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iA Writer vs SoloMD: catalog facts
iA Writer	SoloMD
Paid A paid purchase or subscription is required, depending on platform.	Free Free under the MIT licence with no paid tier, subscription or ads.
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS
Syntax control highlights adjectives, conjunctions and filler words Plain Markdown files in your own folders, with no proprietary library	Live preview editing with PDF and Word export Native apps on five platforms, including iOS and Android
Paid on every platform, with separate purchases in places Deliberately few features; it is not an organiser or notebook	AI features need your own API key from a provider Young project with a fast-changing feature set
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.