Polybai vs BTC Catalog
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Polybai
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Polybai is the student app for teachers who run their own platform through Polybai. Enter your teacher's web address once, sign in, and everything they publish is in one place: β’ Video lessons, in the order your teacher set β’ Worksheets and files for every lesson β’ Timed exams and quick checks, with your score the moment you submit β’ Homework: hand it in as a PDF, Word file or photo, and read your grade β’ My report: your results and when your access ends β’ Unlock a lesson or a whole course with the code your teacher gives you β’ English and Arabic, with the whole app in Arabic β’ Works on phones, tablets and foldables Each platform on Polybai belongs to its teacher: your account and your lessons come from your teacher's platform. Our main goal is to provide the best learning experience possible that everyone can get. We're pleasured to read your reviews and craft a masterpiece together.
BTC Catalog
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Our B2B catalog app is private and accessible only to approved business customers. To ensure security and prevent unauthorized use, login with a valid username and password is required. The app does not support other restricted access methods such as two-step verification, QR code scanning, or biometric login. During registration, we collect KYC documents to verify customer authenticity, reduce fraud risks, and maintain a trusted business environment for our users.
Screenshots
Verdict
Polybai and BTC Catalog are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Polybai ships an update every 5 days, BTC Catalog every 3 days. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.
| Parameter | Polybai | BTC Catalog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 16.4 | 15.6 β better |
| Further details β not scored | ||
| Size | 40 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Abdullrahman Yasser | Bullion Trading Center |
In-app purchases
Polybai
No in-app purchases
BTC Catalog
No in-app purchases





