Archistar vs Realtair 2026: Which Property Platform Do You Actually Need?

Two of the strongest Australian-built tools in our Real Estate & Property category are Archistar and Realtair. Both scored 22/25. Both earned a perfect 5/5 on Australian Fit. And they are almost never an either/or decision — because they solve different problems at opposite ends of the property business.

Archistar answers the question "Is this site worth developing?" Realtair answers the question "How do I sell this property well?" If you confuse the two, you will buy the wrong subscription. This guide makes the choice obvious.

Quick look

Both are reviewed in full: Archistar and Realtair.

What each one costs in Australia

All prices in AUD, inclusive of GST, per each vendor's published pricing page.

Archistar's pricing is tiered by scope: how many states you need and how much feasibility depth. Its real friction is the single-state lock on Basic and Professional — a developer working across Melbourne and Brisbane has to jump to National at $595/month, with no dual-state middle option.

Realtair is flat: one price, every feature included, billed per agent. Its friction is the $499 one-off activation fee, which stings sole operators and has no free trial to soften it. For an agency putting five or ten agents on the platform, that fee disappears into the noise; for a one-person shop testing the water, it is a real barrier.

They do genuinely different jobs

This is the heart of it. These tools do not compete — they sit at different ends of the property lifecycle.

Archistar is a front-end decision tool for development. Open a site and it pulls more than 200 datasets — zoning, setbacks, height limits, floor space ratio, heritage overlays, flood mapping, bushfire attack level — onto one screen, then generates a compliant 3D building massing with yield and area schedules. The workflow is address-to-feasibility in minutes. It tells a developer whether a site is worth chasing before they pay consultants to find out.

Realtair is a back-end execution tool for sales. It runs the whole sell-side process: vendor pitch decks (Pitch), live and remote hybrid auctions with vendor bids, private treaty offers, timed auctions, digital deposits straight to the agency trust account, and document signing (Sign) — all in one platform. The workflow is listing-to-exchange without the multi-tool juggle.

Put plainly: Archistar helps you decide what to build or buy. Realtair helps you sell what is built. A developer uses Archistar to screen sites; an agent uses Realtair to take those finished properties to market. The same property could pass through both — years apart, in different hands.

Where each one wins

Archistar wins on:

• Planning data depth. Council-level controls across all eight states and territories, scored 5/5 on Feature Depth. Nothing comparable exists in the Australian market.
• AI generative design. It does not just describe the planning envelope — it builds a compliant 3D design inside it, with yield numbers, in real time.
• A genuinely useful free tier. Basic research and AI design at no cost — a real entry point for buyer's agents and architects, not a 14-day trial.

Realtair wins on:

• Auction execution. Simultaneous in-room and remote hybrid auctions, with vendor bids handled in-flow — purpose-built for the Australian method, where global platforms simply do not understand the mechanics.
• Trust account deposits. Digital deposits flow directly to the agency trust account, with compliance baked in rather than bolted on. Global competitors miss this entirely.
• All-in-one sales scope. Pitch, auction, private treaty, timed auction, deposits, and Sign in one integrated platform — replacing four or five disconnected subscriptions.

Australian fit: a dead heat

Both platforms earned 5/5 on Australian Fit, and both deserve it. Archistar was built in Sydney around the fragmented reality of Australian planning law — council-level data, BAL and flood mapping calibrated to local conditions, Privacy Act 1988 (Cth) compliant. Realtair was built around how Australians actually sell: vendor bids, cooling-off waivers, trust-account deposits, AUD-inclusive-of-GST pricing, and six-day support that covers Saturday auctions.

Because the Australian Fit scores are identical (5/5 each), the Australian Fit gate does not separate them — both clear the ≥4/5 threshold comfortably, and both wear five stars legitimately. The decision comes down entirely to which job you need done, not which tool is "more Australian."

One caveat, and it is Realtair’s alone: its privacy page returned a 404 when we checked it, so nothing about where it stores data is public. Archistar’s privacy policy does state onshore storage — uploaded content at rest stays on servers in Australia unless you share it with someone elsewhere. If onshore residency is a hard requirement for your business, get it in writing from Realtair before you sign.

