In practice · Entry 6
Comparing antivirus products
A method for evaluating a purchase: what to establish before looking at any product, what to verify on the vendor's own pages, and which rights apply to an Australian consumer buying software.
Short answer
Work in this order: list the devices and their platforms, decide what the product must add beyond what those platforms already do, check subscription and renewal terms on the vendor's own pages, read the privacy policy, then look at independent test methodology. Price is the last consideration, not the first.
What this entry does not do
It does not rank products or publish scores. Momentum Space has not purchased, installed or measured competing products, and a comparison table built from marketing pages would be a table of marketing pages. What follows is a method a reader can apply themselves, using sources that are checkable. The one product described in detail on this site is described in the catalogue entry, and the commercial reason it is the one covered is set out in the affiliate disclosure.
Step one: describe what you are protecting
Most purchases go wrong here, by starting from products instead of circumstances. Before reading any vendor page, write down the devices: how many, which operating system on each, which version, and who uses them. Then note what is actually on them that matters — work documents, family photographs, a small business's records — and where a copy of that lives if the device were lost tomorrow.
That list often changes the conclusion. A household of iPhones and iPads is not buying scanning, because iOS does not permit it. A single Windows laptop that already runs Microsoft Defender is buying a different engine and whatever else is bundled. A small business with staff devices is in a different category again, and the Australian Cyber Security Centre publishes small business guidance that is the appropriate starting point there.
Step two: separate the engine from the bundle
Consumer security is sold in tiers, and higher tiers add components that are separate products sharing an account: a VPN, a password manager, breach monitoring, parental controls, cloud storage, identity services. Two things follow.
- A longer list is not a better scanner. The scanning engine is one line in it.
- Paying twice is common. A person who already subscribes to a password manager, or whose bank provides breach alerts, may be buying those a second time inside a bundle.
Write down which components you would use in the next three months. Components you would not use are not value, whatever the tier comparison implies.
Step three: verify on the vendor's own pages
Everything in this table is a checkable fact published by the vendor, not an opinion. Third-party pages, including this one, are not the authority for any of it.
| What to check | Where it is stated | Why it matters |
|---|---|---|
| Supported operating systems and versions | System requirements page | An older macOS or Android version may not be supported at all |
| What the app does on each platform | Per-platform feature page or footnotes | Capability differs by platform regardless of vendor |
| Number of devices, and whether they can be moved | Pricing table and account documentation | Replacing a device mid-term should not cost a licence |
| Subscription length and renewal price | Checkout page and terms | An introductory period and the renewal rate are different figures |
| How to cancel, and where the control is | Terms and account settings | Find it before subscribing, not at renewal |
| Refund policy and its window | Terms or a refund policy page | Determines what happens if the product is unsuitable |
| Currency charged | Checkout | A price shown in another currency may attract a conversion fee from your card issuer |
| Trial terms | Trial signup page | Whether it converts to a paid subscription automatically, and when |
| Support channels and hours | Support page | Hours quoted in another time zone may not overlap with yours |
| Data handling | Privacy policy | See scanning and privacy for the passages that matter |
Two habits make this durable. Take a screenshot of the terms displayed at the moment of purchase, and keep the confirmation email. If a dispute arises later, what was shown at that moment is the relevant record.
Step four: use independent testing properly
Organisations such as AV-Comparatives and AV-TEST publish comparative testing of security products along with the methodology used. The methodology is the part worth reading. It states what was tested, on which platform and version, with what sample set, and how false positives were counted — and those conditions determine whether a result means anything for your situation.
Three cautions. Results are specific to a version and a period, so a figure quoted without a date is not usable. Tests are usually run on Windows, so a Windows result says nothing about the same brand's Android or iOS app. And a score reproduced on a vendor's own marketing page is a selected result; the original publication is where the context is.
Your rights as an Australian consumer
The Australian Competition and Consumer Commission administers the Australian Consumer Law, which applies to goods and services supplied to consumers in Australia, including software. Two features of it are worth knowing before any purchase.
Consumer guarantees apply automatically and cannot be removed by a term in a contract. A supplier's terms cannot validly exclude them, and a statement that all warranties are excluded does not change what the law provides. The ACCC's published material explains which guarantees apply and what remedies can follow when something is not as described or not fit for its purpose.
Misleading or deceptive conduct in trade or commerce is also prohibited, which is why claims on this site are sourced or omitted. A publisher is responsible for what it states, not only the advertiser whose product is described.
Pressure is a signal, not an offer
A countdown, a warning that a device is already infected, an unsolicited call about a subscription, or a pop-up claiming a scan has found problems are not sales techniques to evaluate. They are described on Scamwatch as methods used against consumers. A legitimate security product can be bought calmly tomorrow, from the vendor's own site, at a price that will still be there.
Questions readers ask
There is no legal requirement to buy security software in Australia, and every mainstream operating system ships with protection already enabled. A paid product is worth considering when it adds something the built-in tools do not cover on the platforms you actually use, or when you want the bundled extras. It is not a replacement for updates, backups and multi-factor authentication.
No. The platform decides what a security app is permitted to do. On Windows a third-party engine can take over real-time scanning, on macOS and Android it can scan within limits, and on iOS no app can scan another app's files at all, so an iOS app provides web filtering or breach alerts instead. Count the devices by platform before buying.
Check whether the subscription renews automatically, what the renewal price is rather than the introductory price, how many days before renewal you are notified, where the cancellation control is inside the account, and what the vendor's refund policy says. Take a screenshot of the terms shown at the moment of purchase.
Consumer guarantees under the Australian Consumer Law apply to goods and services supplied to consumers and cannot be excluded by a contract term. The Australian Competition and Consumer Commission explains these guarantees and what remedies may apply when something is not as described or not fit for purpose.
No. Bundles combine a scanning engine with separate products such as a VPN, a password manager or breach alerts, which are commercial groupings rather than measures of detection quality. Compare the scanning engine separately from the extras, and check whether you already pay for any of the extras elsewhere.
The checklist in one place
- Devices listed, with the operating system and version of each.
- Decided what the product must add beyond what those platforms already do.
- Confirmed supported versions on the vendor's system requirements page.
- Confirmed what the app does on each platform, including any footnotes.
- Read the renewal price, the renewal notice period and the cancellation route.
- Read the refund policy and noted its window.
- Checked the currency at checkout.
- Read the privacy policy passages on file submission and address checking.
- Looked at independent testing methodology rather than a quoted score.
- Screenshot of purchase terms saved, with the confirmation email.