Open your agency's credit card statement and count the software subscriptions.
There is the CRM, of course. Then the email marketing platform, because the CRM's newsletters never looked right. A social media scheduler. A digital offers system. A proposal tool for listing presentations. Something for trust accounting, something for condition reports, something for online tenancy applications, and an SMS gateway billed by the message. Perhaps a Zapier account holding it all together.
Each one made sense on the day it was signed up. Together they are a stack - and most agencies on the larger CRMs have one, whether they planned it or not.
This article looks at what that stack really costs: in money, in the time spent shuffling data between systems, and in something most principals have not thought about yet - how many companies now hold a copy of their clients' personal information.
Cost one: the subscriptions add up
Every tool in the stack has its own monthly fee, its own per-user pricing and its own annual price rise. Individually they look small. Added together, many agencies are paying more for the bolt-ons than for the CRM they are bolted on to.
Then there are the costs that never appear on an invoice:
- Training. Every new staff member learns six systems, not one.
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Logins. Six sets of passwords to set up when someone starts, and six to remember to shut down when they leave.
- Integrations that break. When the offers system stops syncing to the CRM, someone spends an afternoon working out which side changed.
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Support. When something goes wrong, each vendor points at the other one.
MantisProperty was built the other way around. Prospecting, listings and portal uploads, email and SMS marketing, social media posting, digital proposals, digital offers, QR code open home check-ins, property management, trust accounting, digital condition reports, online lease agreements, vendor and tenant portals, a bookings calendar and the mobile apps are all part of the one platform, with no add-ons to buy. See the full feature list.
And the price comparison is not close. MantisProperty costs a fraction of the price of most other CRMs - before you even add the fees for the add-on services in your stack. Once you count those too, the gap only gets wider.
Trust accounting, built in
Trust accounting is one of the most expensive pieces of a typical stack, and one of the riskiest to run in a separate system, because every receipt and disbursement has to match what is happening in your sales contracts and tenancies.
In MantisProperty it is part of the CRM. Sales and rental trust accounting work side by side, with unlimited trust accounts and ledgers at no extra cost. Transactions are tracked automatically against each sales contract and lease, funds are disbursed at the click of a button, and every reconciliation report is archived permanently, so when the annual audit comes around everything your auditor needs is already in one place. It supports the record keeping each Australian state and territory requires. Read more about trust accounting.
Mobile apps included, not extra
Your agents and property managers do most of their work away from the desk, so the CRM has to go with them. MantisProperty has two native apps for iPhone and Android: Mantis Sales for sales agents and business brokers, and Mantis PM for property managers. They work straight from the same database as the CRM, so a note taken at an inspection or a contact added at an open home is in the office the moment it is saved.
Both apps are free to download and included in the MantisProperty Elite plan for users with CRM access - no in-app purchases and no per-user app fees. See the apps.
Cost two: your data is in pieces
A stacked CRM does not just cost more. It splits your business into separate databases that each know part of the story.
The buyer who made an offer last month is in the offers system. Their enquiries are in the CRM. The newsletter they opened yesterday is in the email platform. The social post they clicked is somewhere else again. Nobody in the office can see the whole picture without opening four tabs - so in practice, nobody does.
When everything lives in one place, the picture comes together on its own:
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One contact record. Every email, SMS, enquiry, inspection, offer, appointment and note against the same person, in the same place.
- Automations that reach across the business. An enquiry can trigger an autoresponder, a follow-up task and a buyer match, because the enquiry, the contact and the listing are in the same system.
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No syncing, no duplicates. Data that never has to be copied between systems never gets out of step, and never creates a second copy of the same contact.
- Reports you can trust. Sales, property management and marketing results come from one database, so the numbers agree with each other.
Cost three: every tool is another copy of your clients' data
This is the cost most agencies have not counted, and it is the one that matters most.
Real estate is an industry where people have no real choice about handing over their personal details. Buyers sign in at open homes. Tenants hand over payslips, references and licences. Vendors go through identity checks. Every one of those people is trusting your agency to look after what they gave you.
Now think about where that information actually goes in a stacked setup. To send a newsletter, the contact list is copied into the email platform. To run digital offers, buyer details go into the offers system. Proposals hold vendor names and addresses. Each tool keeps its own copy, on its own servers, under its own privacy policy and its own security, with its own list of staff who can see it. Each integration is another connection that can be misconfigured.
Every extra platform is another place a breach can start - and when it does, it is still your clients' details, and your agency's name, in the headlines.
The regulator is paying attention. In October 2024 the Office of the Australian Information Commissioner (OAIC) published guidance on using commercially available AI products, making clear that entering personal information into a publicly available AI tool is a disclosure of that information to the company behind it - and that, as best practice, personal information should not be entered into those tools at all. Since June 2025, individuals have also been able to take action directly for serious invasions of privacy.
A word on AI and "zero data retention"
AI has added a new layer to the stack. Many software vendors now send your data to an AI company behind the scenes, and staff are pasting contact lists into chatbots to segment, clean or write to them.
The phrase to understand here is zero data retention. As Stepps explains in their excellent article Zero Data Retention: The AI Term Every Real Estate Professional Needs to Understand, "we don't train on your data" and "we don't keep your data" are two very different promises. Business AI accounts and developer APIs commonly keep what is sent to them for a period, often around 30 days. True zero data retention is a special arrangement the AI company grants, and even then it has exceptions. Personal chatbot accounts offer none of this protection.
So every vendor in your stack that uses AI is worth one question: "What client data do you send to an AI company, and what is your retention arrangement with them?"
Here is our answer. The AI listing assistant in MantisProperty writes listing headings, descriptions and social media posts from the property's details - its type, suburb, bedrooms, bathrooms and features. It is never sent your contacts, vendors, buyers or tenants. And because segmenting, deduplicating and contacting your database all happen inside MantisProperty, your team has no reason to export it and paste it into a chatbot in the first place.
Questions to ask about your current stack
Whether or not you ever move CRM, these are worth asking this month:
- How many systems hold a copy of our contact database?
- What do we pay for all of them together each year, including per-user fees?
- When a staff member leaves, how many logins do we have to close?
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Which of our vendors use AI, what do they send it, and how long is it kept?
- If one of those vendors had a breach tomorrow, would we even know which of our clients were affected?
If the answers are uncomfortable, you are not alone. Most stacks grew one sensible decision at a time.
One platform, one subscription, one place for your data
MantisProperty gives sales agents, property managers and business brokers everything above in a single CRM, including trust accounting and the mobile apps: one subscription at a fraction of the price of most other CRMs, one login per person, one database, protected by two-factor authentication and multi-layered security. Support is free, seven days a week, along with free one on one training and a library of tutorial videos.
Moving does not mean starting again. We can bring your existing contacts and listings across, so your team picks up where they left off.