Who should pick which

Pick Archistar if you are deciding whether to develop or buy a site. Developers, architects, and town planners running feasibilities are its core users. Start on the free tier or Basic ($95/month) for occasional single-state checks; move to Professional ($345/month) once you are running several feasibilities a month; take National ($595/month) only if you are actively developing across multiple states. Just remember its outputs are indicative — a go/no-go signal, not a bankable analysis you take to a lender.

Pick Realtair if you are selling property, especially via auction. Active auction agents and agency principals running five or more campaigns a month are exactly who it is built for. At $189/agent/month plus the $499 activation fee, it pays for itself fast at that volume; at very low listing counts, do the hours-saved maths first.

If you do both — a developer with an in-house sales arm — run both. They are complementary, not overlapping. Archistar screens the opportunity; Realtair sells the finished product. There is no waste in owning both, because there is no feature overlap to pay for twice.

The honest limitation: neither tool replaces the professionals around it. Archistar's feasibility numbers still need a planner and a quantity surveyor to become bankable. Realtair's auction and deposit flows still need you to confirm state-specific compliance — NSW Fair Trading, Consumer Affairs Victoria, and the equivalents — directly with the vendor for your jurisdiction.

Frequently asked questions

Are Archistar and Realtair available in Australia?

Yes. Both are Australian-built. Archistar was Sydney-founded and covers all eight states and territories; Realtair is national and Australian-only by design, and is a REA Group subsidiary.

How much do they cost in AUD?

Both price in AUD inclusive of GST. Archistar runs Basic $95/month (single state) up to National $595/month (all states). Realtair is flat at $189/agent/month with all features, plus a one-off $499 activation fee.

Is there a free trial?

Archistar has a usable free tier with basic research and AI design. Realtair has no free option — and the $499 activation fee has no trial to soften it, which stings sole operators.

Which property platform do I actually need?

Different jobs. Pick Archistar if you're deciding whether to develop or buy a site — it answers "is this site worth developing?" Pick Realtair if you're selling property, especially via auction — it answers "how do I sell this well?"

Do they store data in Australia?

Archistar states it clearly — its privacy policy says uploaded content at rest stays on servers in Australia unless you share it with someone elsewhere. Realtair does not: its privacy page returned a 404 when we checked. Get it in writing from Realtair if onshore residency is a hard requirement.

Read next

• Full review: Archistar Review Australia 2026
• Full review: Realtair Review Australia 2026
• Category guide: Best AI Tools for Australian Real Estate & Property 2026

Sources

1. Archistar — Pricing page — archistar.ai/pricing — checked 13 June 2026
2. Archistar — Platform overview — archistar.ai — checked 13 June 2026
3. Archistar — Privacy policy — archistar.ai/privacy — re-pointed 22 September 2026; the previously cited archistar.ai/security returns HTTP 404. Primary; Privacy Act 1988 (Cth) compliant; states onshore storage for Australian users. Originally checked 13 June 2026; re-read live 22 September 2026
4. Realtair — Product overview and feature list — realtair.com — checked 13 June 2026
5. Realtair — Pricing page — realtair.com/pricing — checked 13 June 2026
6. REA Group — Corporate overview (ownership) — rea-group.com — checked 13 June 2026
7. Data residency — corrected 21 September 2026: archistar.ai/privacy does publish an explicit onshore-storage statement for Australian users — uploaded content “when at rest, will remain on servers located in Australia unless you share that content with a person located elsewhere”. realtair.com/privacy still returns a 404; confirm directly with Realtair before relying on it for compliance-sensitive use — originally checked 13 June 2026, re-read 21 September 2026

Scores cited from our full reviews of each platform (both reviewed 7 June 2026). Capture Wayback snapshots of all primary sources before publishing.

The AI Directory Australia is an independent editorial publication. We don't accept payment for positive reviews. Read our Methodology and Affiliate Disclosure.