SigmaOS Alternatives

If you're looking for something different than SigmaOS, Opera Browser could be a good alternative. It's got Tab Islands for organization, a free VPN for private browsing, an Ad Blocker, and Integrated Messengers for communication. It also comes with Aria Browser AI, which provides information and writes text as you type, and Opera Flow for file sharing. The browser is designed to keep you productive and on track, and it's available for desktop and mobile devices so you can pick up where you left off.

Another contender is Sider, an AI productivity assistant that works with web browsers and mobile devices to perform a variety of tasks like chat, writing, reading, translation and image editing. It's designed to free up your time by automating routine tasks, for example with AI article generation, grammar checking and group AI chat. Sider claims it can free up about 8.5 hours a week for users, making it a good option if you want to get more out of your productivity.

If you're looking for a more focused browser extension, you might want to check out Buffup. Buffup is a personal AI assistant that's designed to help you get more out of the web. It's got chat, reading assistant, writing assistant and multimodal analysis abilities that let you chat, write, translate, analyze and summarize text. It works with Chrome and Edge browsers and has flexible pricing options depending on how much you need.

Last is Bearly, an AI productivity tool that works on your PC. It's got abilities like document analysis, transcription and web querying. It supports multiple AI models and has a Prompt Marketplace with templates for reading and writing. Bearly promises to protect your data with no query logging and user-owned encryption keys, so if you're worried about prying eyes, it's a good option for boosting your productivity.