AI Agent Builder vs chat4000
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
AI Agent Builder
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This app turns your iPhone and iPad into a complete workshop for building, customizing, and running your own AI agents. Design an agent's personality, connect it to tools, chain multi-step workflows, and chat with it in real time โ all without writing a single line of code. NEW IN VERSION 2.0 Template Gallery โ Skip the blank page. This app now includes a dedicated Templates tab with ten professionally designed, ready-to-use agents: Research Assistant, Code Reviewer, Content Writer, Data Analyst, Travel Planner, Study Tutor, and more. Add any template to your library in a single tap, or open it in the builder to customize. Redesigned Dashboard โ The home screen is now a dashboard. See your agent stats at a glance, jump into common actions instantly, and browse featured templates the moment this app opens. Demo Mode โ Explore every feature with realistic sample data, with no API key required. BUILD AGENTS YOUR WAY A 12-step guided builder walks you through every part of your agent Choose from multiple AI providers: Claude, GPT, Gemini, and Groq Add your own OpenAI-compatible providers such as Ollama, Together AI, Mistral, and DeepSeek 20 built-in tools including web search, calculator, weather, translation, email, and file operations Connect Model Context Protocol (MCP) servers for extended tool access Create sub-agents that your main agent can delegate to Design visual workflows with conditions, loops, and branching Fine-tune temperature, token limits, and streaming behavior CHAT AND ITERATE Test your agents in a live chat with real-time tool execution Export agents as JSON to back up, reuse, or share Edit any agent at any time in the builder PRIVACY FIRST Your API keys are stored locally on your device and are only ever sent to the AI provider you choose. This app does not collect or transmit your data to any third party. NOTE: This app requires your own API key from an AI provider. Groq offers a free tier, so you can get started at no extra cost. Demo Mode lets you preview this app with no key at all.
chat4000
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chat4000 is the iPhone companion for OpenClaw, designed to feel faster, cleaner, and more polished to use every day. Use chat4000 to: โข Connect to your OpenClaw setup from iPhone โข Send and receive messages across your paired devices โข Record and send voice messages โข Receive notifications when new messages arrive โข Quickly jump back into conversations with shortcuts on supported devices chat4000 gives you a more refined mobile experience for OpenClaw, with secure paired-device communication, responsive chat, and a simpler interface built for iPhone. An existing OpenClaw setup is required for full functionality.
Screenshots
Verdict
The clearest difference is price: chat4000 at Free against AI Agent Builder's $2.99. AI Agent Builder's advantage is chart position (#181 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
chat4000 is free to download; AI Agent Builder costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AI Agent Builder ships an update every 10 days, chat4000 fortnightly. The most recent releases landed on September 15, 2026 and July 25, 2026 respectively.
| Parameter | AI Agent Builder | chat4000 |
|---|---|---|
| Price | $2.99 | Free โ better |
| Update frequency | Every 10 days โ better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Best chart rank | #181 โ better | โ |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 6 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuhsiu Lai | NeonNode |
In-app purchases
AI Agent Builder
No in-app purchases
chat4000
No in-app purchases





