Freedom251 › Digital Signage Software
Castmill
What Castmill is
Castmill is a digital signage platform for creating and monetizing networks of screens. Its HTML5 player displays images, videos, animations, audio, widgets, and layouts. The Displays view shows online status, schedules, locations, local time, and live content previews. Drag-and-drop playlists can be placed on calendars that update displays in real time. Uploaded images and videos are automatically converted for the players. Teams can share media, playlists, displays, and calendars with groups and assign rights to each item. Custom templates can read service APIs or scrape webpages, while custom widgets can retrieve integrated data; the maker cites integrations with many real-estate databases. Supported players include Intel NUC, Raspberry Pi, LG WebOS 3.0 or 4.0 displays, Android, Linux, and browser HTML5. Plans include a free first-player subscription, Starter at $29 a month for four screens, Growth at $49 a month for ten, and Enterprise at $99 a month for 25.
Who it suits
It suits retailers, real-estate operators, menu-board users, and organizations running information displays. Teams needing multiple player environments or API-connected content can use its listed platform options.
What it does well
- Supports images, video, audio, and widgets
- Real-time calendar updates for displays
- Group sharing with item-level rights
- API access and custom widgets
- Free first-player subscription
What to know first
- Starter is limited to four screens
- Starter excludes templates, custom layouts, widgets, 4K, and analytics
- Custom hardware porting excludes testing time
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Starter | $29 /mo · Up to 4 screens · no templates, custom layouts, custom widgets, 4K, or analytics · email and chat support | $29 a month |
| Growth | $49 /mo · Up to 10 screens · no custom layouts, custom widgets, 4K, or analytics · email, chat, and ticket support | $49 a month |
| Enterprise | $99 /mo · Up to 25 screens · email, chat, ticket, and phone support during GMT+1 office hours | $99 a month |
| First player subscription | First player's subscription · all features enabled | Free |
As castmill.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
Castmill provides screen management, scheduling, sharing, and connected content options for digital signage networks. Compare screen allowances and feature exclusions across its paid tiers.
Facts from Castmill's own pages
- API access
- Yes · castmill.com, 21 Sept 2026
- Content types
- images,videos,animations,audio,widgets · castmill.com, 21 Sept 2026
- Custom hardware
- Castmill offers player porting for unsupported hardware, with an estimated couple of days to a month depending on the device, excluding testing time. · castmill.com, 11 Oct 2026
- Free plan
- Yes · castmill.com, 21 Sept 2026
- Integrations
- Custom templates can read data from service APIs or scrape webpages, and custom widgets can fetch data through service integrations. · castmill.com, 11 Oct 2026
- Media conversion
- Castmill says it automatically converts uploaded images and videos into an efficient representation for its players. · castmill.com, 11 Oct 2026
- Player technology
- Its player software uses HTML5 to display videos, images, animations, and layouts. · castmill.com, 11 Oct 2026
- Playlists and calendars
- Users can build drag-and-drop playlists and schedule them through calendars that update displays in real time. · castmill.com, 11 Oct 2026
- Product
- Castmill is a digital signage platform for building and monetizing a digital signage network. · castmill.com, 11 Oct 2026
- Real estate
- Castmill says it has integrations for many real estate databases and can integrate with new systems in any country. · castmill.com, 11 Oct 2026
- Screen limit
- 4 · castmill.com, 21 Sept 2026
- Screen management
- The Displays view shows online status, schedules, location, local time, and a real-time content preview. · castmill.com, 11 Oct 2026
- Security
- A maker article describes a security-first, zero-trust approach with authentication and permissions checks, and states a goal of SOC 2 certification within one year of first production release. · castmill.com, 11 Oct 2026
- Sharing
- Users can share media, playlists, displays, and calendars with groups and assign different rights to each item. · castmill.com, 11 Oct 2026
- Paid from
- 29 · castmill.com, 21 Sept 2026
- Support
- Castmill lists chat, email, in-app messaging, and appointment-based Zoom calls as support channels. · castmill.com, 11 Oct 2026
- Supported players
- Listed player options include Intel NUC, Raspberry Pi, LG Digital Signage Edition displays running WebOS 3.0 or 4.0, Android devices, Linux devices, and a browser HTML5 player. · castmill.com, 11 Oct 2026
- Use cases
- The maker presents Castmill for retail screens, real estate displays, menu boards, and information displays. · castmill.com, 11 Oct 2026
Where Castmill stands on Freedom251
- Digital Signage Software#33 of 207