.99 and $39.99. Google Play's US listing shows $1.29 to $79.99 per item.
Monica
Free$0
40 requests to basic models a day, with limited trials of image and video generation, ChatPDF and the AI Agent. Up to 3 login devices.
Pro$8.3
per month, billed annually ($99 per year)
5,000 basic and 200 advanced model queries a month, 1,500 Advanced Credits, the AI Agent, and image and video generation.
Max$16.6
per month, billed annually ($199 per year)
Unlimited basic and advanced model access with 4,500 Advanced Credits. Formerly Unlimited and still in beta. Shown as a flash sale from $299 per year.
Ultra$82.9
per month, billed annually ($995 per year)
Unlimited basic and advanced model access with 20,000 Advanced Credits and up to 10 login devices, for heavy AI Agent use.
Ways to pay less
ChatOn
No public discounts listed.
Monica
- Annual discount
Save 17% with annual billing
The pricing page marks Pro ($99 per year) and Ultra ($995 per year) as saving 17% with annual billing. Max is shown at $199 per year, crossed out from $299, as a 33% flash sale with no end date given.
