Westpac One NZ Mobile Banking

3.2
6.84K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Westpac One is online banking that’s easier, faster and smarter than ever before.

With this app you can do so much more of your banking, no matter where you are. Do the usual stuff like transfer money and pay people, but also do the fancy stuff like:

- apply for loans and credit cards
- block your credit or debit card if you lose it
- pay someone in Australia
- open an account
- open and view term deposits
- and much more.

There’s also a smart Timeline feature – where you can view, search and filter all your transactions from all your accounts in the one place.

Plus get loads of other cool features as well, like:

- log in with a PIN for faster access to Westpac One
- check the balance of selected accounts and transfer between those accounts without having to log in
- monitor your monthly spending patterns with our Spending Meter.

All backed up by Westpac’s world-class online security, Online Guardian.

Get started now
If you’re already a Westpac One online banking customer, simply download the app and start banking straight away.

If you are a Westpac customer, but not registered for online banking, call us on 0800 400 600 (Weekdays 7 am – 8 pm and Saturday & Sunday 8 am – 5 pm) or visit your local branch to register.

The legalese
By downloading and completing the set-up of the Westpac One smartphone app you agree to the Westpac One Online Banking Apps Terms and Conditions, which incorporate Westpac’s General Terms and Conditions including the Westpac Electronic Banking Services Terms and Conditions (located at: http://www.westpac.co.nz/who-we-are/about-westpac-new-zealand/westpac-legal-information/#tab3), and the Westpac Website Terms of Use (located at: http://www.westpac.co.nz/who-we-are/about-westpac-new-zealand/westpac-legal-information/#tab2)

Other things you should know
- This app is only available to Westpac New Zealand Limited (“Westpac”) customers who are registered users of the Westpac One online banking service and who have downloaded this app.
- We recommend you always adhere to manufacturer's software and support requirements to ensure your devices are covered by the latest software and security updates. If you're connecting via a wifi network,, you must always use a trusted network.
- You must set up a PIN or password to lock your smartphone and always have them activated when the device is left idle or unattended.
- If you lose your device or it is stolen, please contact Westpac immediately on 0800 400 600.
- There are no charges for downloading the Westpac One smartphone app but internet data charges may be incurred through your mobile service provider.
- All information submitted by you during the set-up and use of the Westpac One smartphone app will be retained by Westpac and used in accordance with the privacy provisions in Westpac New Zealand's General Terms and Conditions.
- We reserve the right to modify, suspend or withdraw the operation of the Westpac One online banking platform and/or this app at any time. Access is subject to availability and maintenance.
- The information on this page is presented subject to the Westpac One Online Banking Apps Terms and Conditions, which incorporate Westpac’s General Terms and Conditions (including the Westpac Electronic Banking Service Terms and Conditions) and the Westpac Website Terms of Use, any other terms and conditions Westpac New Zealand may impose and is subject to change without notification.

© 2024 Westpac New Zealand Limited
Updated on
Nov 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location and App activity
This app may collect these data types
Personal info, Financial info and 4 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.0
6.51K reviews
Rod Schubert
November 14, 2025
Constantly cannot login with resetting password not working. Along with only handling 9 accounts makes this the worst app on the nz market. Disappointing for a bank that has solid products to have an app that seems amateur and underdeveloped.
Did you find this helpful?
Westpac New Zealand Limited
November 14, 2025
Hi Rod, thank you for your feedback and we are truly sorry for your experience. Please feel free to email us and we will be happy to assist further customer_support@westpac.co.nz. ^TS
Josh F
September 2, 2025
Thankful that I left Westpac for another bank. I kept my credit card as the deal was better. Their app is largely unusable. I try to open my credit card balance or make a transaction and the screen is blank and doesn't load. I then have to log in to the website banking portal on my phone which takes much longer and very clunky to use.
4 people found this review helpful
Did you find this helpful?
Westpac New Zealand Limited
September 2, 2025
Hi Josh , We're sorry to hear the issue you having and the frustration caused. Could you please uninstall the app and try again. Please reach out to us at customer_support@westpac.co.nz if the issue persists. ^RA
Stephen Mitchell
October 27, 2025
it's not working for me password pin code doesn't dayd something went wrong , it crashes if i tap forgot pin , sign in as guest crashes the app I'm sorry but I'm not happy about it, yesterday after i update it is when it doesn't work
Did you find this helpful?
Westpac New Zealand Limited
October 27, 2025
Hi Stephen, we're sorry to hear about the issues. Can we ask that you please call us on 0800 400 600 or email us at customer_support@westpac.co.nz to assist you further ^LL

What’s new

Continuing to enhance your Westpac Digital Card experience:  Access a digital version of your new credit card via the new cards hub in Westpac One app, complete with a dynamic security code that refreshes after 24 hours, helping you to start spending straight away with extra peace of mind. 
 
We value your feedback, tell us what you think of these updates by sending feedback via the app.  Your feedback helps us continue to make Westpac One even better.