Shortlist by what you need
Start here if you know why you are leaving KnowItAll AI Chat.
Want the closest match?
Prompt StormMost similar to KnowItAll AI Chat in what it does, its category and its price.
Visit (opens Prompt Storm in a new tab)Need a free plan?
Duck.aiHas a free plan, rated 4.3 out of 5.
Visit (opens Duck.ai in a new tab)Want the lowest price?
Ninjachat AIFrom $11/mo, the lowest starting price here.
Visit (opens Ninjachat AI in a new tab)Want the best rated?
DapperGPTRated 3.7 out of 5 in our review, against 3.7 for KnowItAll AI Chat.
Visit (opens DapperGPT in a new tab)
At a glance
Green means better than KnowItAll AI Chat, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 KnowItAll AI ChatBaseline | 3.7 | Free | Yes | IPhone chatbot and writing assistant giving access to Claude, ChatGPT, Gemini and Grok from one app, free to download. | |
| Prompt Storm | 2.7−1.0 | Not listed | No | Chrome extension from iMedia Revolution, LLC bundling curated prompts for ChatGPT, Gemini and Claude across research, writing, marketing and coding tasks. | vs KnowItAll AI Chat |
 HotBot AI | 3.0−0.7 | Free | Yes | One free chat interface for ChatGPT, Claude, Gemini, and more - write, learn, create images, summarize, analyze data, and translate, all in one place. | vs KnowItAll AI Chat |
 Lorka AI | 3.5−0.2 | $19.99/mo | No | Subscription hub that bundles ChatGPT, Claude, Gemini, Grok, and other chat models into one flat-rate workspace. | vs KnowItAll AI Chat |
| Duck.ai | 4.3+0.6 | Free | Yes | Private AI chat from DuckDuckGo with several models and no account needed | vs KnowItAll AI Chat |
| DapperGPT | 3.7Same | Free | Yes | A customizable interface layer that unifies ChatGPT, Claude, Gemini, and other models in one workspace. | vs KnowItAll AI Chat |
| Ninjachat AI | 3.6−0.1 | $11/mo | No | All-in-one AI subscription bundling ChatGPT, Claude, Gemini, and 50-plus writing and media tools into one flat monthly fee. | vs KnowItAll AI Chat |
 Chathub | 3.4−0.3 | Free | Yes | 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. | vs KnowItAll AI Chat |
 GPTGO | 3.7Same | Free | Yes | A hybrid search engine that pairs Google results with unlimited free ChatGPT answers. | vs KnowItAll AI Chat |
The alternatives in detail
In order of how closely each one matches KnowItAll AI Chat.
Prompt Storm
2.7Not listed
vs KnowItAll AI Chat−1.0
Chrome extension from iMedia Revolution, LLC bundling curated prompts for ChatGPT, Gemini and Claude across research, writing, marketing and coding tasks.
- Curated prompt library for ChatGPT, Gemini and Claude
- Prompts organized by task: research, writing, marketing, coding
- Turns a chatbot into a stand-in coach, advisor or expert persona
Saves time versus writing prompts from scratch for common tasks
Footer copyright reads 2023 with no visible update history
HotBot AI
3.0Free
vs KnowItAll AI Chat−0.7
One free chat interface for ChatGPT, Claude, Gemini, and more - write, learn, create images, summarize, analyze data, and translate, all in one place.
- Single interface for ChatGPT, Claude, Gemini, and other leading models
- Writing help and writing improvement
- AI image creation
Access to multiple leading AI models without separate subscriptions
Unclear whether usage limits or premium tiers exist beyond the free offering
Lorka AI
3.5$19.99/mo
vs KnowItAll AI Chat−0.2
Subscription hub that bundles ChatGPT, Claude, Gemini, Grok, and other chat models into one flat-rate workspace.
- Access to ChatGPT, Claude, Gemini, Grok, DeepSeek, Qwen, Perplexity, and Mistral under one login
- Persistent conversation thread that survives switching between models
- Side-by-side prompt comparison across multiple models at once
Flat $19.99/month replaces what could be $140+ across individual model subscriptions
Single-person, unfunded company as of 2026, long-term continuity is unproven
Duck.ai
4.3Free
vs KnowItAll AI Chat+0.6
Private AI chat from DuckDuckGo with several models and no account needed.
- Chat with several AI models from different providers in one interface
- No account needed to start chatting
- Requests are anonymized: DuckDuckGo removes identifying data such as your IP address before sending them to providers
Genuine anonymized access removes the need for separate provider accounts
Daily message limits on the free tier restrict heavy use
DapperGPT
3.7Free
vs KnowItAll AI ChatSame
A customizable interface layer that unifies ChatGPT, Claude, Gemini, and other models in one workspace.
- Single interface across OpenAI, Anthropic, Google, Mistral, Grok, and Llama models
- Chrome extension for using the assistant across other websites
- AI-generated notes tied to chat conversations
Bring-your-own-key pricing means users pay providers directly instead of a markup
Requires a user to already hold API keys from providers, which adds setup friction for non-technical users
Ninjachat AI
3.6$11/mo
vs KnowItAll AI Chat−0.1
All-in-one AI subscription bundling ChatGPT, Claude, Gemini, and 50-plus writing and media tools into one flat monthly fee.
- Unified access to GPT-5, Claude, Gemini, Grok, and Perplexity under one login
- Library of 50-plus specialized writing tools beyond general chat
- Image and short-form music generation bundled into the same subscription
Flat $11/month fee undercuts paying for several individual frontier-model subscriptions
No ongoing free tier; the $1 trial still requires a card and converts to a paid plan
Chathub
3.4Free
vs KnowItAll AI Chat−0.3
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.
- 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
Genuinely broad model access under one subscription instead of many
Free tier is limited compared to the paid comparison breadth
GPTGO
3.7Free
vs KnowItAll AI ChatSame
A hybrid search engine that pairs Google results with unlimited free ChatGPT answers.
- Combines standard Google search results with a ChatGPT-generated answer on one page
- Chrome extension redirects default search to the hybrid results page
- No sign-up or OpenAI account required to access ChatGPT-style responses
Removes the OpenAI account and usage-limit barrier to accessing ChatGPT-style answers
No official mobile app, only a website and Chrome extension
FAQ
Questions people ask
Is KnowItAll AI Chat free?
KnowItAll AI Chat has a free plan.
What is the best free alternative to KnowItAll AI Chat?
Duck.ai is the highest-rated alternative here with a free plan (4.3 out of 5). Other free options: DapperGPT, GPTGO, Chathub.
What is the cheapest alternative to KnowItAll AI Chat?
Among paid plans, Ninjachat AI has the lowest starting price (from $11/mo). If you need it free, start with Duck.ai.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.