# Premsys — Datacenter-Free AI Assistant

> Datacenter-free AI assistant running powerful models locally on your iPhone. (iPhone/iPad app by Premsys Inc..)

- Source: https://appshunter.io/ios/app/premsys/id6791407839 (this page in markdown: same URL + `.md`)
- Developer: [Premsys Inc.](https://appshunter.io/developer/6791333243)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 12+
- Requires: iOS 26.0 · 59 MB
- Languages: American English
- Released: 2026-08-19
- Data updated: 2026-09-16
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/premsys/id6791407839/reviews.md

## What is Premsys?

WELCOME TO THE ERA OF DATACENTER-FREE AI. PRIVATE BY DEFAULT. 
Premsys runs powerful AI models entirely on your iPhone. Your chats, files, and questions never leave your device. No account. No cloud. No data harvesting, telemetry, or training.

YOUR AI, YOUR HARDWARE.
Choose your engine. Run Google Gemma 4 or Apple's on-device model, fully local. Native multimodal support means you can chat with text and images offline, on a plane, or anywhere the cloud can't. All directly on your own phone. 

PRIVATE WEB SEARCH, WHEN YOU WANT IT.
Need current information? Enable secure web search powered by Brave. Queries are sent only when you choose to use search. Everything else stays on-device. You control exactly what leaves your phone.

YOUR DAY AT A GLANCE
A live home dashboard puts your calendar, reminders, weather, personal health, and device status in one place. Tap "Brief my day" and your local model summarizes what matters, using data directly and securely from your iPhone. 

FREE TIER INCLUDES 
Gemma 4 E2B and Apple on-device models
Unlimited private chat, fully offline
Multimodal chat with images
Secure web search powered by Brave
Live dashboard with daily briefings based on calendar, reminders, weather, health data, and device status. 
No account required
No ads, no tracking, no telemetry, ever. 

GO PRO
The Premsys Pro tier unlocks a full AI workstation in your pocket with:

Enterprise-grade Private RAG. Chat with your documents. Pull files from iOS Files app, iCloud Drive, Dropbox, or Google Drive. Premsys indexes and learns from copies locally, so you can ask questions about your PDFs, notes, and contracts without uploading a single byte.
Gemma 4 E4B. Our largest on-device model. More power, same privacy.
Document Generation. Create PDF, Word, and Excel files directly from chat, generated on-device. Turn convos into deliverables. 

WHY DATACENTER-FREE MATTERS
Cloud AI means your prompts, your feelings, your work, and your digital life live on someone else's servers. Premsys is an on-premises AI infrastructure company that deploys private and secure AI for banks, hospitals, and factories. We bring those same principles to your phone: the AI model comes to your data, not the other way around.
Your AI should answer to you. Download Premsys and own your intelligence.

Premsys Pro is $12.99 per month. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings.
Terms of Use: https://premsys.ai/apptos
Privacy Policy: https://premsys.ai/appprivacypolicy

## Key features

- Datacenter-free AI
- On-device AI models
- Offline multimodal chat
- Private web search
- Live dashboard
- Chat with your documents (Pro)
- Document generation (Pro)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premsys Pro | $12.99 | per month |
| Premsys Pro | $99.99 | per year |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/premsys/id6791407839/reviews.md

### 5/5 — Amazing

*2026-09-07*

Such a powerful private tools to search , AI use in a private setting without having my personal info all over the web is amazing 
And all for FREE 
Thanks Premsys

### 5/5 — Fantastic Privacy-Centric AI

*2026-08-27*

I love the direction companies like Premsys are moving with AI. Privacy and data security is crucial for me, and this app allows me to have quality AI for everyday work tasks right in my pocket!

### 5/5 — Premsys

*2026-08-20*

Excellent.

### 5/5 — Very useful!

*2026-08-19*

Does most of what claude or chatgpt can do (create docs, multimodal, health insights) but totally offline/private and a fraction of the price- with no usage limits!

## Frequently asked questions about Premsys

### What is Premsys?

Premsys is a datacenter-free AI assistant that runs powerful AI models entirely on your iPhone. Your chats, files, and questions remain on your device, ensuring privacy by default.

### Does Premsys have ads?

No, Premsys is ad-free. The description explicitly states 'No ads, no tracking, no telemetry, ever.'

### What AI models can I use with Premsys?

The free tier includes Google Gemma 4 E2B and Apple's on-device model. The Pro tier unlocks Gemma 4 E4B, a larger and more powerful on-device model.

### Can I use Premsys offline?

Yes, Premsys is designed to run entirely offline. This includes unlimited private chat and multimodal chat with images, making it usable anywhere without an internet connection.

### How does Premsys handle my documents?

The Pro tier offers enterprise-grade Private RAG, allowing you to chat with your documents. Premsys indexes and learns from copies locally, so no data is uploaded.

### What is the cost of Premsys Pro?

Premsys Pro is available for $12.99 per month. Payment is charged to your Apple Account, and subscriptions renew automatically unless canceled at least 24 hours before the current period ends.

### What devices does Premsys support?

Premsys is supported on iPhone and iPad devices.

### How often is Premsys updated?

The latest version is 1.1.1, and it was last updated on September 8, 2026. This indicates a relatively frequent update schedule.

## Version history (last 3 releases)

### 1.1.1 — 2026-09-08

INTRODUCING VERSION 1.1 "THE THINKING UPDATE"

- Thinking Mode enabled for Gemma 4 E2B and E4B with animated activity indicators and summaries.
- MTP technology for faster, streamed local-model responses with improved stability and error recovery.
- Improved response continuity when switching apps.
- Long-press prompts to edit them, and long-press responses or chats to share.
- Added cross-app copying for model responses.
- Shared chats now include a descriptive topic title.
- Improved image and document understanding.
- Improved recognization and awareness of shipping label tracking numbers.
- Improved time/date awareness, web lookup handling, citations, and math formatting.
- Added safeguards against corrupted local-model output.
- Chat History can now be expanded or collapsed.
- Refreshed model descriptions, subscription wording, and model defaults.
- Added a Generated Files library. PDF, Word, and Excel files created by Premsys now appear as tappable, shareable attachments in chat and remain saved in Generated Files.
- Added comprehensive native LaTeX math rendering in chat, PDF, and Word, including equations inside tables.
- Improved PDF and Word document creation with real tables, properly formatted equations, and cleaner numbered lists.

### 1.1 — 2026-08-27

INTRODUCING VERSION 1.1 "THE THINKING UPDATE"

- Thinking Mode enabled for Gemma 4 E2B and E4B with animated activity indicators and summaries.
- MTP technology for faster, streamed local-model responses with improved stability and error recovery.
- Improved response continuity when switching apps.
- Long-press prompts to edit them, and long-press responses or chats to share.
- Added cross-app copying for model responses.
- Shared chats now include a descriptive topic title.
- Improved image and document understanding.
- Improved recognization and awareness of shipping label tracking numbers.
- Improved time/date awareness, web lookup handling, citations, and math formatting.
- Added safeguards against corrupted local-model output.
- Chat History can now be expanded or collapsed.
- Refreshed model descriptions, subscription wording, and model defaults.
- Added a Generated Files library. PDF, Word, and Excel files created by Premsys now appear as tappable, shareable attachments in chat and remain saved in Generated Files.
- Added comprehensive native LaTeX math rendering in chat, PDF, and Word, including equations inside tables.
- Improved PDF and Word document creation with real tables, properly formatted equations, and cleaner numbered lists.

### 1.0 — 2026-08-19

No release notes.

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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 2026-09-16.*