Sirius vs Pdf Summerizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Chat with PDF and TXT files
- Create custom AI personas
- Personalized AI models
- Advanced AI intelligence
- Fast and accurate responses
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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.
Pdf Summerizer
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PDF Summarizer: AI Summarize makes reading easier by providing instant AI-powered summaries of your PDFs. Simply import a PDF, and our advanced AI will extract key insights, helping you save time and focus on what matters most. With a clean and intuitive interface, you can quickly summarize long documents, research papers, reports, and more—perfect for students, professionals, and anyone who needs quick comprehension. Your privacy is our priority. All data is stored locally, and only extracted text is sent for AI processing. No accounts, no tracking—just fast, efficient summaries. Try PDF Summarizer: AI Summarize today and simplify your reading! Privacy Policy: https://sites.google.com/view/pdf-summerizer-privacy-policy Terms of Use: https://sites.google.com/view/pdf-summerizer-terms-of-use
Screenshots
Verdict
Sirius and Pdf Summerizer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sirius sells 2 in-app purchases, starting at $6.99 per 7 days and Pdf Summerizer sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Sirius ships an update fortnightly, Pdf Summerizer monthly. The most recent releases landed on June 1, 2026 and April 23, 2026 respectively.
| Parameter | Sirius | Pdf Summerizer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 107 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | FURKAN ZEKIRI | Bugrahan Gulmez |
In-app purchases
Sirius
- Weekly$6.997 Days
- Monthly$19.991 Month
Pdf Summerizer
- Monthly Subscription$5.991 Month
- Yearly Subscription$29.991 Year
