18.7
Vellum describes itself as a personal AI assistant that can read files, manage calendars, send email, run code, and control a computer.
Free planOpen sourceAndroidiOSWeb
Best AI Agent Platforms in 2026
Vellum leads this chart of 73 (8.7/10, free plan). SmythOS is next (8.5/10, free plan), and Dify is the next highest-placed with a free plan (8.4/10). AI agent platforms help you build and run software agents; compare deployment options and the features you need, such as visual building, knowledge grounding, or human handoff. Check Android support directly if you plan to build or manage agents from a Xiaomi, Redmi, or POCO device. The listed platform options include web, API, self-hosted, and desktop deployments, but no Android platform figure is provided.
28.5
An Android app and visual canvas help you build, observe, and deploy AI agents and workflows.
Free planOpen sourceAndroidiOSWeb
38.4
No Android app is listed; Dify helps build AI apps with model calls, knowledge retrieval, tools, and branching.
Free planOpen sourceWebAPIExtension
- 4
Workato Agent Studio
No Android app is listed; Workato Agent Studio is available on the web, iOS, desktop, and Linux.
Free planiOSWebAPILinux8.3Free plan - 5
Microsoft Copilot
Microsoft Copilot is an AI assistant available on the web, Windows, macOS, iOS, and Android.
Free planAndroidiOSWebWindows8.2From $99.99 a year - 6
Voiceflow
An Android app for Voiceflow, which also offers web tools for building voice and chat agents.
Free planAndroidiOSWebAPI8.2From $972 a year - 7
LangSmith
No Android app is listed; LangSmith builds, deploys, monitors, and evaluates AI agents.
Free planWebAPILinuxmacOS8.0$39 usage-based - 8
Retool
An Android app is listed for Retool, alongside web, iOS, and self-hosted options.
Free planAndroidiOSWebAPI7.8From $10 a month - 9
Camunda
No Android app is listed; Camunda coordinates business processes across teams, AI agents, systems, and devices.
Free planWebAPILinuxmacOS7.6Free plan - 10
Google Agent Development Kit
Google Agent Development Kit (ADK) is an open-source framework for building, debugging, evaluating, and deploying AI agents.
Free planOpen sourceWebAPILinuxmacOS7.5Free plan - 11
Falcon Builder
Falcon Builder is a no-code platform for creating and deploying AI agents as hosted chats, forms, website chat widgets, WhatsApp experiences, or SMS services.
Free planWebAPISelf-hosted7.4From $29 a month - 12
QuickBlox Chat API
An Android app and APIs provide chat features including group messaging, presence, file sharing, and moderation.
Free planAndroidiOSWebAPI7.4From $107 a month - 13
7.4From $19 a month - 14
Botpress
Create AI bots with a flow builder, generated setup and support for several channels.
Free planWebAPI7.3From $150 a month - 15
Workato Agentic
No Android app is listed; Workato Agentic is available on the web and provides a visual flow builder.
Free planWebAPI7.3Free plan - 16
Flowise
Flowise is an open-source platform for building generative AI agents and workflows based on large language models.
Free planWebAPILinuxmacOS7.2From $35 a month - 17
Wordware
No Android app is listed; Sauna is a team AI teammate that learns work habits and uses email and documents as context.
Free planiOSWeb7.2From $29 a month - 18
Houston
No Android app is listed; Houston gives teams a shared workspace for agents that work across connected tools.
Free planWebLinuxmacOSWindows7.1From $12 a month - 19
Lindy
Use Lindy’s web service or extension to automate tasks across multiple steps.
Free planWebExtension7.1From $29.99 a month - 20
LlamaIndex
No Android app is listed; LlamaIndex automates document processing and builds document-based AI workflows.
Free planWebAPILinuxSelf-hosted7.1From $50 a month - 21
Dust
Share agents across teams, with connectors for Slack, Notion, Drive, GitHub and other tools.
Free planWebAPIExtension6.9From €288 a year - 22
Meya
AndroidiOSWebAPI6.9From $99 a month - 23
Kopern
Set up agent prompts and tools, then grade outputs against safety, schema and other criteria.
Free planWebAPI6.8From $79 a month - 24
LangChain
LangChain is a free, open-source framework for building agents that connect models with tools.
Free planAPISelf-hosted6.8$39 usage-based - 25
MindStudio
Build AI agents with access to 200+ models and deploy them as apps, extensions or scheduled tasks.
Free planWebAPIExtensionSelf-hosted6.8From $20 a month
Choosing well
Where do I need to deploy my agents?
Start with where you need to build, connect, or run an agent. Platforms in this category list web, API, self-hosted, macOS, Linux, and Windows options.
If you need access from Android, check the platform's own app and device support; the platform figures here do not specify Android availability.
Which agent-building features should I compare?
Compare visual agent building, multi-agent support, knowledge grounding, voice agents, and human handoff against the work you need the platform to do.
For example, SmythOS, Vellum, and Dify list free plans; compare their published features and deployment models before choosing.
Can I start with a free plan?
Check whether the platform offers a free plan, a free trial, or a paid starting price. These are different ways to try or pay for a service.
Published examples include a free plan with paid service from $30 per month for Vellum, and a free plan with paid service from $59 per month for Dify. Camunda lists a free plan and a 30-day trial.
Can I inspect or host the platform's code?
If you need to read or change the code, check the platform's licence and whether it supports self-hosting. Open-source status and self-hosted deployment are separate considerations.
A self-hosted option is listed for some platforms, and the category is compared on deployment model and open-source status.
Questions people ask
What is an AI agent platform?
It is software for building or running AI agents. Compare where it can be deployed and whether it supports features such as visual building, knowledge grounding, voice, or human handoff.
Can I use an AI agent platform on Android?
The platform information here does not provide an Android availability figure. Check the platform's own app and support details for your Xiaomi, Redmi, or POCO device.
Which AI agent platforms have a free plan?
Examples listed with free plans include SmythOS, Vellum, Dify, Camunda, LangSmith, Falcon Builder, Flowise, and Google Agent Development Kit. Terms and paid options vary.
What should I compare when choosing an AI agent platform?
Compare deployment model, visual agent building, multi-agent support, knowledge grounding, voice agent support, and human handoff. Also check pricing and platform availability.
Do AI agent platforms support self-hosting?
Self-hosted deployment is one of the platform options listed in this category. Check an individual platform's details to confirm whether it supports the setup you need.