Comparison

Sirius vs Chat AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sirius

Create personalized AI models and chat with your documents. Get instant answers from PDFs and TXTs, and build AI personas with unique tones and expertise. Experience fast, accurate responses powered by advanced intelligence.

Highlights
  • Chat with PDF and TXT files
  • Create custom AI personas
  • Personalized AI models
  • Advanced AI intelligence
  • Fast and accurate responses
Features
Read full description

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.

About

Chat AI

Features
Read full description

Discover a world of knowledge with Chat AI – Your ultimate chatbot assistant for all your questions. Whether you're curious, solving problems, or seeking advice, Chat AI provides quick and accurate answers. Key Features: - Academic Queries: From science to history, get detailed and reliable responses. - Practical Tips: Cooking, fitness, and nutrition advice tailored to your needs. - Professional Insights: Coding, legal insights, and tech support at your fingertips. - Creative Solutions: Generate blogs, recipes, and poems with ease. - Fun & Learning: Engage with specialized bots like "Math Master," "Fitness Guru," "Science Geek," and more. Top Reasons to Choose Chat AI: - Unlimited Usage: Access AI chatbots without restrictions. - Instant Answers: Get reliable information quickly. - Vast Knowledge Base: Covers a wide range of topics. - User-Friendly Interface: Easy navigation for a seamless experience. - Expert Assistance: Specialized bots for diverse interests. Explore Unique Bots: - Chef Buddy: Culinary expertise and recipe recommendations. - Math Master: Simplify complex mathematical concepts. - Fitness Guru: Achieve your fitness goals. - Gaming Xpert: Stay ahead in the gaming world. - IT Expert: Swift tech support. - Poetry Lover: Dive into the world of poetry. - Science Geek: Explore scientific realms. - Sports Fan: Stay updated on sports events. - Travel Guide: Plan your next adventure. - History Buff: Journey through history. - Programming Guru: Master coding and algorithms. Forget endless searches and unreliable sources. Chat AI provides instant access to trustworthy information, helping you stay informed and make decisions quickly. Ask anything, anytime, anywhere – Chat AI is here for you. Experience the Future of Learning: - Unlimited Access - Instant Answers - Vast Knowledge Base - Accurate Information - Easy-to-Use Interface Download Chat AI now and start your journey of discovery. Get accurate, reliable answers and boost your curiosity with Chat AI. Auto-renewing subscriptions: Premium Access (Weekly, Monthly, Annual) Length of subscription: 1 week, 1 month, or 1 year, depending on your selection Price of subscription: USD 2.49/week, USD 6.99/month, or USD 59.99/year Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://techrozsolutions.netlify.app/chat_ai/privacy_policy

Screenshots

Sirius4 screens
Chat AI4 screens

Verdict

The call

The clearest difference is iOS requirement: Chat AI at 12.0 against Sirius's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sirius sells 2 in-app purchases, starting at $6.99 per 7 days and Chat AI sells 3 in-app purchases, starting at $59.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sirius ships an update fortnightly, Chat AI every 2 weeks. The most recent releases landed on June 1, 2026 and March 7, 2026 respectively.

Scorecard1 real difference · 9 level
Sirius versus Chat AI: the parameters behind the verdict, then further details
ParameterSiriusChat AI
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size107 MB92 MB
Age rating17+4+
DeveloperFURKAN ZEKIRIMehroz Sheikh

In-app purchases

2 purchases

Sirius

Subscriptions2
  • Weekly$6.997 Days
  • Monthly$19.991 Month
3 purchases

Chat AI

Subscriptions3
  • Yearly - 3 Days Trial3 Days trial$59.991 Year
  • Weekly - 3 Days Trial3 Days trial$59.997 Days
  • Monthly - 3 Days Trial3 Days trial$69.991 Month

Questions

Is Sirius free?
Sirius is free to download, with in-app purchases available.
Is Chat AI free?
Chat AI is free to download, with in-app purchases available.
Do Sirius or Chat AI have ads?
Neither Sirius nor Chat AI shows ads.
Which is updated more often, Sirius or Chat AI?
Sirius ships an update fortnightly, and Chat AI every 2 weeks. Most recently, Sirius was updated on June 1, 2026 and Chat AI on March 7, 2026.

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