ChatOn vs Fello AI

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

Fello AI

• Apple users who want one native app for many AI models
• People who want model access without managing API keys
• Turning notes and PDFs into Word, Excel or PowerPoint files

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.

Fello AI

• It is available on Mac, iPhone and iPad only; the vendor says there is no Windows or Android version.
• Free users get 5 questions per hour with premium models before the app switches to its Free AI model.
• The vendor's FAQ lists lower prices ($3.99 weekly, $9.99 monthly, $79.99 yearly) than the US App Store listing. The price charged is the one shown in the app.
• Billing runs through Apple, and existing ChatGPT, Claude or Gemini subscriptions cannot be connected or used inside the app.

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.

Fello AI

20+ models in one app

Switch between GPT, Claude, Gemini, Grok, DeepSeek, Kimi, Perplexity and other models from one menu, with no separate subscriptions. Reasoning mode is available across the major models.

Adaptive Search and Deep Research

The app decides when a question needs live web data and answers with sources. Online Search and Deep Research can also be picked by hand from the skills menu.

Skills that produce files

Describe what you need and the app builds a PowerPoint deck, Word document, Excel sheet or PDF in the conversation. A Podcast skill turns a document or topic into a two-host audio episode.

Files and images

Upload up to 16 files per conversation at up to 16 MB each, including PDFs of up to 500 pages and Office documents. Image models generate pictures and edit existing ones from a prompt.

Floating chat bar and dictation

On the Mac, Option-Space opens a chat bar over any app. Voice dictation records up to five minutes at a time and transcribes in more than 100 languages.

Projects, pins and bookmarks

Projects hold shared background, instructions and files for related chats. Conversations can be pinned, replies bookmarked, and everything searched in full text.

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.

Fello AI

• Free$0

  Up to 5 questions per hour with premium models, then a Free AI model until the hour resets. Advanced features need a paid plan.

• AI Chatbot Weekly Plan$4.99

  per week

  Unlimited questions with every premium model and Skills on Mac, iPhone and iPad under one Apple ID.

• AI Chatbot Monthly Plan$11.99

  per month

  The same unlimited access to all premium models and Skills, billed monthly through Apple.

• AI Chatbot Quarterly Plan$24.99

  per quarter

  The same unlimited access to all premium models and Skills, billed every three months through Apple.

• AI Chatbot Yearly Plan$89.99

  per year

  The same unlimited access to all premium models and Skills, billed once a year through Apple.

ChatOn

No public discounts listed.

Fello AI

• Annual discount

  About 37% less with the yearly plan

  On the US App Store the yearly plan is $89.99, compared with $143.88 for twelve months on the $11.99 monthly plan.