# Westpac One vs Mercer Super

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

## The numbers

| Metric | Westpac One | Mercer Super |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (39 ratings)](https://appshunter.io/ios/app/mercer-super/id6680185694/reviews)** |
| Number of ratings | — | **39** |
| Positive reviews | **50.0% of reviews** | 38.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 45 MB | 23 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Westpac Banking Corporation](https://appshunter.io/developer/299111814) | [Mercer](https://appshunter.io/developer/510999051) |

## What reviewers say

### Westpac One

[App page](https://appshunter.io/ios/app/westpac-one/id6504743354)

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

**In-app purchases:** none


### Mercer Super

[App page](https://appshunter.io/ios/app/mercer-super/id6680185694)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*