FLEX Explorer vs MCP Agent
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.
MCP Agent
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MCP Agent connects to the Model Context Protocol (MCP) servers you use — and lets you ask questions or run their tools by chat, by voice, or through Siri and Shortcuts. Bring your own AI provider key (Anthropic or OpenAI), or run fully on-device. CONNECT YOUR TOOLS - Add any remote MCP server — Power BI / Microsoft Fabric, Atlassian (Jira & Confluence), Notion, GitHub, Linear, DeepWiki, and more. - Flexible sign-in: bearer token, OAuth 2.1, or Microsoft Entra device code. - Your API keys and server credentials stay on your device and are sent only to the services you choose. ASK ANYTHING - Natural-language chat that picks the right tool and fills in the arguments for you. - On-device (private, free) or cloud models (Claude, OpenAI) for the heaviest questions. - Write actions ask for confirmation before they run. VOICE & SIRI - Hands-free voice conversations, with spoken follow-up questions. - Say "Hey Siri, Ask MCP Agent", then ask your question for spoken answers and a live result card. - Build your own Siri trigger phrases in Shortcuts. - Natural voices: download Enhanced/Premium, use your Personal Voice, or cloud TTS. PRIVATE BY DESIGN - No analytics, no tracking, no accounts. You bring your own API keys. - Everything is configured by you and runs against the services you choose. MCP PRO Unlock unlimited servers and voice conversations with a Pro subscription. MCP Agent is for developers and power users who want their own tools, data, and assistants in one place — on their terms. MCP PRO SUBSCRIPTION - Pro Monthly ($2.99) or Pro Yearly ($19.99), each with a 7-day free trial. - Unlocks unlimited MCP servers and voice conversations. - Payment is charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://github.com/Think-Define-Create/MCP-Agent/blob/main/Privacy%20-Policy.md
Screenshots
Verdict
The clearest difference is in-app purchases: FLEX Explorer at none against MCP Agent's 2. FLEX Explorer also leads on iOS requirement (8.0 vs 26.0). 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. MCP Agent sells 2 in-app purchases, starting at $2.99 per month. FLEX Explorer asks for nothing beyond the download.
| Parameter | FLEX Explorer | MCP Agent |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 48 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Honeywell International, Inc. | Roberto Moreno |
In-app purchases
FLEX Explorer
No in-app purchases
MCP Agent
- MCP Pro (Monthly)7 Days trial$2.991 Month
- MCP Pro (Yearly)7 Days trial$19.991 Year









