Castoly

Castoly — let your team personalise and present your decks, without touching the master.

Castoly lets an organisation share its branded slide decks — Google Slides or PowerPoint — so a distributed team can personalise and present them, without ever getting access to the master file. Your team personalises only the fields you allow and presents live; your master is never touched, and every version is a separate copy.

How it works

1. Bring your deck. Import from Google Workspace or upload a PowerPoint — it stays in your own Drive.
2. Mark what changes. Put {{tokens}} where content should be editable and choose, per field, who can edit it.
3. Delegate & present. Your team signs in, personalises their allowed fields, and presents — you never rebuild a deck.

Why teams switch

• Decks stay in your Google Drive. Presenters never get file access.
• Lock the parts that matter (brand, figures, layout); delegate only the fields you choose.
• Present a live, view-only mirror to any device — no editing controls exposed.
• Built for language schools, training companies, franchises, agencies, and sales teams.

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