Millions of users are abandoning cloud-locked software this year to reclaim their data privacy. As companies rely more on subscription-only models, the push for local-first alternatives is accelerating rapidly. Finding a desktop app to replace Notion is easy enough. Finding an open-source mobile app that doesn’t feel like a clunky afterthought is another story entirely.
The team at XDA Developers just put the most popular open-source note-taking apps through a rigorous mobile gauntlet. They tested heavyweights like Logseq, Joplin, and Simplenote. But after weeks of swiping through menus and organizing databases on smaller screens, they crowned a single winner. AFFiNE is the only mobile app that genuinely competes with Notion.
AFFiNE stands out because it operates as a hybrid workspace. It blends standard text documents with an interactive digital whiteboard. This means you get standard Notion-style blocks alongside an infinite Miro-like canvas. Other platforms like AppFlowy try to build a direct UI clone, making both applications the leading open-source Notion alternatives for users who want dual document and canvas modes. AFFiNE’s mobile interface makes these two modes incredibly fluid to use on the go.
The mobile layout prioritizes speed above all else. You get clean card previews with timestamps and color-coded inline tagging to keep your files organized. It even features an auto-creating calendar journal that perfectly mirrors the desktop experience. You can switch between devices and pick up exactly where you left off.
But there is a catch hiding in the fine print. While AFFiNE markets itself as an open-source platform, the structure is technically split. The core editor operates under an open-source MIT license, but its resource-heavy local-first architecture means the server-side synchronization feature relies on a separate, non-FOSS enterprise license. If you want automatic cloud sync natively, you have to play by their enterprise rules or figure out a self-hosting workaround.
How Open-Core Licensing Changes the Software Market
The tech industry is rapidly adopting this “open-core” monetization strategy. Instead of selling a software box, companies give away the local editor for free. They build enormous goodwill with privacy advocates. Then, they quietly lock the essential quality-of-life features behind proprietary enterprise paywalls.
You get full data sovereignty on your local machine. But the moment you want the convenience of cloud backups across multiple devices, you are forced back into a subscription ecosystem. This hybrid approach keeps these development teams funded, but it forces users to decide exactly how much their data privacy is worth when they finally delete apps like Notion.