Comparison

Joey MCP Client vs OneOpen

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Joey MCP Client

Features
Read full description

Joey MCP Client is an open-source AI chat app that lets you connect to any AI model through OpenRouter and extend those models with powerful tools and services. Chat with any AI model Access hundreds of leading AI models through OpenRouter, including GPT, Claude, Gemini, Deepseek and more. Joey connects via OAuth with configurable spending limits, so you stay in control of your usage โ€” no surprise bills, no API keys to manage. 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 multiple remote MCP servers simultaneously over HTTP, giving your AI conversations access to services like Google Drive, Slack, email, calendars, CRMs, and more. Image support Send images to vision-capable models directly from your camera, gallery, or clipboard. Great for asking questions about screenshots, documents, photos, and more. Advanced MCP features Joey goes beyond basic tool calling with support for advanced MCP capabilities: โ–ถ Sampling - MCP servers can request additional LLM completions, enabling complex multi-step AI workflows โ–ถ Elicitation - MCP servers can present interactive forms to gather input from you mid-conversation Open source Joey is fully open source. Browse the code, report issues, or contribute on GitHub: https://github.com/benkaiser/joey-mcp-client-flutter

About

OneOpen

View a wide range of file types, including documents, web pages, CAD drawings, and 3D models, directly on your iPhone and iPad. Easily open and manage archives, EPUBs, emails, and certificates. Offers basic viewing for free with advanced features available through a subscription.

Highlights
  • Multi-format file viewing
  • HTML and Markdown preview
  • CAD and 3D model rotation
  • Archive browsing and extraction
  • EPUB reader
  • Certificate inspection
  • File information display
Features
Read full description

OneOpen is a multi-format file viewer for iPhone and iPad. Open documents, web pages, CAD drawings, 3D models and archives from Files, Mail and apps that support document sharing. HTML and Markdown Preview HTML, HTM and XHTML pages. Read Markdown / MD notes with headings, a table of contents, tables, code fences, task lists, footnotes and reference links. ZIP websites retain local images, styles and relative resources. Markdown in packages can display supported local images. Ordinary HTML allows restricted HTTPS/WSS networking by default, with offline and Safe Preview options. Markdown does not run scripts or load remote images. CAD drawings and 3D models (Advanced) โ€ข Pan, zoom and toggle layers in supported DWG/DXF 2D model-space drawings. โ€ข Rotate STEP/STP, IGES/IGS, BREP/BRP, STL, OBJ and PLY models, including PLY vertex colors and point clouds. โ€ข ZIP a complete OBJ model folder to load supported MTL materials, PNG/JPEG textures, normals, transparency and groups. A standalone OBJ shows geometry without reading private neighboring files. โ€ข Preview supported static GLB / glTF 2.0 geometry, nodes, basic materials and PNG/JPEG textures. Model ZIPs retain relative resources. JSON and model information have separate views. โ€ข USDZ starts in object view; choose AR when needed. โ€ข Included models and engineering drawings demonstrate supported features. Everyday viewing is free Read PDF, Office/iWork, images, audio/video, JSON, XML, YAML, CSV, code and text. PDF supports continuous reading, zoom, search and page controls that hide while scrolling. Edit supported text in an independent working copy. Archives and EPUB Browse supported ZIP/7Z/RAR/TAR, GZ/BZ2/XZ/Zstandard/LZ4/LZMA/Z, CAB/CPIO/AR/XAR/ISO9660/LHA and TAR combinations. Open/share entries; extract to Files. ZIP/EPUB are free; others need Advanced Access. EPUB follows the declared chapter order, with a table of contents, previous/next controls, current-chapter search and reading settings. Pages stay offline. A chapter error keeps navigation available. DRM, media overlays, annotations and whole-book search are unsupported. Email, certificates and information Decode EML headers, body text, common character encodings and attachment filenames. Open or share readable attachments independently. HTML email becomes text without loading remote content. Decryption, signature verification and TNEF extraction are not provided. Inspect public CER, DER, CRT and PEM certificate subjects, issuers, validity, algorithms, public keys, usages and SHA-256 fingerprints. Certificates are never installed and device trust is not evaluated. File Information includes PDF metadata, image/camera properties, media tracks, text encoding/line counts and archive summaries. Open from other apps Skippable onboarding uses real iOS screenshots to explain More, Edit and favorite ordering in the share sheet. Revisit it in Settings. Categories, Recents and widgets help you return to files. Advanced Access and compatibility An annual membership or a one-time lifetime purchase unlocks the same specialized features. Check format details before purchasing. DWG supports selected 2D model-space content; DXF supports text files. CAD editing, engineering measurement, native SolidWorks and full external references are unsupported. Compressed glTF geometry, skins and active morphs require conversion. Animation is static; advanced materials may be approximate. ZIP complete model folders, or use self-contained GLB for single-file sharing. Supported ZIP AES/ZipCrypto, 7z AES and RAR4/5 AES/solid archives can open; multipart, Deflate64, Implode and ARJ are unsupported. Native previews depend on iOS codecs/variants. Privacy No account, ads, analytics or document uploads. Non-HTML previews stay offline. HTML and ZIP websites may run JavaScript and connect over HTTPS/WSS in an isolated environment; offline and Safe Preview modes are available. Terms: https://oneapps.studio/terms Privacy: https://oneapps.studio/privacy

Screenshots

Joey MCP Client4 screens
OneOpen4 screens

Verdict

The call

The clearest difference is price: OneOpen at Free against Joey MCP Client's $4.99. OneOpen also leads on update cadence (every 4 days vs every 3 weeks). Joey MCP Client's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 17.0). On ads 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

OneOpen is free to download; Joey MCP Client costs $4.99 up front. OneOpen sells 2 in-app purchases, starting at $0.99 per year. Joey MCP Client asks for nothing beyond the download.

UpkeepUpdate frequency

Joey MCP Client ships an update every 3 weeks, OneOpen every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard4 real differences ยท 4 level
Joey MCP Client versus OneOpen: the parameters behind the verdict, then further details
ParameterJoey MCP ClientOneOpen
Price$4.99Free โ€” better
Positive reviewsโ€”57.1% of reviews
Update frequencyEvery 3 weeksEvery 4 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
Monetizationโ€”Freemium
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size38 MB76 MB
Age rating+44+
DeveloperBenjamin KaiserFreedom Dimension (shenzhen) Technology Co., Ltd

In-app purchases

None

Joey MCP Client

No in-app purchases

2 purchases

OneOpen

Subscriptions1
  • Advanced Access Annual$0.991 Year
One-time1
  • Advanced Access LifetimeFree

Questions

Is Joey MCP Client free?
Joey MCP Client costs $4.99, with no in-app purchases.
Is OneOpen free?
OneOpen is free to download, with in-app purchases available.
Do Joey MCP Client or OneOpen have ads?
Neither Joey MCP Client nor OneOpen shows ads.
Which is updated more often, Joey MCP Client or OneOpen?
Joey MCP Client ships an update every 3 weeks, and OneOpen every 4 days. Most recently, Joey MCP Client was updated on October 31, 2026 and OneOpen on November 6, 2026.

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