# Subra AI: Private Spaces — Offline AI Stays On Device

> Offline AI Stays On Device (iPhone/iPad app by Subrata Kumar Das.)

- Source: https://appshunter.io/ios/app/subra-ai-private-spaces/id6791144948 (this page in markdown: same URL + `.md`)
- Developer: [Subrata Kumar Das](https://appshunter.io/developer/1802433517)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.5 · 132 MB
- Languages: American English
- Released: 2026-07-19
- Data updated: 2026-10-17

## What is Subra AI?

Your private AI workspace—built to work on your device.

Subra AI brings chat, voice, images, documents, personal knowledge, and focused workspaces together in one privacy-first app. Download the on-device AI model once, then use core AI features without sending private conversations and Vault content to a cloud AI provider.

CHAT, SPEAK, AND LISTEN
• Chat with an on-device AI assistant.
• Ask questions using text or images.
• Record voice messages and transcribe them on device.
• Listen to AI responses with an installed voice.
• Choose your response language and writing style.
• Keep separate conversations with local chat history.

FOCUSED SPACES
Organize different parts of your life without mixing their information. Create Spaces for study, trips, interview preparation, projects, research, language practice, creative work, events, career planning, and private health-record organization. Each Space has its own chats, instructions, context, and Vault scope. An included JavaScript Essentials for React Native learning Space is also available.

PRIVATE DOCUMENT VAULT
Add and organize PDFs, text or Markdown files, images, and audio recordings. Subra AI can extract and index supported text locally, transcribe audio on device, search relevant passages, answer questions using selected sources, and cite source files, PDF pages, or audio timestamps when available. Rename files and add your own context notes. Space files remain isolated from unrelated Spaces. When a Vault does not contain enough evidence, Subra AI tells you instead of presenting general knowledge as source-grounded.

PRIVATE HEALTH ORGANIZER
Capture supported health readings, review and correct detected values and units, and confirm before saving. Search and filter records by date, type, or note, then ask questions about records in the active Health Space. Subra AI is a personal record organizer—not a doctor, diagnostic service, or medication advisor. Consult a qualified healthcare professional for medical decisions.

MORE TOOLS
• AI Memory that you can view, edit, or reset.
• Chat import, export, and sharing.
• Local model download and storage controls.
• Light, dark, and system appearance.
• Image background removal.
• Optional compatible external AI provider.
• Privacy-aware support and diagnostic reports.

PRIVACY BY DESIGN
Local chats, personal Vault files, derived text, audio transcripts, and health records stay on your device unless you explicitly export or share them. Internet access may be required for model downloads, App Store purchases, support, published ready-made content, updates, and an external provider you configure.

SUBRA PLUS
The free version includes core features and one personal custom Space in each supported category. Subra Plus is available as monthly or annual auto-renewable subscriptions and includes:
• Unlimited personal custom Spaces in every category.
• Anonymous Chat Support.
• Priority WhatsApp support.

Payment is charged to your Apple Account when the purchase is confirmed. The subscription renews automatically unless cancelled before the end of the current billing period. Manage or cancel it in your Apple Account subscription settings. Cancellation prevents future renewal, while access normally continues through the paid period. Restore eligible purchases inside the app; no separate Subra AI account is required. Prices vary by country or region. Refunds follow Apple policies and applicable law.

Privacy Policy: https://subraatakumar.com/subra-ai/privacy-policy/
Terms of Use: https://subraatakumar.com/subra-ai/terms/

## Is Subra AI safe?

Not enough ratings yet to assess Subra AI.

## Is Subra AI legit?

Subra AI: Private Spaces appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Subra AI is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.35 — 2026-10-08

- subscriptions added
- Minor bug fixes on image capture

### 1.26 — 2026-10-07

• Create and manage personal Spaces more easily.
• Added Subra Plus with Monthly and Annual subscription options.
• Plus unlocks unlimited custom Spaces, Anonymous Chat Support, and Priority WhatsApp support.
• Added in-app purchase restoration.
• Added anonymous support chat and feature suggestions.
• Added privacy-safe problem reports that exclude chats, files, photos, audio, and health records.
• Improved Help & Support and subscription guidance.
• Improved navigation and Space creation flows.
• Minor stability and usability improvements.

### 1.15 — 2026-09-22

- Text question answers are now faster than ever
- Background color added to the image background. Now the user can choose their selected background color.

### 1.12 — 2026-09-12

- Image background removal and replacement through AI

### 1.9 — 2026-09-09

- Fixed an issue with voice and audio responses.
- Subra AI now remembers more from your previous conversations.
- Subra AI may now answer questions in your language

## Apps similar to Subra AI

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| --- | --- | --- | --- |
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| [Forge AI Agent](https://appshunter.io/ios/app/forge-ai-agent/id6800318786) | — | Free | Productivity |
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| [Molux: Offline AI Chatbot](https://appshunter.io/ios/app/molux-offline-ai-chatbot/id6768008589) | — | Free | Productivity |
| [Stella - Your AI](https://appshunter.io/ios/app/stella-your-ai/id6761148311) | 3.6 (5) | Free | Productivity |

## More apps by Subrata Kumar Das

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- [ReactNative Mastery By SubraAI](https://appshunter.io/ios/app/reactnative-mastery-by-subraai/id6770295508)

All apps by Subrata Kumar Das: https://appshunter.io/developer/1802433517

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-17.*