Comparison

uLock@HKU vs PolyU Halls

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

Head to head

uLock@HKU

HKU app for renting e-locker

Facilitate your hall life

Free

📚 Education

No ratingsView app →

About

uLock@HKU

Read full description

uLock@HKU is for HKU students with a valid HKU Portal account to rent and return e-lockers on campus. With this app, students can rent an e-locker for a maximum of 7 days. Various payments are supported, including: - Octopus Features - Rent an e-locker by scanning the QR code shown on cabinet screen. - Return an e-locker and pay the fee through Octopus Card. - Find available e-lockers on HKU campus.

About

PolyU Halls

Features

Read full description

PolyU Halls is a mobile app for PolyU hall residents to manage their e-purse for operating the electrical appliance and paying various small fees. The use of this APP is restricted to the hall residents for the above-mentioned purposes.

Screenshots

uLock@HKU4 screens

PolyU Halls4 screens

Verdict

The call

The clearest difference is update cadence: uLock@HKU at every 6 weeks against PolyU Halls's every 5 months. PolyU Halls's advantage is iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

uLock@HKU ships an update every 6 weeks, PolyU Halls every 5 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 4 level

uLock@HKU versus PolyU Halls: the parameters behind the verdict, then further details
Parameter	uLock@HKU	PolyU Halls
Price	Free	Free
Update frequency	Every 6 weeks — better	Every 5 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	17.6	15.6 — better
Further details — not scored
Size	14 MB	14 MB
Age rating	4+	4+
Developer	The University of Hong Kong	The Hong Kong Polytechnic University

In-app purchases

None

uLock@HKU

No in-app purchases

None

PolyU Halls

No in-app purchases

Questions

Is uLock@HKU free?

uLock@HKU is free to download, with no in-app purchases.

Is PolyU Halls free?

PolyU Halls is free to download, with no in-app purchases.

Do uLock@HKU or PolyU Halls have ads?

Neither uLock@HKU nor PolyU Halls shows ads.

Which is updated more often, uLock@HKU or PolyU Halls?

uLock@HKU ships an update every 6 weeks, and PolyU Halls every 5 months. Most recently, uLock@HKU was updated on October 24, 2026 and PolyU Halls on October 27, 2026.