--- title: "SumizAI vs SOWA Privacy" url: "https://sumizai.com/alternative-to/sumizai-alternative-to-sowa-privacy.html" date: "2026-08-14T00:00:00+02:00" modified: "2026-08-14T00:00:00+02:00" description: "Looking for a SOWA Privacy alternative? SumizAI and SOWA Privacy side by side: price, licence, platforms and what each one actually does." tags: ["ai notes", "sumizai", "sowa-privacy", "alternative to SOWA Privacy"] --- # SumizAI vs SOWA Privacy Looking for a SOWA Privacy alternative? SumizAI and SOWA Privacy side by side: price, licence, platforms and what each one actually does. ## What SOWA Privacy is SOWA Privacy is a free, open-source Chrome extension that anonymizes personal data in real time before it reaches any AI platform. It works fully locally on the user's device — no cloud, nothing sent to external servers — filtering out names, addresses, phone numbers, and other sensitive data from text typed into AI assistant chats before that text ever leaves the browser. Key features: Real-time anonymization works in the background while typing, detecting and masking personal data before a message is sent to the AI model. Fully local processing — no cloud — means the actual detection and masking happens on the user's device, with nothing sent to the extension maker's servers. Open source code lets anyone verify exactly how the anonymization works, instead of relying solely on the maker's claims. Browser integration as a Chrome extension means protection runs automatically on every page with an AI chat, with no need to manually enable it each time. Who it's for: SOWA Privacy appeals to people who regularly use AI chatbots at work and want to ask questions containing fragments of real data — client case descriptions, for instance — without risking sensitive information reaching the model in identifiable form. Companies in regulated industries where personal data protection is a legal requirement, and privacy-conscious individual users, find a practical tool here for working with AI more safely. Use cases: In practice, SOWA Privacy works well when an HR staffer wants to ask a chatbot for help wording a response to a difficult employee situation, without wanting to reveal that specific person's data. A consultant describing a client's situation to get AI advice can work on an anonymized version of the text, preserving confidentiality while still getting the full power of the model. A lawyer consulting a chatbot on a general legal issue avoids accidentally exposing personal data belonging to parties in a dispute. Pricing and business model: SOWA Privacy runs on a freemium model — the basic version of the extension is free, with an upgrade path to a paid plan for companies needing extra management or compliance features. Open source code also means some core functionality stays available regardless of the maker's business model. Limitations and what to watch for: The extension works in Chrome only, so users of other browsers have no access to it. Automatic anonymization, while effective for typical patterns of personal data, may not catch every case of sensitive information in an unusual format, so it doesn't replace human vigilance when working with truly confidential data. AI notes and data anonymization: SOWA Privacy isn't a notes app, so it doesn't save the conversations themselves or create ai notes — its job is solely to protect data sent to AI, not to archive the answers. A user wanting to keep a ai notes entry from an anonymized conversation still has to manually copy the response and paste it into a separate notebook, just like with any other chatbot conversation — SOWA Privacy works on the input side, not the output side of that interaction. Zero cloud as the foundation of trust: The "100% on-premise, zero cloud" claim is the heart of SOWA Privacy's value proposition — unlike many privacy tools that themselves require trusting an external server to process data for anonymization, SOWA Privacy sends nothing outside the user's browser during the masking process itself. That eliminates the paradox of a privacy protection tool becoming yet another place sensitive data has to be trusted to. Visibility into detected data: Extensions of this type typically show users which text fragments were detected as personal data and masked before a message is sent — letting them quickly verify that anonymization actually covered everything it should before hitting send. That transparency in the process matters as much as the masking feature itself, since it builds trust in what's happening behind the scenes. Regulatory compliance as an added motive: For companies in regulated industries — healthcare, finance, law — anonymizing data before sending it to an outside AI provider is often not just good practice but an actual compliance requirement under data protection regulations. SOWA Privacy lets such organizations use AI tools without breaking their own privacy policies or risking regulatory penalties for unauthorized transfer of personal data outside the organization, including data that ends up accidentally in ai notes created from such conversations. A daily habit instead of a one-time decision: Because the extension runs automatically in the background on every page with an AI chat, privacy protection becomes part of a daily habit rather than something to remember separately each time. That's a meaningful difference from manually anonymizing text before pasting it into a chatbot — it's easy to forget that step in a rush, and automation removes that risk. Three words sum up that philosophy: local, transparent, automatic. Getting that combination right is what separates a genuinely safer daily AI habit from one that only looks safer on the surface. What's worth checking before choosing: Before relying on SOWA Privacy as the only layer of protection when working with truly sensitive data, it's worth checking exactly which types of data the extension detects and masks, and testing it on sample, fake data to see how it actually handles the specific kind of information you work with. Bottom line: SOWA Privacy is a practical tool for protecting privacy in everyday work with AI chatbots, running locally and without a cloud. Anyone who wants valuable, anonymized answers to automatically become ai notes saved as files, rather than staying trapped in chat history, should consider a tool built around that workflow. Comparison with SumizAI: SOWA Privacy and SumizAI protect different stages of working with AI. SOWA Privacy anonymizes data sent TO the model before it ever sees it. SumizAI handles what happens AFTER the conversation — turning valuable answers into ai notes saved as Markdown files in a vault the user owns. A privacy-conscious user can use both together: SOWA Privacy to protect input data, and SumizAI to build an organized archive of ai notes from conversations that have already been safely filtered. **Key facts** - Price: Freemium - License: Proprietary ## What SumizAI is A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk. A vault is a directory holding `base.md`, a generated table of contents up to six levels deep, and a `notes/` folder with one `.md` file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist. The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used. ## Where they differ - Both mention AI. The difference is whose key it runs on: SumizAI never resells inference — you connect one of seven providers (Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server) with your own API key and pay that provider directly. Check what SOWA Privacy does with the model bill before comparing prices. - SOWA Privacy is freemium: there is a free tier and a paid one, and the line between them is the thing to read before committing. SumizAI has one plan at a dollar a month, so there is no feature held back for a higher tier — and an unpaid account still opens and exports every vault it already has. - AlternativeTo's description of SOWA Privacy does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard `.md` files to a folder you picked, and an unpaid account can still export all of them. - SOWA Privacy is extensible through plugins. SumizAI is not, and that is a genuine trade: you cannot bend it into something else, but there is also no plugin to keep working after the next release. What it does instead is fixed and small — a chat, a filing rule and a folder of Markdown. - SOWA Privacy runs in the browser. SumizAI is a desktop and mobile application, and on the desktop the vault is a folder on your own disk rather than a document in someone's cloud. Full side-by-side comparison table and pricing: [https://sumizai.com/alternative-to/sumizai-alternative-to-sowa-privacy.html](https://sumizai.com/alternative-to/sumizai-alternative-to-sowa-privacy.html)