ChatGPT vs ChatOn

ChatGPT

• General-purpose help with writing, questions and brainstorming
• People who want chat, voice, images and web search in one assistant
• Trying an AI assistant at no cost before paying

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

ChatGPT

• Pro is sold at three price points, $100, $200 or $500 per month, well above the $20 Plus plan.
• Business requires at least 2 users. SCIM, EKM and role-based access control are reserved for Enterprise and Edu.
• OpenAI began testing ads in the free version for logged-in adult US users in January 2026, according to Wikipedia.
• OpenAI's pricing page says the Go plan may include ads.

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.

ChatGPT

Conversational help

Answers questions, drafts and reworks text, explains topics and reads uploaded photos in a chat, with history synced across your devices.

Image generation

Creates original images from a description, or transforms existing images from a short instruction.

Advanced Voice Mode

Hold a real-time spoken conversation in the mobile app by tapping the soundwave icon.

Search and Deep Research

ChatGPT Search draws on the web for more up-to-date answers, and Deep Research generates a report from extensive web searches.

Codex

A coding agent that runs on the web, in a CLI, in an IDE extension and on iOS from the Plus plan, with integrations such as automatic code review and Slack.

GPTs and agents

GPTs customize ChatGPT's behavior for a specific use case, and ChatGPT agent carries out multi-step tasks.

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.

ChatGPT

• Free$0

  Unlimited text chats, with limits on uploads, image creation, voice chats, deep research and memory.

• Go$8

  per month

  More messages with tools, more uploads, image creation and voice chats than Free, and longer memory. OpenAI notes this plan may include ads.

• Plus$20

  per month

  Advanced reasoning models, expanded deep research and memory, plus projects, scheduled tasks and custom GPTs.

• Business$20

  per user / month, billed annually

  For 2 or more users: a dedicated workspace with admin controls, SAML SSO and MFA. $25 per user / month when billed monthly.

• ProFrom $100

  per month

  A choice of three usage tiers at $100, $200 or $500 per month, with the highest limits, pro reasoning and an always-on agent.

• Enterprise & EduCustom

  Sold through sales, with priority request processing, SCIM, EKM, user analytics, domain verification and role-based access control.

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.

ChatGPT

• Annual discount

  Business is cheaper when billed annually

  OpenAI's pricing page lists Business at $20 per user / month when billed annually, against $25 per user / month when billed monthly.

ChatOn

No public discounts listed.