Liquid Apollo vs Comet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Liquid Apollo
Access a wide range of AI language models, from local on-device options to those available through external APIs. This app allows you to connect to open-source and privately hosted LLMs, offering a customizable client for diverse AI interactions.
- Local AI model support
- OpenRouter API integration
- Custom backend LLM connection
- Private on-device LLM execution
- Access to diverse open-source models
- Connect to privately hosted LLMs
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Chat with private, local AI models, connect to every open source AI, or your own locally-hosted private LLMs. Apollo is your own customizable client for accessing language models from all around the web. Local model support (powered by LEAP, a Liquid AI product): run smaller LLMs privately and securely on-device. OpenRouter support: bring an OpenRouter API key to chat with every model on the web. Just sign in by creating an account over at OpenRouter and paste it in to Apollo to access nearly every model, from open source models like Meta Llama 3, to closed source models like OpenAI’s ChatGPT-4. Custom Backend support: want ChatGPT at home? Run an LLM on your computer with tools like LM Studio or Ollama and connect to it with Apollo to host your own private ChatGPT-like mobile app for your family.
Comet
This AI-powered browser serves as a personal assistant, enhancing focus and streamlining workflows. It offers unified AI search, instant context, and automation across websites for tasks like summarizing, shopping, scheduling, and research.
- Unified AI search
- Instant context and automation
- Summarize, shop, schedule, research
- Personalized workflow adaptation
- Tab and inspiration management
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Comet is an AI-powered browser that acts as a personal assistant and thinking partner. Boost your focus, streamline your workflow, and turn curiosity into momentum. · Unified AI search, instant context, and automation across every site. Summarize, shop, schedule, and research—directly in the browser. · Enjoy the web and let the AI assistant handle your chores · Do everything on your to-do list faster with Comet · Comet adapts to how you think and work, learning your habits to keep you organized. Never lose track of tabs or inspiration. Terms of Service: https://www.perplexity.ai/tos Privacy Policy: https://www.perplexity.ai/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Liquid Apollo at none against Comet's 3. Comet's advantage is rating (4.7 vs 4.5) and ratings volume (7.8K vs 681). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Comet sells 3 in-app purchases, starting at $20.00 per month. Liquid Apollo asks for nothing beyond the download.
Comet holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Comet has 7.8K ratings behind it against 681, so its average is the more settled of the two. Written reviews complicate that: 68% of Liquid Apollo's written reviews are positive against 65% of Comet's, so the app with the better star average is not the one people write more warmly about.
Liquid Apollo ships an update every 8 days, Comet every 9 days. Both last shipped on November 14, 2026.
| Parameter | Liquid Apollo | Comet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (681 ratings) | 4.7 (7.8K ratings) — better |
| Positive reviews | 67.8% of reviews — better | 65.0% of reviews |
| Number of ratings | 681 | 7.8K — better |
| Update frequency | Every 8 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 158 MB | 299 MB |
| Age rating | 12+ | 17+ |
| Developer | Liquid AI, Inc. | Perplexity AI, Inc. |
Customer experience
Liquid Apollo
Comet
Bugs and requests
Liquid Apollo
Reported bugs
6 issues- Unable to download Liquid Models
- Deleted locally installed models
- OpenRouter support crashes the app
- Voice list doesn't load all available voices
- Backspace lag leading to unintended text deletion
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- Inconsistent behavior when using code blocks
Requested features
10 requests- Add support for more open-source models (e.g. Gemma 3)
- Implement image generation and upload functionality
- Allow scheduling of asynchronous tasks
- Integrate with Hugging Face model repository
- Provide built-in prompt library
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- Add MCP (Multimodal Conversation Protocol) support
- Enable direct OpenAI API integration
- Improve voice chat functionality
- Add option to delete all chat history
- Implement search and filtering for chat history
Comet
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Liquid Apollo
No in-app purchases
Comet
- Perplexity Pro$20.001 Month
- Perplexity Pro$200.001 Year
- Perplexity Max$200.001 Month
