Shortlist by what you need
Start here if you know why you are leaving Lunabot.
Want the closest match?
ChatKitMost similar to Lunabot in what it does, its category and its price.
Visit (opens ChatKit in a new tab)Need a free plan?
AlterHas a free plan, rated 4.0 out of 5.
Visit (opens Alter in a new tab)Want the lowest price?
HaloMateFrom $9.9/mo, the lowest starting price here.
Visit (opens HaloMate in a new tab)Want the best rated?
AtuaRated 4.1 out of 5 in our review, against 3.5 for Lunabot.
Visit (opens Atua in a new tab)
At a glance
Green means better than Lunabot, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 LunabotBaseline | 3.5 | Free | Yes | One AI assistant, five models (GPT-4o, Gemini, Claude, Mistral, Ollama), working identically across browser, mobile, desktop, Telegram and even Siri - no separate API key or ChatGPT account needed. | |
| ChatKit | 3.4−0.1 | $5/mo | No | A refined ChatGPT interface across OpenAI, Gemini, Azure and custom models - bring your own API key or buy credits at a flat 1:1 rate, with URL context, full chat-history search and Whisper voice input. | vs Lunabot |
| Atua | 4.1+0.6 | $29/mo | No | Mac app that puts AI commands behind a hotkey in any app: select text, capture a screenshot or speak, then run a custom command on the model of your choice using your own API key, with MCP server support and system tools. | vs Lunabot |
 IntelliBar | 3.8+0.3 | Not listed | No | Native Mac menu-bar AI client that talks to OpenAI, Anthropic, Google and local models with your own keys, sold as a one-time license. | vs Lunabot |
| HaloMate | 3.7+0.2 | $9.9/mo | Yes | One workspace over GPT, Claude, Gemini and DeepSeek, with separate memory per assistant. | vs Lunabot |
 PaletteBrain | 3.4−0.1 | $29/mo | No | Select text in any Mac app, hit Space, run a custom AI command, paste the result back - no window switching, bring your own OpenAI key, pay once for lifetime access. | vs Lunabot |
| Alter | 4.0+0.5 | $20/mo | Yes | Mac assistant that executes actions across native apps instead of answering in a chat window | vs Lunabot |
 Merlin | 4.0+0.5 | $15/mo | Yes | Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut. | vs Lunabot |
 Merlio | 3.7+0.2 | $14.99/mo | No | All-in-one AI workspace bundling chat, image, video, and code generation from 40-plus models. | vs Lunabot |
The alternatives in detail
In order of how closely each one matches Lunabot.
ChatKit
3.4$5/mo
vs Lunabot−0.1
A refined ChatGPT interface across OpenAI, Gemini, Azure and custom models - bring your own API key or buy credits at a flat 1:1 rate, with URL context, full chat-history search and Whisper voice input.
- Multi-model support (OpenAI, Gemini, Azure, custom models)
- Bring-your-own-API-key or purchase flat-rate credits
- URL-as-context and full-text chat history search
Flat 1:1 credit pricing avoids the markup many AI chat wrappers add
Requires either an existing API key or purchasing credits - no fully free tier
Atua
4.1$29/mo
vs Lunabot+0.6
Mac app that puts AI commands behind a hotkey in any app: select text, capture a screenshot or speak, then run a custom command on the model of your choice using your own API key, with MCP server support and system tools.
- Hotkey commands from any Mac app
- Context from selected text, screenshots, clipboard, voice and screen OCR
- Custom commands with their own hotkey, model and output mode
One-time $29 license with no subscription
Mac only
IntelliBar
3.8Not listed
vs Lunabot+0.3
Native Mac menu-bar AI client that talks to OpenAI, Anthropic, Google and local models with your own keys, sold as a one-time license.
- One menu-bar interface for OpenAI, Anthropic, Google, Grok, DeepSeek, Perplexity and other models
- Local models through Ollama
- Compare the same prompt across several models
No app subscription, and you pay only for the model usage you choose
Needs your own provider keys or accounts, so running costs vary
HaloMate
3.7$9.9/mo
vs Lunabot+0.2
One workspace over GPT, Claude, Gemini and DeepSeek, with separate memory per assistant.
- Switch or compare GPT, Claude, Gemini and DeepSeek in one chat
- AI Mates with isolated memory profiles
- Projects bundling files and conversations persistently
Separate memory per assistant, which single-model products still get wrong
Daily credit allocation penalises bursty work
PaletteBrain
3.4$29/mo
vs Lunabot−0.1
Select text in any Mac app, hit Space, run a custom AI command, paste the result back - no window switching, bring your own OpenAI key, pay once for lifetime access.
- Works with any macOS app or website via keyboard shortcut
- Custom AI commands - grammar, translation, summarization, code refactoring
- Bring-your-own OpenAI/Azure API key, pay-as-you-go
Genuine lifetime pricing instead of an ongoing subscription
Mac-only - no Windows or Linux version
Alter
4.0$20/mo
vs Lunabot+0.5
Mac assistant that executes actions across native apps instead of answering in a chat window.
- System-wide macOS assistant triggered by shortcut or voice
- Executes actions inside native apps rather than returning chat text
- Reads on-screen context to skip copy-and-paste steps
Removes the copy-paste loop between a chat window and real work
macOS only, with no Windows or Linux build
Merlin
4.0$15/mo
vs Lunabot+0.5
Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut.
- Ctrl/Cmd+M shortcut for AI access on any website
- Access to GPT-4, Claude 3 Opus, Gemini, DeepSeek, and Mistral Large from one interface
- Dedicated summarization for YouTube videos, PDFs, and articles
Free tier's 102 daily queries is generous enough for real evaluation before paying
'Unlimited fair access' marketing overstates a Pro plan that's actually credit-capped
Merlio
3.7$14.99/mo
vs Lunabot+0.2
All-in-one AI workspace bundling chat, image, video, and code generation from 40-plus models.
- Access to 40-plus AI models across chat, image, video, and code from one login
- Shortcut commands like '//' for task-specific generation
- YouTube video summarization in one click
Consolidates multiple AI subscriptions into one bill, which can cut total spend
No perpetual free plan, unlike some bundler competitors
FAQ
Questions people ask
Is Lunabot free?
Lunabot has a free plan.
What is the best free alternative to Lunabot?
Alter is the highest-rated alternative here with a free plan (4.0 out of 5). Other free options: Merlin, HaloMate.
What is the cheapest alternative to Lunabot?
Among paid plans, ChatKit has the lowest starting price (from $5/mo). If you need it free, start with Alter.
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.