FLEX Explorer vs Joey MCP Client Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FLEX Explorer
This application allows users to connect to OPC UA Servers, browse their address spaces, and read/write data values. It also enables monitoring of data changes and attributes, simplifying the development of UA Client applications for iOS.
- Connect to OPC UA Servers
- Browse address space
- Read and write values
- Monitor data changes
- Monitor attributes
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FLEX Explorer OPC UA Client features: - Connect to any OPC UA Servers - Browse the address space - Read and Write values - Monitor data changes and attributes FLEX Explorer OPC UA Client is built using the Matrikon Flex OPC UA Client SDK, which simplifies developing UA Client applications for iOS.
Joey MCP Client Lite
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Joey MCP Client Lite is an open-source AI chat app that lets you connect to any AI model and extend it with powerful tools and services — both remote and right on your device. Chat with any AI model Bring your own AI in whichever way suits you: ▶ OpenRouter — access hundreds of leading models including GPT, Claude, Gemini, Deepseek and more. Connect via OAuth with configurable spending limits, so you stay in control — no surprise bills. ▶ Any OpenAI-compatible endpoint — point Joey at your own base URL and API key to use OpenAI directly, a self-hosted model, Ollama, or any compatible provider. Connect your tools and services Joey supports the Model Context Protocol (MCP), an open standard that lets AI models interact with external tools and services. Connect to remote MCP servers over HTTP, giving your conversations access to services like Google Drive, Slack, email, calendars, CRMs, and more. On-device tools Give the AI safe, built-in access to your device — no server required. Ask it to check the time anywhere, get your location, look up contacts, draft a message or email, start a call, or search and create calendar events and reminders. Actions that leave the app (like sending a message or placing a call) always require a tap from you. Image support Send images to vision-capable models directly from your camera, gallery, or clipboard. Great for asking questions about screenshots, documents, and photos. Advanced MCP features Joey goes beyond basic tool calling: ▶ Sampling — MCP servers can request additional LLM completions, enabling complex multi-step AI workflows ▶ Elicitation — MCP servers can present interactive forms to gather input from you mid-conversation Lite vs Premium Joey MCP Client Lite includes core functionality, with an optional one-time in-app purchase to unlock everything. Included in Lite: ▶ Chat with any model via OpenRouter or your own OpenAI-compatible endpoint ▶ One active conversation ▶ One MCP server ▶ Image support, sampling, and elicitation Joey Premium (one-time purchase — yours forever) unlocks: ▶ Unlimited conversation history — keep every chat instead of just the current one ▶ Unlimited MCP servers — connect as many as you like ▶ On-device tools — time, location, contacts, messaging, calls, email, calendar, and reminders Open source Joey is fully open source. Everything is unlocked when you build it yourself. Browse the code, report issues, or contribute on GitHub: https://github.com/benkaiser/joey-mcp-client-flutter
Screenshots
Verdict
The clearest difference is in-app purchases: FLEX Explorer at none against Joey MCP Client Lite's 1. FLEX Explorer also leads on iOS requirement (8.0 vs 13.0). On price, ads 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
Both are free to download. Joey MCP Client Lite sells 1 one-off in-app purchase. FLEX Explorer asks for nothing beyond the download.
| Parameter | FLEX Explorer | Joey MCP Client Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 48 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Honeywell International, Inc. | Benjamin Kaiser |
In-app purchases
FLEX Explorer
No in-app purchases
Joey MCP Client Lite
- Premium$4.99
Questions
Is FLEX Explorer free?
Is Joey MCP Client Lite free?
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