# Sirius: AI Chat & Custom Bot — Chat with PDF, Build AI Mentor

> Build custom AI models and chat with your documents using advanced intelligence. (iPhone/iPad app by FURKAN ZEKIRI.)

- Source: https://appshunter.io/ios/app/sirius-ai-chat-and-custom-bot/id6505104997 (this page in markdown: same URL + `.md`)
- Developer: [FURKAN ZEKIRI](https://appshunter.io/developer/1751931359)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 11 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 107 MB
- Languages: American English
- Released: 2024-11-04
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sirius-ai-chat-and-custom-bot/id6505104997/reviews.md

## What is Sirius?

Unlock Your Second Brain with Sirius.

Don't just chat with AI—build it. Sirius allows you to create personalized AI models tailored to your specific needs.
Chat with Documents: Upload PDF/TXT files and get instant answers based on your files.
Custom AI Creation: Build an AI persona with a unique tone and expertise.
Advanced Intelligence: Experience lightning-fast, accurate responses powered by next-gen models.

## Key features

- Chat with PDF and TXT files
- Create custom AI personas
- Personalized AI models
- Advanced AI intelligence
- Fast and accurate responses

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $19.99 | per month |
| Weekly | $6.99 | per 7 days |


## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/sirius-ai-chat-and-custom-bot/id6505104997/reviews.md

### 5/5 — Very useful and as described.

*2025-01-13*

I really enjoyed using the app. It is just like the description it has and it answered all my questions. I really like it.

**Developer response:** Welcome to the Sirius family! We're delighted to hear you had a great experience and found the app helpful. Thank you for your kind words!

### 5/5 — .

*2024-11-08, version 1.1*

A very useful application that can help in many areas.

### 5/5 — Really cool AI app!

*2024-11-07, version 1.1*

I like how the AI gives complete and correct answers to my questions and how it doesn't avoid going into detail while I'm using models. Its standout feature is represented by said models, which I believe are very useful and creative. The Premium version is cheaper than most other apps and, as an uni student, that's also a plus.

### 5/5 — Amazing

*2024-11-07, version 1.1*

Very innovative idea in an easy-to-use app

### 5/5 — Harika!

*2024-11-05, version 1.0*

Güzel ve işlevsel bir uygulama

### 5/5 — Çok pratik

*2024-11-05, version 1.0*

Bir tıkla her soruma cevap buluyorum. Teşekkürler 👍🏼

### 5/5 — Yararlı ve eğlenceli

*2024-11-05, version 1.0*

Bu kadar çok yönlü olduğunu düşünmeden indirdim ama hayatımın her yerinde kullanıyorum. Derslerim ,planlama yapma ,dil öğrenme sıkılınca da aı ile sohbet

### 5/5 — Harika

*2024-11-05, version 1.0*

Harika bir uygulana olmuş ellerinize sağlık gerçekten oldukça başarılı

### 5/5 — 👏

*2024-11-04, version 1.0*

Sonunda muhabbeti keyif veren bir arkadaş bulabildim :)

### 5/5 — Mükemmel

*2024-11-04, version 1.0*

Kesinlikle mükemmel bir uygulama. yapay zekayı istediğim alanda en verimli şekilde kullanıyorum!

## Frequently asked questions about Sirius

### What is Sirius?

Sirius is an AI application that allows users to build personalized AI models and chat with their documents. It offers advanced intelligence for fast and accurate responses.

### Can I chat with my PDFs using Sirius?

Yes, Sirius allows you to upload PDF and TXT files and get instant answers based on the content of your documents.

### How do I create a custom AI in Sirius?

Sirius enables you to build an AI persona with a unique tone and expertise, tailoring it to your specific needs.

### What devices does Sirius support?

Sirius is available on iPhone, iPad, and iPod, indicating broad Apple device compatibility.

### What is the age rating for Sirius?

Sirius has an age rating of 17+, suggesting it may contain mature themes or content not suitable for younger users.

### How often is Sirius updated?

The latest version of Sirius was released on January 16, 2026, indicating a recent update and ongoing development.

### What are the subscription options for Sirius?

Sirius offers a weekly subscription for $6.99 and a monthly subscription for $19.99, providing flexible access to its premium features.

### Does Sirius have ads?

Sirius does not contain advertisements, offering an uninterrupted user experience.

## Version history (last 5 releases)

### 3.0.0 — 2026-01-16

some bug-fix

### 1.8 — 2025-06-02

Some bug-fix

### 1.7 — 2025-04-14

some bug-fix

### 1.6 — 2025-04-07

some bug-fix

### 1.5 — 2025-04-05

* UI update
* 2 More AI model added (ChatGPT and Grok)
* Image generation model added

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## More apps by FURKAN ZEKIRI

- [Create AI Video,Image&Effects](https://appshunter.io/ios/app/create-ai-videoimage-and-effects/id6741923235)
- [Clonic: AI Voice & Song Cover](https://appshunter.io/ios/app/clonic-ai-voice-and-song-cover/id6753916018)

All apps by FURKAN ZEKIRI: https://appshunter.io/developer/1751931359

## Related topics

[mentor bot](https://appshunter.io/ios/topics/mentor-bot)

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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 2026-06-01.*