No communication with outside servers at all. Rocal is an Android app in which an AI model (such as Gemma 4) runs on its own inside your smartphone, handling everything from fast search of confidential documents (RAG) to advanced AI conversation, completely offline and securely.


Contracts, financial data, unpublished medical records, proprietary research notes. Sending these to a cloud AI service carries the risk of serious company policy violations and data leaks.
You no longer have to give up on AI, and fall behind in productivity, because of security rules.
Imported documents, chat history, OCR data and all inference happen only within an isolated local area of your smartphone.
Not a single byte goes to ad tags, tracking or outside communication. The app is designed never to send information out.
PDF, Markdown and text files are indexed and searched instantly inside your phone. Answers are pulled from documents hundreds of pages long in an instant.
Import the notes and folder structure you built in Obsidian as they are. Use them as local knowledge, fully private, without sending anything out.
Share one model file (.gguf) with the other apps in the series (Tracal/Lingcal). No more storing the same multi-gigabyte file twice.
Depending on your device's memory (6GB/8GB/12GB/16GB), choose the right model, from lightweight models built for speed to high-precision reasoning models.
Analyze NDAs and confidential litigation documents locally, all at once. Key risk points are extracted automatically without sending anything to the cloud.
Safely summarize M&A disclosure documents and pre-earnings information subject to insider rules. Support fast decisions without leaving logs outside.
Turn patient case notes and unpublished papers into a local database and search them fast. Analyze safely in line with personal data protection rules.
| Feature / Plan | Free (Lite) | Paid (Premium) |
|---|---|---|
| Outside communication / ad tracking | Zero (0 bytes) | Zero (0 bytes) |
| Local AI models stored | 1 model (swap freely) | All 24 models stored, switch instantly |
| Document (RAG) limits | 1 folder, up to 5 files (1MB per file) | Multiple folders, more files (with limits) |
| Obsidian Vault import | Not available | Import all Vault folders (stays on your device, nothing sent) |