Comparison

Westpac One vs Mercer Super

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

Head to head
About

Westpac One

This app provides enhanced security for online banking by generating one-time passcodes for multi-factor authentication. It allows linking multiple profiles and offers personalized sign-in options like biometrics or a PIN for convenient access on your mobile device.

Highlights
  • One-time passcode generation
  • Multi-factor authentication
  • Multiple profile linking
  • Biometric or PIN sign-in
  • Portable mobile security
Read full description

Secure your online banking with the Westpac One eToken app. Designed to be used in place of the RSA SecurID token, eToken securely authenticates your identity with a timed one-time passcode (OTP). Features: Enhanced security – OTPs for multi-factor authentication to provide an extra layer of security. Multiple profile linking – If you have more than one profile, you can link them all to one eToken. Personalised access – Set up your biometrics or a 6-digit PIN to safely and easily sign in to the app. Portable protection – eToken is conveniently with you on your mobile device when you need it. Activation of this app is by invitation only. If your organisation was not invited by Westpac to install the app, it may not work as intended. For information, contact your Administrator or call Corporate Help Desk on 1300 134 291 if you are in Australia, and (+61 2) 9155 7737 if you are overseas. This app requires iOS 16.0 or later. © Westpac Banking Corporation ABN 33 007 457 141 AFSL and Australian credit licence 233714. The Westpac Group, 275 Kent Street, Sydney, NSW 2000, AUSTRALIA.

About

Mercer Super

Manage your retirement savings and pension accounts with ease. Track your balance, adjust investments, access financial advice, and review insurance details. Securely manage linked accounts and beneficiaries for your financial future.

Highlights
  • View account balance and contributions
  • Manage investment options
  • Access e-Advice and wellness tools
  • Assess insurance needs
  • Nominate beneficiaries
  • Access financial statements
  • Switch between linked accounts
Features
Read full description

It’s now simpler than ever to manage your super or pension with the Mercer Super app. Dive into all the ways you can make your super and or pension count: View your account balance and latest contributions or payments Take charge of your investment options Access e-Advice and wellness tools to support your financial journey Assess your insurance needs and check your cover View and nominate your preferred beneficiaries Access your latest financial year statements Effortlessly switch between your linked accounts All with enhanced login security to keep your account information secure.

Screenshots

Westpac One4 screens
Mercer Super4 screens

Verdict

The call

The clearest difference is update cadence: Mercer Super at fortnightly against Westpac One's every 2 months. Westpac One's advantage is review sentiment (50% vs 38%). On price, ads, in-app purchases and monetization model 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

Westpac One ships an update every 2 months, Mercer Super fortnightly. The most recent releases landed on September 5, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 8 level
Westpac One versus Mercer Super: the parameters behind the verdict, then further details
ParameterWestpac OneMercer Super
PriceFreeFree
Rating—4.7 (39 ratings) — better
Positive reviews50.0% of reviews — better38.1% of reviews
Number of ratings—39 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size45 MB23 MB
Age rating17+4+
DeveloperWestpac Banking CorporationMercer

Customer experience

Westpac One

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Mercer Super

All ratings39 ratings
Positive92.3%
Neutral2.6%
Negative5.1%
Written reviews63 reviews
Positive38.1%
Neutral6.3%
Negative55.6%

In-app purchases

None

Westpac One

No in-app purchases

None

Mercer Super

No in-app purchases

Questions

Is Westpac One free?
Westpac One is free to download, with no in-app purchases.
Is Mercer Super free?
Mercer Super is free to download, with no in-app purchases.
Do Westpac One or Mercer Super have ads?
Neither Westpac One nor Mercer Super shows ads.
Which is updated more often, Westpac One or Mercer Super?
Westpac One ships an update every 2 months, and Mercer Super fortnightly. Most recently, Westpac One was updated on September 5, 2026 and Mercer Super on September 22, 2026.

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