xEngine for Safari vs Liquid Apollo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xEngine for Safari
This utility app allows users to customize their default search engine within Safari. It supports a wide variety of popular and AI-powered search engines, and enables users to add their own custom options while prioritizing privacy through local processing.
- Customize Safari's default search engine
- Support for popular search engines
- Add custom AI search engines
- Local data processing for privacy
- Manage your own search engines
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xEngine — Customize Your Safari's Default Search Engine Tired of Safari's limited search options? xEngine gives you control. Switch between a wide range of search engines — or add your own, including AI engines like ChatGPT, Claude, Perplexity, Gemini, and Duck.ai. Privacy is a top priority: xEngine requests only the permissions it needs. On iOS 17, iPadOS 17, macOS 14 and later, it requires permission to view browsing history to function properly within Safari, but it only accesses the current session's URL to identify the search engine. All processing is done locally, and your personal information never leaves your device, ensuring your privacy is fully protected. Key Features: - Choose from popular engines like Brave, Yandex, Startpage, ChatGPT, Claude, Perplexity, Gemini, Duck.ai, and more - Add and manage your own custom search engines - Local processing only — xEngine never collects your data Simple. Private. Yours. Download xEngine and search the web your way.
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.
Screenshots
Verdict
The clearest difference is price: Liquid Apollo at Free against xEngine for Safari's $1.99. Liquid Apollo also leads on rating (4.5 vs 3.3) and update cadence (every 8 days vs every 6 months). xEngine for Safari's advantage is iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support 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
Liquid Apollo is free to download; xEngine for Safari costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Liquid Apollo holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: Liquid Apollo has 681 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 50% of xEngine for Safari's written reviews are positive against 68% of Liquid Apollo's.
xEngine for Safari ships an update every 6 months, Liquid Apollo every 8 days. Both last shipped on November 14, 2026.
| Parameter | xEngine for Safari | Liquid Apollo |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.3 (6 ratings) | 4.5 (681 ratings) — better |
| Positive reviews | 50.0% of reviews | 67.8% of reviews — better |
| Number of ratings | 6 | 681 — better |
| Update frequency | Every 6 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 158 MB |
| Age rating | 4+ | 12+ |
| Developer | 磊 汪 | Liquid AI, Inc. |
Customer experience
xEngine for Safari
Liquid Apollo
Bugs and requests
xEngine for Safari
Not enough reviews yet to summarise bugs or 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
In-app purchases
xEngine for Safari
No in-app purchases
Liquid Apollo
No in-app purchases
Questions
Is xEngine for Safari free?
Is Liquid Apollo free?
Which has better reviews, xEngine for Safari or Liquid Apollo?
Do xEngine for Safari or Liquid Apollo have ads?
Which is updated more often, xEngine for Safari or Liquid Apollo?
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