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Head to head · 2026

ChatGPT vs KnowItAll AI Chat

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

ChatGPT

The product that took generative AI mainstream in late 2022

4.8$20/mo

Visit ChatGPT (opens ChatGPT in a new tab)

KnowItAll AI Chat

IPhone chatbot and writing assistant giving access to Claude, ChatGPT, Gemini and Grok from one app,…

3.7Free

Visit KnowItAll AI Chat (opens KnowItAll AI Chat in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: KnowItAll AI Chat does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    ChatGPT

    4.8 against 3.7

  • Same job?

    Yes

    Both are Chatbots tools

Side by side

Compared onChatGPTKnowItAll AI Chat
Our rating4.8Better3.7
Starts at$20/moFree
Free planYesYes
CategoryChatbotsChatbots
Plans
  • FreeFree
  • Plus$20/mo
  • Team$25/user/mo
Free
Key features
  • Broad, frequently updated GPT model family
  • Image generation, voice mode, and web browsing built in
  • Custom GPTs for configuring specialized assistants
  • File and image analysis
  • Largest user base of any chatbot
  • Access to Claude, ChatGPT, Gemini and Grok from one app
  • A 4.7 out of 5 App Store rating from 1,500-plus ratings
  • Updated as recently as December 2025
  • Free to download
Pros
  • Largest user base means the most third-party tutorials and integrations
  • Broad feature set covers text, voice, image, and file tasks in one app
  • Frequent model updates keep capabilities current
  • A single app instead of switching between four provider apps
  • A solid, verifiable App Store rating and review count
Cons
  • Free tier usage limits are tighter than some competitors' free access
  • Scale and broad feature set can feel less focused than specialized tools
  • Higher-tier plans needed for the most current model versions
  • A third-party wrapper, not an official app from any model provider
  • iPhone only, with no web or Android version
  • The marketing site itself gives almost no detail beyond the App Store listing
CompanyOpenAI, founded 2022Andrew Lee Ventures LLC

Prices come from each vendor's pricing page, last checked 20260923. Check the vendor before you buy.

FAQ

Questions people ask

Is ChatGPT better than KnowItAll AI Chat?

In our reviews ChatGPT scores 4.8 and KnowItAll AI Chat scores 3.7. The better pick depends on the job. ChatGPT: The product that took generative AI mainstream in late 2022. KnowItAll AI Chat: IPhone chatbot and writing assistant giving access to Claude, ChatGPT, Gemini and Grok from one app, free to download.

Which is cheaper, ChatGPT or KnowItAll AI Chat?

ChatGPT: from $20/mo. KnowItAll AI Chat: free.

Do ChatGPT and KnowItAll AI Chat have free plans?

Yes, both have a free plan.

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