Comparison

Polybai vs BTC Catalog

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

Head to head
About

Polybai

Features
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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.

About

BTC Catalog

Features
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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

Polybai4 screens
BTC Catalog4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

ScorecardNo meaningful differences
Polybai versus BTC Catalog: the parameters behind the verdict, then further details
ParameterPolybaiBTC Catalog
PriceFreeFree
Update frequencyEvery 5 daysEvery 3 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS16.415.6 β€” better
Further details β€” not scored
Size40 MB2 MB
Age rating4+4+
DeveloperAbdullrahman YasserBullion Trading Center

In-app purchases

None

Polybai

No in-app purchases

None

BTC Catalog

No in-app purchases

Questions

Is Polybai free?
Polybai is free to download, with no in-app purchases.
Is BTC Catalog free?
BTC Catalog is free to download, with no in-app purchases.
Do Polybai or BTC Catalog have ads?
Neither Polybai nor BTC Catalog shows ads.
Which is updated more often, Polybai or BTC Catalog?
Polybai ships an update every 5 days, and BTC Catalog every 3 days. Most recently, Polybai was updated on October 14, 2026 and BTC Catalog on October 19, 2026.

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