Penna.app
Overview
Penna uses a custom GPT‑4 model to auto‑generate complete business proposals in seconds, supports 29+ languages, and offers real‑time collaboration. End‑to‑end encryption, legally recognized e‑signatures, CRM/payment integrations, and analytics streamline and secure the sales process.
How to use it
- Register at penna.app and enter the workspace
- Enter product selling points, audience and channel characteristics
- Generate assets and filter them down to the usable versions
- Export and launch, then review performance and iterate again
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