HKBU UChat vs ChemEye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HKBU UChat
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UChat is an app for staff of Hong Kong Baptist University to communicate and collaborate over wifi, 3G, and 4G LTE
ChemEye
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ChemEye is used to turn your mobile device as a detector and readout device for colorimetric measurement. Colorimetry is a technique in analytical chemistry that is applied to measure the amount of colored compounds in solution, such as heavy metals, sugars, proteins, food additives, and environmental pollutants. The use of ChemEye would replicate the function of a spectrometer with comparable accuracy, sensitivity and repeatability. This app is designed to enable you to: - Understand the basic principles and theory of colorimetry; - Solve real-life analytical science problem; - Perform detection anytime and anywhere; and - Learn outside the laboratory.
Screenshots
Verdict
The clearest difference is update cadence: ChemEye at weekly against HKBU UChat's every 3 weeks. ChemEye also leads on iOS requirement (10.0 vs 12.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HKBU UChat ships an update every 3 weeks, ChemEye weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | HKBU UChat | ChemEye |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 136 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Hong Kong Baptist University | Apps Resource Centre, Hong Kong Baptist University |
In-app purchases
HKBU UChat
No in-app purchases
ChemEye
No in-app purchases
