Comparison

AirTouch 2+ vs QRystal

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

Head to head
About

AirTouch 2+

Control your home's ducted air conditioning remotely. Adjust mode, temperature, fan speed, and individual room air volume from your smart device. Manage your climate from anywhere, anytime, even when you're away from home.

Highlights
  • Remote AC control
  • Adjust mode, temperature, fan speed
  • Individual room air volume control
  • Smart device interface
  • Remote access over internet
  • Set timers
Features
Read full description

You’re in control of your home climate with AirTouch 2+. Featuring a new smart and easy to use interface design, you can now use your smart device to control AC mode, temperature and fan speed of reverse cycle ducted air conditioning units connected to your AirTouch system at home, as well as the air volume for individual rooms. While you can control your system with your smart device over your WiFi network with internet connectivity at home, now you’ll never have to worry about leaving it turned on when you are out and about, as you can check and turn it on or off, and set a timer for when you get home remotely over the internet from anywhere. Requires an AirTouch 2+ system installed by a suitable air conditioning professional.

About

QRystal

Features
Read full description

Preserve Memories, Share Moments, and Create Timeless Connections QRystal is more than jewellery, it’s a gateway to preserving life’s most meaningful memories. Our app pairs beautifully with QRystal necklaces, allowing you to embed special moments —photos, videos, or heartfelt notes— into a crystal-embedded QR code. Whether it’s a gift for someone you love or a keepsake for yourself, QRystal transforms memories into something tangible, permanent, and deeply emotional. KEY FEATURES: - Create and Personalise Memories: Easily upload photos, videos, or written messages to your QRystal necklace. - Secure and Private: Advanced encryption ensures that only the intended receiver can view the memory, with passcode protection for added privacy. - Effortless Scanning and Viewing: Simply scan the QR code on the necklace to instantly access the memory. - Timeless Preservation: Once saved, memories cannot be deleted, making them as lasting and unchangeable as a physical photo or handwritten letter. - Seamless User Experience: A simple and intuitive app design makes creating, managing, and viewing memories effortless. HOW IT WORKS: For the Sender: 1. Visit our shop at https://qrystal.com.au and choose a QRystal necklace to begin. 2. Download the QRystal app, scan the unique QR code on the necklace, and upload your cherished memories (photos, videos, or notes). For the Receiver: 1. Scan the QR code on the necklace using the QRystal app to unlock and view the memory. 2. Add a passcode to protect the memory and ensure it remains private. PERFECT FOR: - Birthdays and Anniversaries - Weddings and Engagements - Graduations and Achievements - Memorials and Keepsakes - Any moment worth preserving forever WHY QRystal? QRystal blends the beauty of fine jewellery with the power of technology to preserve life’s most cherished moments. It’s more than a gift, it’s a way to celebrate connections, express love, and create a legacy that lasts a lifetime. Whether you’re gifting or keeping it for yourself, QRystal ensures your memories are always within reach. Download the QRystal app today and turn your jewellery into a timeless treasure.

Screenshots

AirTouch 2+4 screens
QRystal4 screens

Verdict

The call

The clearest difference is update cadence: QRystal at monthly against AirTouch 2+'s every 8 months. 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

AirTouch 2+ ships an update every 8 months, QRystal monthly. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.

Scorecard1 real difference · 7 level
AirTouch 2+ versus QRystal: the parameters behind the verdict, then further details
ParameterAirTouch 2+QRystal
PriceFreeFree
Positive reviews12.5% of reviews—
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size11 MB48 MB
Age rating4+4+
DeveloperPolyaireCANGURU TECH PTY LTD

Bugs and requests

AirTouch 2+

Reported bugs

51 issues
  • App not working for years
  • Remote control fails when out of house
  • App only connects on same frequency (2.5-5ghz)
  • Cannot connect with the app
  • Connects only one time in twenty attempts
Show 46 more
  • App breaks after update
  • App requires update but none available
  • Console updates don't sync with app
  • App shows 'connecting' then fails
  • Changing settings on app rarely works
  • Temperature jumps back to unwanted setting
  • App crashes almost instantly
  • App disconnects every time it's opened
  • Timers get deleted by other users
  • Login details autofilled but sometimes incorrect
  • App turns off all rooms after running a program
  • App works very badly with VoiceOver
  • App won't log in most of the time
  • App doesn't connect over WiFi
  • App disconnects an hour later
  • App doesn't connect
  • App doesn't work on mobile data
  • App requires login every time, fails then logs in
  • Remote connection needs to reconnect
  • App times out and disconnects
  • App says update available but none found
  • App doesn't register turning AC off
  • App often won't open, says check WiFi
  • App constantly drops internet connection
  • App touch sensitive, changes revert
  • App crashes, disconnects, reconnects
  • App appears off but AC is still on
  • App can't connect to aircon, various error messages
  • App constantly times out when opening
  • Constant fetch time out error
  • Times out, logs itself out, forgets details
  • Rarely connects first time, requires closing/reopening
  • App doesn't show home inside temperature
  • App won't connect any longer
  • Constant timeouts after buggy update
  • Doesn't work unless connected to WiFi
  • Crashes almost everyday
  • Control unit constantly drops WiFi
  • Comes up with timeout error
  • Connectivity unreliable even on local network
  • Doesn't work when you want it to
  • Half the time it times out when connecting
  • Doesn't register keystrokes
  • Many timeout and data fetch errors
  • Has to exit and close app multiple times to become responsive
  • Constant fetch data timeout errors over the internet

Requested features

20 requests
  • Fix app to work remotely
  • Improve connectivity
  • Fix band steering support
  • Make app accessible for visually impaired
  • Show home inside temperature
Show 15 more
  • Allow overlapping programs
  • Set fan speed in programs
  • Fix timer deletion issue
  • Improve login process
  • Fix settings not registering
  • Allow remote control outside local WiFi
  • Fix temperature jumping issue
  • Improve app stability
  • Fix app crashing
  • Fix app not turning off AC
  • Fix app touch sensitivity
  • Fix app login issues
  • Fix app timeouts
  • Fix app fetching errors
  • Improve away mode instructions

QRystal

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AirTouch 2+

No in-app purchases

None

QRystal

No in-app purchases

Questions

Is AirTouch 2+ free?
AirTouch 2+ is free to download, with no in-app purchases.
Is QRystal free?
QRystal is free to download, with no in-app purchases.
Do AirTouch 2+ or QRystal have ads?
Neither AirTouch 2+ nor QRystal shows ads.
Which is updated more often, AirTouch 2+ or QRystal?
AirTouch 2+ ships an update every 8 months, and QRystal monthly. Most recently, AirTouch 2+ was updated on October 27, 2026 and QRystal on October 22, 2026.

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