Comparison

MO+ vs Coolray

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

Head to head
About

MO+

Features
Read full description

Join now and become a “MOman” — owning every new, cute, cool moment that drops. MO+ is the newest mobile brand from Hutchison Telecommunications Hong Kong, built for young people who live online and move fast.

About

Coolray

Features
Read full description

Reduce the Cost of Ownership Coolray can reduce your HVAC system’s operating costs. It provides precise temperature control, reducing energy usage. This smart thermostat app also ensures you get the services you need when you need them. It incorporates the following innovative features: • Remote monitoring • Predictive maintenance alerts • One-touch appointment booking • Service at the touch of a button A crisp LCD screen ensures all functions are easy to find and use. Is your home not comfortable or are energy costs going up? Use the onscreen service request feature to get prompt assistance from your local HVAC company. Get the Most Out of Your Climate Control System The Coolray app lets you control and monitor temperature, fan speed, and other functions via the main control panel or a smartphone. The future of home comfort and on-demand service, it delivers benefits including: • Smart Notifications: Receive instant notifications on changes in system performance so you can be proactive with maintenance. • Real-Time Monitoring: By monitoring the health of your HVAC system, Coolray can provide predictive maintenance alerts, which can prevent downtime and increase equipment lifespan. • Service Alerts: Receive notifications of service reminders, membership renewals, and more. Even receive custom messages from your HVAC provider. • Diagnostic Tools: An overview of system health and air quality are available at the touch of a button, at no extra cost. • System Health and Air Quality Alerts: If a problem with your climate control system or an indoor air quality issue is detected, you and your service provider will be automatically notified. Quick and Simple Installation The convenience of a Coolray thermostat begins even before you start using it. Swapping out an old unit is simple. A technician removes the old thermostat, mounts the new one, and connects the wiring. They’ll even help you set up the app. The new model’s settings are adjusted to meet your climate control requirements. It provides an instant response so you experience immediate comfort. Settings from the old thermostat instantly transfer over using the serial numbers of both units, so the process is fast, simple, and convenient. Forge an Instant Connection with Your HVAC Provider The Coolray thermostat and app display your HVAC company’s logo onscreen. Their help is available at the touch of a button, so you can put your trust and confidence in a local contractor. It’s not just a modern thermostat. Coolray is a direct link between you and your AC/heating services provider. Be a Part of the NuveNetwork Nuve has partnered with local HVAC companies so you benefit from new services and smart technologies. Real-time access to your system allows contractors to quickly diagnose and resolve system issues. This can result in fewer emergency calls and in-home visits, so you can save time and money. Get Started Today Getting a Coolray thermostat and app is easy. Once you’re ready, a representative will contact you and schedule an appointment. Visit the App Store or contact your HVAC dealer to learn more.

Screenshots

MO+4 screens
Coolray4 screens

Verdict

The call

MO+ and Coolray are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

MO+ ships an update every 3 weeks, Coolray monthly. Both last shipped on October 17, 2026.

ScorecardNo meaningful differences
MO+ versus Coolray: the parameters behind the verdict, then further details
ParameterMO+Coolray
PriceFreeFree
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size88 MB63 MB
Age rating4+4+
DeveloperHutchison Telephone Company LimitedNuve Home

In-app purchases

None

MO+

No in-app purchases

None

Coolray

No in-app purchases

Questions

Is MO+ free?
MO+ is free to download, with no in-app purchases.
Is Coolray free?
Coolray is free to download, with no in-app purchases.
Do MO+ or Coolray have ads?
Neither MO+ nor Coolray shows ads.
Which is updated more often, MO+ or Coolray?
MO+ ships an update every 3 weeks, and Coolray monthly. Most recently, MO+ was updated on October 17, 2026 and Coolray on October 17, 2026.

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