Comparison

uLock@HKU vs ViSymulation Pro

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

Head to head
About

uLock@HKU

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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: - Apple Pay - AliPay - AliPayHK - Octopus Features - Rent an e-locker by scanning the QR code shown on cabinet screen. - Return an e-locker and pay the fee through mobile payment. - Find available e-lockers on HKU campus.

About

ViSymulation Pro

Features
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"ViSymulation Pro" is an augmented reality (AR) mobile application, developed by the Department of Ophthalmology, School of Clinical Medicine of the University of Hong Kong. It aims to educate users on the visual symptoms of common vision problems. Users could gain a first-person experience of the impaired vision and the corresponding difficulties encountered by the visually impaired persons (VIPs). As a result, the public awareness of vision protection is raised while the empathetic attitude towards the visually-impaired people are developed among the community. "ViSymulation Pro" provides 2 modes: 1. "Information About Vision Problems" - For individual users - Discover the aetiology, signs and visual symptoms of vision problems - Experience visual symptoms of vision problems through the 1-minute AR simulation 2. "Create/Join Room" - For groups and events - Remote-control function: control of multiple smartphones to display desired visual symptoms to realize group-based teaching This mobile app can simulate the following vision problems with three stages of progression (mild, moderate, and severe) or the subtypes: - Diabetic Retinopathy - Cataract - Glaucoma - Age-related macular degeneration - Retinitis Pigmentosa - Retinal Detachment - Myopia - Hyperopia - Presbyopia - Astigmatism - Color Blindness (Protanopia, Tritanopia, Deuteranopia, Monochromacy) - Visual Pathway Lesions (Left Homonymous Hemianopia, Left Homonymous Superior Quadrantanopia, Left Homonymous Inferior Quadrantanopia)

Screenshots

uLock@HKU4 screens
ViSymulation Pro4 screens

Verdict

The call

The clearest difference is iOS requirement: uLock@HKU at 11.0 against ViSymulation Pro's 13.0. On price, update cadence, ads and in-app purchases 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 fortnightly, ViSymulation Pro every 3 weeks. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 5 level
uLock@HKU versus ViSymulation Pro: the parameters behind the verdict, then further details
ParameteruLock@HKUViSymulation Pro
PriceFreeFree
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size20 MB240 MB
Age rating4+12+
DeveloperThe University of Hong KongHKU TELI

In-app purchases

None

uLock@HKU

No in-app purchases

None

ViSymulation Pro

No in-app purchases

Questions

Is uLock@HKU free?
uLock@HKU is free to download, with no in-app purchases.
Is ViSymulation Pro free?
ViSymulation Pro is free to download, with no in-app purchases.
Do uLock@HKU or ViSymulation Pro have ads?
Neither uLock@HKU nor ViSymulation Pro shows ads.
Which is updated more often, uLock@HKU or ViSymulation Pro?
uLock@HKU ships an update fortnightly, and ViSymulation Pro every 3 weeks. Most recently, uLock@HKU was updated on September 29, 2026 and ViSymulation Pro on October 1, 2026.

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