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Head to head · 2026

Chathub vs KnowItAll AI Chat

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

Chathub

One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models…

3.4Free

Visit Chathub (opens Chathub 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: Chathub does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    KnowItAll AI Chat

    3.4 against 3.7

  • Same job?

    Yes

    Both are Chatbots tools

Side by side

Compared onChathubKnowItAll AI Chat
Our rating3.43.7Better
Starts atFreeFree
Free planYesYes
CategoryChatbotsChatbots
PlansFreeFree
Key features
  • Side-by-side comparison across GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ models
  • AI image generation via FLUX.2, Stable Diffusion, and Nano Banana
  • File and document analysis with web search integration
  • Code preview built into the chat interface
  • Native apps across web, iOS, Android, Windows, and Mac
  • 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
  • Genuinely broad model access under one subscription instead of many
  • Real, meaningful scale - 300,000+ active users
  • True cross-platform native apps, not just a responsive website
  • A single app instead of switching between four provider apps
  • A solid, verifiable App Store rating and review count
Cons
  • Free tier is limited compared to the paid comparison breadth
  • Unlimited tier ($39/month) is a real cost for casual users
  • Value depends on actually wanting multi-model comparison rather than one reliable assistant
  • 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
CompanyChatHubAndrew 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 Chathub better than KnowItAll AI Chat?

In our reviews Chathub scores 3.4 and KnowItAll AI Chat scores 3.7. The better pick depends on the job. Chathub: One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models side by side under a single subscription, used by 300,000+ people. 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, Chathub or KnowItAll AI Chat?

Chathub: free. KnowItAll AI Chat: free.

Do Chathub and KnowItAll AI Chat have free plans?

Yes, both have a free plan.

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