smasi is a personal wiki app for keeping knowledge, instructions and work steps on your own device. Instead of Markdown syntax it uses section templates; you can insert images, apply simple text formatting and switch to a read-only view to avoid accidental edits. The app is aimed at tradespeople, freelancers and private users, for example for manuals, checklists and project documentation. Versions exist for Android, iPhone and iPad, Mac, Windows and Linux. No registration or login is required.
smasi is offered by 2S-Software AG in Switzerland; no parent company outside Europe was found. According to the website and privacy policy, data stays on your own device and does not leave your system, and the company itself holds no customer data. Syncing between devices is optional and runs through iCloud or a self-managed NAS. The website does not say whether the source code is open.