1. Home
  2. Topics
  3. That Open Platform

Best That Open Platform Apps & Games

45+ iOS apps & games curated and reviewed

4.0 avg rating
20 free apps & games
Updated May 2026

If you already know Claude by Anthropic, this is the deeper bench. 45+ that open platform apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.

Compare top That Open Platform Apps & Games (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Claude by AnthropicClaude by AnthropicFree4.7★ (203K)NoYesJul 2026
2That Open PeopleThat Open PeopleFree5.0★ (1)NoNoMay 2026
3Open SourceOpen SourceFree3.7★ (3)NoNoMay 2026
4Playdead's INSIDEPlaydead's INSIDEFree4.4★ (30K)NoYesJul 2026
5Tradly Platform - PrototypeTradly Platform - PrototypeFree5.0★ (1)NoNoMay 2026
6ChatGPTChatGPTFree4.8★ (8.7M)YesYesJul 2026
7OpenClient for OpenCodeOpenClient for OpenCodeFree4.3★ (3)NoYesJul 2026
8Happier: Claude Codex OpenCodeHappier: Claude Codex OpenCodeFree4.3★ (8)NoNoJul 2026

Top Picks for That Open Platform

Claude by Anthropic#1

Claude by Anthropic by Anthropic PBC

당신과 함께 생각하는 AI
Editor's Choice
📊 Productivity
4.7😊(203K ratings)
FreeIn-App Purchases
#2in Productivity
Claude by Anthropic screenshot 1
Claude by Anthropic screenshot 2
Claude by Anthropic screenshot 3
Claude by Anthropic screenshot 4
Claude by Anthropic screenshot 5
Claude by Anthropic screenshot 6

This AI assistant helps you write, research, code, and solve complex problems. It can analyze documents, code, and images, and even respond to voice commands. Expand your capabilities and tackle new projects with this intelligent thinking partner.

What We Love

  • 🚀 Powerful and versatile AI assistant
  • 👍 Intuitive and easy to use interface
  • 💡 Innovative features like 'Projects'
  • 🤖 Intelligent and thoughtful responses

Room to Improve

  • 🔒 Concerns about privacy and data usage
  • 🚫 Limitations on free usage and throttling
  • 🐛 Occasional bugs and crashes
Open Source#3

Open Source by Emma Technologies, L.L.C.

Worth Considering
🔧 Utilities
3.7(3 ratings)
Free
Open Source screenshot 1

This open-source application serves as a platform for developers to showcase and test innovative technologies. It allows for self-promotion of new features and provides a space to contribute and view demo projects.

More That Open Platform apps to explore

4
Playdead's INSIDE
Playdead's INSIDE
Playdead's INSIDE
From the Creators of LIMBO
Free

Embark on a dark, narrative-driven adventure in this critically acclaimed indie platformer. Solve challenging puzzles and experience intense action within a moody, unsettling atmosphere. This award-winning game is known for its stunning art style and ambient soundtrack.

Narrative-driven adventureChallenging puzzlesIntense action
🎮 Games
(30K)
paid
5
Tradly Platform - Prototype
Tradly Platform - Prototype
Tradly Platform - Prototype
Prototype your concept
Free

Build and launch your own marketplace or platform business quickly without starting from scratch. This app provides a flexible and expandable infrastructure for testing new ideas or internal use. It allows for rapid prototyping and beta testing before deploying a white-label solution.

Launch marketplace businessesBuild custom platformsModular and flexible infrastructure
🛠️ Developer Tools
(1)
free
6
ChatGPT
ChatGPT
ChatGPT
The official app by OpenAI
Free

This app provides access to advanced AI capabilities, including text generation, image creation from descriptions, and voice conversations. It offers personalized advice, creative inspiration, and instant answers for various tasks, syncing history across devices.

Image generation from textAdvanced voice conversationsPhoto upload and transcription
📊 Productivity
(8.7M)
free with in-app purchases
7
OpenClient for OpenCode
OpenClient for OpenCode
OpenClient for OpenCode
Client for OpenCode
Free

This app provides a native mobile interface for interacting with a self-hosted OpenCode server. Developers can manage projects, resume coding sessions, review agent activity, and respond to prompts directly from their iPhone or iPad.

Connect to self-hosted OpenCode serversBrowse projects and session historyContinue chat conversations
🛠️ Developer Tools
(3)
free
8
Happier: Claude Codex OpenCode
Happier: Claude Codex OpenCode
Happier: Claude Codex OpenCode
Code anywhere. Faster. Happier
Free

This app acts as a secure bridge for AI coding agents, allowing you to run and continue sessions from your computer on your phone. It supports collaboration, reliable session resuming, and full history access with end-to-end encryption.

