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Vernissage vs Flashes: catalog facts
Vernissage	Flashes
Free Free to use and ad-free; source code under Apache 2.0.	Free No paid plan is mentioned on the homepage.
Web, Self-hosted	iOS, Web
Exif and custom metadata, including for film photography HDR photo display	Up to 20 photos or one-minute videos per post Posts are fully compatible with Bluesky
Smaller community than general-purpose fediverse platforms AI suggestions are optional but may not suit every user	Native app is iPhone only Requires a Bluesky or Eurosky account
Self-hosted, Hosted service	Downloadable app, Web application
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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