Comparison

G1 Building vs Central SQ

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

Head to head

Building App

Central Square

About

G1 Building

Features

Read full description

The G1 building app coordinates numerous building functions with an interactive interface to gain access to the building, book amenity, find out information on local retailers with offers and provide a source of information on building functionality.

About

Central SQ

Features

Read full description

Tenants at Central Square can now enjoy a more streamlined and responsive experience utilising this new building app. Beyond operational efficiency, tenants can RSVP to upcoming events, participate in sustainability initiatives, and receive alerts about building-wide updates or emergencies. Download now and see how your experience at Central Square can be enhanced.

Screenshots

G1 Building4 screens

Central SQ4 screens

Verdict

The call

G1 Building and Central SQ 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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences

G1 Building versus Central SQ: the parameters behind the verdict, then further details
Parameter	G1 Building	Central SQ
Price	Free	Free
Update frequency	Fortnightly	Fortnightly
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.5	15.5
Further details — not scored
Size	319 MB	320 MB
Age rating	4+	4+
Developer	Union Investment Real Estate GmbH	COLLIERS INTERNATIONAL (NSW) PTY LIMITED

In-app purchases

None

G1 Building

No in-app purchases

None

Central SQ

No in-app purchases

Questions

Is G1 Building free?

G1 Building is free to download, with no in-app purchases.

Is Central SQ free?

Central SQ is free to download, with no in-app purchases.

Do G1 Building or Central SQ have ads?

Neither G1 Building nor Central SQ shows ads.

Which is updated more often, G1 Building or Central SQ?

G1 Building ships an update fortnightly, and Central SQ fortnightly. Most recently, G1 Building was updated on October 24, 2026 and Central SQ on October 7, 2026.