Comparison

YPT vs Mobile@HKUL (HKU Libraries)

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

Head to head

YPT

Study together on YPT!

Free

📚 Education

★ 4.71.8K ratingsView app →

Mobile@HKUL (HKU Libraries)

Free

📚 Education

No ratingsView app →

About

YPT

Connect with millions globally to study together remotely. Track your progress, set daily goals, and join or create study groups. Visualize your achievements with detailed statistics and compete with others through real-time rankings.

Highlights

Time tracking for subjects
Daily 10-minute planner
Study group creation
Real-time ranking
Study statistics visualization
Friend activity monitoring

Features

Read full description

Study along with 5 million people all over the world. Studying is a marathon. Study together on YPT Record your study time and share it with friends. Get motivated with your friends and study together remotely. 1. Time tracking and todo Tracking study time for each subject. 2. 10 minutes planner Review your daily study logs. Check To-do for the day. 3. Study groups Create groups to check out friends' status and study activities. 4. Realtime ranking Get to know your rank in the same study category. 5. Study stats Color gets deeper as you study more. Visualize your day/week/month study records. [End User License Agreement | Privacy Policy | Terms of Service Use | Subscription Terms of Service] ▷ End User License Agreement (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ▷ Terms of Service Use : https://yeolpumta.notion.site/eb3f7a2886ac42d1b9e629a9075c339d ▷ Privacy Policy : https://yeolpumta.notion.site/4bdcc3a5d7c34803ad49d05f7422aea0 ▷ Subscription Terms and Conditions : https://yeolpumta.notion.site/87efb0d77a5b4a7bb6753a1653c3cb47 [ Customer Support ] ▷ E-Mail : pallo.ypt@gmail.com Addr: 16, Teheran-ro 53-gil, Gangnam-gu, Seoul, Republic of Korea Tel: 070-4571-4756

About

Mobile@HKUL (HKU Libraries)

Features

Read full description

Welcome to the official mobile app of The University of Hong Kong Libraries (HKUL). This app gives you quick mobile access to HKU libraries information and services. Features: - Locate libraries on and off campus - Facilities booking - check availability of library facilities, make/cancel reservation - Manage your account - view your loans, requests and fine/fees, online renewals and more - Search the Library Catalogue - Opening hours of libraries and study areas - View your current print quota - View your course information and reading lists - Search the Library Staff Directory and look up contact information - Receive alerts and announcements with Push Notifications - Receive the latest news and events from the HKUL - Access to HKU uPay mobile payment - Access to key e-resources on LibGuides New features are continuously being planned, so please keep checking for updates.

Screenshots

YPT4 screens

Mobile@HKUL (HKU Libraries)4 screens

Verdict

The call

The clearest difference is in-app purchases: Mobile@HKUL (HKU Libraries) at none against YPT's 8. YPT's advantage is update cadence (every 2 days vs every 4 months) and device support (4 vs 2). On price, ads and iOS requirement 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. YPT sells 8 in-app purchases, starting at $2.99 per month. Mobile@HKUL (HKU Libraries) asks for nothing beyond the download.

UpkeepUpdate frequency

YPT ships an update every 2 days, Mobile@HKUL (HKU Libraries) every 4 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level

YPT versus Mobile@HKUL (HKU Libraries): the parameters behind the verdict, then further details
Parameter	YPT	Mobile@HKUL (HKU Libraries)
Price	Free	Free
Rating	4.7 (1.8K ratings) — better	—
Positive reviews	55.7% of reviews	—
Number of ratings	1.8K — better	—
Update frequency	Every 2 days — better	Every 4 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad, iPod, Apple Watch — better	iPhone, iPad
Requires iOS	15.0 — better	16.0
Further details — not scored
Size	248 MB	69 MB
Age rating	4+	17+
Developer	UnCheon Baek	HKU Libraries

Bugs and requests

YPT

Reported bugs

4 issues

Timer not stopping when exiting the app
Inconsistent time recording across devices
Sudden language changes without user input
Connectivity issues and server problems

Requested features

4 requests

Add ability to edit/remove specific study time entries
Implement a desktop/web version of the app
Allow more customization options for the calendar and planner
Improve the allowed apps feature to work more reliably

Mobile@HKUL (HKU Libraries)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

YPT

Subscriptions3

Monthly subscription$2.991 Month
Monthly Premium$4.991 Month
Yearly Premium$29.991 Year

One-time5

100 flames$0.99
Unlock Apps$0.99
600 flames$3.99

Show 2 more

6 months$11.99
12months$19.99

None

Mobile@HKUL (HKU Libraries)

No in-app purchases

Questions

Is YPT free?

YPT is free to download, with in-app purchases available.

Is Mobile@HKUL (HKU Libraries) free?

Mobile@HKUL (HKU Libraries) is free to download, with no in-app purchases.

Do YPT or Mobile@HKUL (HKU Libraries) have ads?

Neither YPT nor Mobile@HKUL (HKU Libraries) shows ads.

Which is updated more often, YPT or Mobile@HKUL (HKU Libraries)?

YPT ships an update every 2 days, and Mobile@HKUL (HKU Libraries) every 4 months. Most recently, YPT was updated on November 1, 2026 and Mobile@HKUL (HKU Libraries) on October 27, 2026.