Apertus Alternatives

Apps similar to Apertus include Lumo by Proton, which is open source with a free version. Other options are ChatGPT, DeepSeek, Mistral Vibe and Claude. You're spoiled for choice with AI Chatbots like Apertus: we list more than 100 alternatives for the web, Mac, Windows, Linux and Android.

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Apertus alternatives page was last updated Apr 1, 2026

WearGPT
8 likes
WearGPT is an innovative smartwatch app that allows users to access the advanced language processing capabilities of Open AI's GPT Model directly from their wrist. With WearGPT, you can easily ask questions, get instant answers, make quick calculations, and more - all...
Cost / License
Free
Open Source (Apache-2.0)
Application type
AI Chatbot
Platforms
Android Wear
+2
Good alternative?Is WearGPT a good alternative to Apertus?
ExpressAI
8 likes
Have a truly private AI conversation with powerful models and compare results. Brainstorm, create, and analyze without compromising your data.
Cost / License
Freemium
Proprietary
Application type
AI Chatbot
Origin
British Virgin Islands
Platforms
Online
British Virgin Islands
+1
Good alternative?Is ExpressAI a good alternative to Apertus?
Lumi AI
3 likes
A friendly, human-like AI chatbot powered by Google Gemini.
Cost / License
Free
Open Source (MIT)
Application typeApplication types
AI Chatbot
Large Language Model (LLM)
Platforms
Android
Windows
Linux
AppImage
Debian
Good alternative?Is Lumi AI a good alternative to Apertus?
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ChatSonic
Combining Google's knowledge graph, ChatSonic delivers real-time data, voice interaction, AI-produced visual content, personalized avatars, and API for services. It revisits past dialogs for informed responses and integrates ...

https://writesonic.com
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Merlin AI
9 likes
Freemium Chrome extension offering free GPT-4 access, on-page AI chatbot, document and YouTube summaries, AI writing for social media and Gmail, live web access, translations, and PDF, DOC, or PPT uploads for summarizing and chat, supporting varied professionals.
152 Merlin AI alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
AI Writing
AI Chatbot
Origin
United States
Platforms
Android
iPhone
Android Tablet
iPad
Google Chrome
United States
+1
Good alternative?Is Merlin AI a good alternative to Apertus?
Bavarder
15 likes
Chit-chat with an AI.
Cost / License
Free
Open Source (GPL-3.0)
Application typeApplication types
AI Chatbot
AI Writing
Origin
International
Platforms
Linux
Flathub
Global
Good alternative?Is Bavarder a good alternative to Apertus?
Clawe
3 likes
Multi-agent coordination system powered by OpenClaw.
Cost / License
Free
Open Source (AGPL-3.0)
Platforms
Docker
Mac
Linux
Windows
BSD
Good alternative?Is Clawe a good alternative to Apertus?
RustGPT
10 likes
RustGPT is my latest experiment in cloning the abilities of OpenAI's ChatGPT. It represents the fourth iteration in a series of clones, each built with different tech stacks to evaluate their functionality in creating a ChatGPT-like application.
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
AI Chatbot
AI Writing
Origin
United States
Platforms
Mac
Windows
Linux
BSD
United States
Good alternative?Is RustGPT a good alternative to Apertus?
DankGPT
6 likes
Unlock your documents with instant insights.
Cost / License
Freemium
Proprietary
Application type
AI Chatbot
Platforms
Online
Good alternative?Is DankGPT a good alternative to Apertus?
Chat Stream
Like
In Chat Stream, you can complete writing, run code, view images and organize content in one conversation, and call thousands of scenario-based GPT assistants with one click.
Cost / License
Freemium
Proprietary
Application typeApplication types
AI Writing
AI Image Generator
Origin
United States
Platforms
Online
United States
+3
Good alternative?Is Chat Stream a good alternative to Apertus?
Whismer AI
4 likes
Whismer is a customized AI question-and-answer tool that allows users to train their own AI chatbot with their own resources, making it capable of solving any problem in their specific field.
Cost / License
Freemium
Proprietary
Platforms
Online
+2
Good alternative?Is Whismer AI a good alternative to Apertus?
Teleton Agent
2 likes
Teleton is an AI agent that controls its own Telegram account with native TON blockchain integration. Powered by its own agentic loop and 100+ built-in tools, it manages his own wallet, Gifts, DMs, channels, and group & more like any Telegram user.
Cost / License
Free
Open Source (MIT)
Platforms
Windows
Mac
Linux
Self-Hosted
Good alternative?Is Teleton Agent a good alternative to Apertus?
HackerAI
2 likes
HackerAI is an AI-powered penetration testing assistant designed to help users ask, learn, and brainstorm security insights efficiently.
53 HackerAI alternatives
Cost / License
Freemium
Proprietary
Origin
United States
Platforms
Online
Windows
Mac
Linux
United States
+2
Good alternative?Is HackerAI a good alternative to Apertus?

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Apertus Alternatives

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WearGPT

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ExpressAI

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Lumi AI

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Merlin AI

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Bavarder

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Clawe

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RustGPT

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DankGPT

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Chat Stream

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Whismer AI

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Teleton Agent

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HackerAI

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