ETOS LLM Studio vs SearchReplacePro2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ETOS LLM Studio
This AI client offers advanced features for managing local knowledge bases and virtual personas. It provides deep integration with Apple Watch, supports multiple AI models, and allows for extensive customization of AI interactions. The app aims to be a powerful, all-around assistant for users seeking more than a basic chat interface.
- Native iOS and watchOS integration
- Multi-model engine support (OpenAI, Anthropic, Google)
- Local RAG memory with SQLite vector database
- Customizable Worldbook Engine for role-playing
- Proactive intelligence cards via Daily Pulse
- Siri Shortcuts and URL Scheme integration
- Dual-engine Text-to-Speech
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Welcome to ETOS LLM Studio—a native AI client born out of a boring high school classroom that has ultimately evolved into a hardcore geek powerhouse. Here, AI is no longer a dull chatbox, but an all-around assistant seamlessly integrated into your digital life. Whether you want to awaken top-tier intelligence on your wrist at any moment, or build your exclusive local knowledge base and virtual personas on your phone, ETOS delivers an uncompromising, ultimate experience. [Core Highlights] Native Dual-Platform, A Universe on Your Wrist Deeply optimized for iOS and watchOS, refusing the compromises of watered-down versions. We have entirely rebuilt the chat interaction on Apple Watch, supporting streaming output, voice input, and complex concurrency, while achieving seamless real-time synchronization of configs, sessions, and tools across both platforms. Multi-Model Engine & Absolute Control Native support for mainstream providers like OpenAI, Anthropic (Claude), and Google (Gemini). We give the power back to you: customize request headers, dynamically configure model parameters, or even directly modify the raw JSON request body, satisfying a geek's desire for absolute API control. Memory Accumulation & Worldbook Engine Local RAG Memory: Your data belongs to you. Built with a fully local SQLite vector database supporting text chunking and embeddings, giving your AI genuine long-term memory. Worldbook Engine: Supports highly customizable character backgrounds, conditional triggers, and system prompt injections. Fully compatible with mainstream Worldbook formats, ready to unlock deep role-playing and immersive conversations anytime. Daily Pulse Break the passive "Q&A" deadlock. Every morning, the system synthesizes your long-term memory, recent conversations, and external signals to proactively generate high-value intelligence cards. These seamlessly transform into to-dos and chat prompts, forming a perfect positive feedback loop. Boundless Extension & Automation Fully integrated with MCP (Model Context Protocol), supporting remote tool calling and capability negotiation. Deeply integrated with Siri Shortcuts and connected with the local file system via URL Schemes, extending the AI's reach to every corner of your device. Supports dual-engine (System / Cloud) TTS (Text-to-Speech) reading, giving your AI a real voice. [About the Developer & Open Source Commitment] I am a high school student with a deep passion for computer technology. The original intention behind developing this app was simply that I was tired of the expensive and crippled AI software on the market. So, I decided to take matters into my own hands and build the ultimate client for my daily-use Mac and Apple Watch. Due to the extremely high Apple Developer annual fee, the App Store version charges a symbolic fee. Consider it a crowdfunding effort to help me pay off the debt, while you buy the convenience of not having to compile and tinker with it yourself. But technology should be shared; open source is my bottom line. The complete source code of ETOS LLM Studio (over 88,000 lines) is fully open-sourced on GitHub under the GPLv3 license. If you are also a geek who loves tinkering, you are completely free to pull the code, compile, and install it yourself for free. No matter how you found your way here, welcome to the world of ETOS. Are you ready to start the next conversation with your AI?
SearchReplacePro2
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Efficient bulk text‑processing tool for one‑stop content manipulation of text snippets, local files and folders. Handles row‑and‑column text copied from Excel. Core Capabilities ● Batch search, replace and delete text lines; supports ascending and descending sorting by delimiter ● Quick processing via pasted text; also supports batch import of text files for bulk content editing ● Overwrite‑write files, edit files within directories, support locating and selecting files; desktop version can directly operate local files outside the app directory ● Expert Advanced Mode with dozens of easy‑to‑use text‑manipulation functions, optimized for row‑column text copied from Excel Expert Advanced Mode ● Insert ‑ Insert auto‑incrementing numbers or custom strings as prefix / suffix; supports Arabic numerals, Chinese numerals and Roman numerals with configurable start value and step size ‑ Insert custom strings after a specified character position ● Replace ‑ Mutual conversion‑replacement between strings and line breaks ‑ Partial replacement based on character ranges ‑ Range‑based replacement via start‑end markers; supports capture groups, counting from either start or end ● Delete ‑ Deduplicate content using custom delimiters ‑ Trim N characters from line start or line end ‑ Delete content within specified character ranges ‑ Range‑based deletion via start‑end markers; supports capture groups, counting from either start or end ● Filter ‑ Filter lines by keywords: match‑include or match‑exclude modes ‑ Extract specified delimited segments by index ● Sort ‑ Ascending / descending sorting driven by delimiters ● Data Comparison ‑ Dual‑source text comparison with custom comparison and result delimiters ‑ Extract duplicate entries ‑ Extract unique differing data ‑ Bidirectional synchronizer for string‑length analysis & editing ‑ Length statistics for normal lines and quoted‑paragraph modes ‑ Count total characters, paragraph count and total paragraph length ‑ Highlight over‑length paragraphs in red according to length thresholds; auto‑recognize various line‑break formats Handy Features ● Safe Preview: preview changes before execution to prevent accidental modification of original content ● Advanced Rules: case sensitivity, regular expressions, non‑printable characters for complex text scenarios ● Expert Rules: dozens of built‑in text‑operation presets for fast processing of multi‑line text exported from Excel and similar sources ● Operation History: auto‑save task history for one‑click reuse of previous workflows ● Flexible Execution: choose single‑instance replacement or full global replacement ● Cross‑Platform: available for mobile and desktop; desktop edition supports large‑file and full‑folder batch processing Permissions Note: Pro unlocks full Expert Advanced Mode and batch‑file‑processing features. Free edition only includes basic text search‑and‑replace functions.
Screenshots
Verdict
The clearest difference is update cadence: SearchReplacePro2 at weekly against ETOS LLM Studio's every 3 weeks. SearchReplacePro2 also leads on price ($0.29 vs $2.99) and iOS requirement (13.0 vs 17.0). 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
ETOS LLM Studio costs $2.99 and SearchReplacePro2 $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.
ETOS LLM Studio ships an update every 3 weeks, SearchReplacePro2 weekly. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.
| Parameter | ETOS LLM Studio | SearchReplacePro2 |
|---|---|---|
| Price | $2.99 | $0.29 — better |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 152 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | 琳 李 | 杨军 朱 |
In-app purchases
ETOS LLM Studio
No in-app purchases
SearchReplacePro2
No in-app purchases