Collaborative coding sessionsSupport for multiple AI providersPersistent and resumable sessions
🛠️ Developer Tools
(8)
free
9
The Enterprise Platform
The Enterprise Platform
The Enterprise Platform
Explainer Showcase Application
Free

This application serves as a showcase for enterprise solutions, demonstrating capabilities in data gathering, reporting, and contract assembly. It aims to boost productivity and reduce operational costs by managing various business processes and engagement needs across all devices.

Data gathering and reportingReal-time contract assemblyCross-device compatibility
📊 Productivity
(0)
free
10
Open Doors AI
Open Doors AI
Open Doors AI
Unlock Your Business Potential
Free

This AI-powered platform streamlines business operations, enhances customer relationships, and drives growth. It offers tools for CRM, communication, scheduling, review management, payments, and AI-driven customer support.

AI-powered CRMCentralized communicationIntegrated booking system
📊 Productivity
(0)
free
11
Frinzo Platform
Frinzo Platform
Frinzo Platform
by Tecomsa Telecommunications LTD
Free
💼 Business
(0)
12
OpenMono: AI Coding Agent
OpenMono: AI Coding Agent
OpenMono: AI Coding Agent
Own Your AI Dev Stack
Free

Control your local AI coding agent from your mobile device. Run complex inference on your home GPU and manage agentic workflows securely. Offers unlimited, private prompts and deep integration for .NET developers.

Dual-Box ConnectivityUnlimited, Private PromptsAgentic Code Execution
🛠️ Developer Tools
(0)
free
13
Nanoswarm: OpenClaw App
Nanoswarm: OpenClaw App
Nanoswarm: OpenClaw App
AI Assistant Bots for Telegram
Free

Create and manage AI-powered bots for Telegram without coding or server setup. Define bot personalities, choose AI models, and utilize built-in tools for automation. Connect via a Telegram bot or your own for 24/7 availability.

No-code AI bot deploymentCustomizable bot personalitiesMultiple AI model support
🔧 Utilities
(4)
free with in-app purchases
14
Know Platform
Know Platform
Know Platform
by Brandon Padula
Free

This business application allows users to access device-specific features and receive push notifications from their organization's environment. It connects users to the Know Platform for enhanced communication and functionality.

Device-specific functionality accessPush notifications from organizationConnects to Know Platform environment
💼 Business
(2)
free
15
Prime Access App
Prime Access App
Prime Access App
Collaboration Made Simple
Free
🌟 Lifestyle
(0)
16
OpenProject
OpenProject
OpenProject
OpenProject app
Free

Manage your projects on the go with this open-source tool. Track tasks, collaborate with your team, and update project statuses in real time from your iOS device. Stay organized and productive wherever your work takes you.

Create, view, and edit work packagesUpdate task status, priority, and assigneesInstant commenting and collaboration
💼 Business
(2)
free
17
Holdr+
Holdr+
Holdr+
by Indicio Inc
Free

Securely manage and share personal, high-value information using verifiable digital credentials. This app enables encrypted peer-to-peer communication within a trusted digital ecosystem, built on open-source technology for enhanced privacy and security.

Create and manage verifiable digital credentialsSecure peer-to-peer communicationTrusted Digital Ecosystem
📊 Productivity
(3)
free
18
Repostify: Auto Repost Videos
Repostify: Auto Repost Videos
Repostify: Auto Repost Videos
Auto repost across socials
Free

Automate video sharing across social media platforms. Upload once and this tool handles reposting to connected accounts, preserving quality and saving creators time. It supports a wide range of popular social networks and cloud storage.

Automatic video repostingDirect upload with custom captionsQuality-preserving reposts
📊 Productivity
(1)
free with in-app purchases
19
Snapchat
Snapchat
Snapchat
Share the moment!
Free

Instantly share photos and videos with friends and family. Express yourself with creative tools, connect through live messaging and video calls, and discover content from the community. Save your favorite moments and explore shared memories.

Camera with Lenses and FiltersLive Messaging and Video ChatFriend and Group Stories
📷 Photo & Video
(5.9M)
free with in-app purchases
20
TZAR JEWELRY
TZAR JEWELRY
TZAR JEWELRY
The Golden Suite
Free
💼 Business
(0)

FAQ about That Open Platform

What are the best that open platform apps & games for iPhone?
Claude by Anthropic tops our that open platform apps & games ranking as of May 2026, with a 4.7-star average from 203K App Store ratings, and it's free to download.
Yes — 20 of the top that open platform apps & games we rank are free to download, including Claude by Anthropic and That Open People.
Claude by Anthropic has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 45+ that open platform apps & games on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
Claude is an AI assistant designed to help users with a variety of tasks including writing, research, coding, and problem-solving. It can refine text, debug code, analyze data, and even interpret visual content like images and PDFs.
Key features include AI writing assistance for polishing content, AI coding support for development tasks, research capabilities with web search and data insights, and visual analysis of uploaded files. It also offers voice dictation for hands-free interaction and can integrate with Google Drive, Gmail, and Calendar.