# NBG Authenticator — Approve online purchases

> Approve online card purchases securely using PIN or fingerprint authentication. (iPhone/iPad app by National Bank of Greece S.A..)

- Source: https://appshunter.io/ios/app/nbg-authenticator/id1532016029 (this page in markdown: same URL + `.md`)
- Developer: [National Bank of Greece S.A.](https://appshunter.io/developer/342152892)
- Category: Finance
- Price: Free
- Rating: 1.17/5 from 12 App Store ratings · 71 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: English
- Released: 2020-12-28
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nbg-authenticator/id1532016029/reviews.md

## What is NBG Authenticator?

Discover a new secure way to shop online using your NBG cards!





Now you can approve your online purchases with your cards using the new NBG Authenticator app.





NBG Authenticator provides enhanced payment authentication when you make online purchases, in line with the latest EU security regulations.





How it works:
• sign in to the app by activating your PIN or fingerprint
• register your NBG cards
• each time you buy something from an e-shop with your cards, you’ll automatically receive a push notification to login to the app and approve or decline the purchase

## Key features

- Approve online purchases
- Enhanced payment authentication
- PIN and fingerprint sign-in
- Register NBG cards
- Push notifications for approval

## Recent user reviews (10 of 71)

All indexed reviews: https://appshunter.io/ios/app/nbg-authenticator/id1532016029/reviews.md

### 1/5 — Don’t Work

*2025-07-07, version 1.40.4*

The doesn’t work! Actually doesn’t start! Uninstalled it and installed again but the problem remains ! Loading for ever!

### 3/5 — Problem showed up using this mobile app after getting the last update on iphone mini 12

*2025-07-06, version 1.40.4*

Since yesterday I cannot complete any payment bc I am constantly getting the error “Oops! Something went wrong! Please try again later” in greek language (but this does not matter)!

### 1/5 — Non working app

*2025-07-06, version 1.40.4*

The app is simply not working for days now. For such a critical app to be non working for several days and keep users blocked is unbelievable these days. One can understand how this bank operates and how it values its’ customers. And yes some customers have not NBG internet banking but only a Visa card that need only the NBG Authenticator. Such a disappointment. A good chance to apply on a new card on another bank.

### 1/5 — doesn’t work

*2025-07-05, version 1.40.4*

almost never works what am i even supposed to do

### 3/5 — Cant log in

*2025-07-05, version 1.40.4*

The apps is not working for 24hrs now

### 1/5 — Notifications issue

*2025-06-16, version 1.40.4*

While i have on all notifications, never get any, i have to log in to app to see the pwnding transaction, fix it, its 2025!

### 1/5 — Stopped working

*2025-05-04, version 1.40.4*

Message “something went wrong”. Cannot enter the app since reinstalled

### 1/5 — Problematic

*2025-05-04, version 1.40.4*

Doesn’t work any more

### 2/5 — Problems

*2025-05-02, version 1.40.4*

This Bank has a prepaid virtual card which has no authorization to deposit include in in the Authenticator. Secondly the app sometimes stops working so uninstall and install is something extremely inconvenient to do

### 1/5 — Crush

*2025-04-29, version 1.40.4*

The app has crushed and even open

## Frequently asked questions about NBG Authenticator

### What does the NBG Authenticator app do?

The NBG Authenticator app allows you to securely approve your online purchases made with your NBG cards. It provides enhanced payment authentication, ensuring a safer online shopping experience in compliance with EU security regulations.

### How do I approve an online purchase with this app?

After signing into the app with your PIN or fingerprint and registering your NBG cards, you will receive a push notification each time you make an online purchase. Simply log in to the app via the notification to approve or decline the transaction.

### Is the NBG Authenticator app free to use?

Yes, the NBG Authenticator app is free to download and use. There are no in-app purchases or advertisements associated with its core functionality of approving online card transactions.

### What are the security features of the NBG Authenticator app?

The app offers enhanced payment authentication for online purchases, adhering to the latest EU security regulations. You can sign in using a secure PIN or your fingerprint, adding an extra layer of protection to your transactions.

### Who is this app intended for?

This app is designed for individuals who use NBG cards for their online shopping. It's for anyone who wants a more secure and convenient method to authorize their e-commerce transactions.

## Version history (last 5 releases)

### 1.42.0 — 2026-03-30

Minor fixes for better user experience

### 1.41.0 — 2025-07-08

Minor fixes for better user experience

### 1.40.4 — 2025-02-18

This update includes performance improvements and bug fixes to enhance the customer experience

### 1.35.1 — 2023-06-26

Performance improvements and bug fixes

### 1.33 — 2021-08-05

Device PIN usage capability for e-commerce transaction approval

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| [NBG CY Mobile Banking](https://appshunter.io/ios/app/nbg-cy-mobile-banking/id6463858971) | — | Free | Finance |

## More apps by National Bank of Greece S.A.

- [NBG Mobile Banking](https://appshunter.io/ios/app/nbg-mobile-banking/id342152889)
- [Go For More](https://appshunter.io/ios/app/go-for-more/id953102087)
- [Next by NBG](https://appshunter.io/ios/app/next-by-nbg/id1058862350)
- [i-bank mPOS](https://appshunter.io/ios/app/i-bank-mpos/id1100652368)
- [i-bank pass](https://appshunter.io/ios/app/i-bank-pass/id1105809860)
- [i-bank POS](https://appshunter.io/ios/app/i-bank-pos/id1141407612)

All apps by National Bank of Greece S.A.: https://appshunter.io/developer/342152892

## Related topics

[nbg authenticator](https://appshunter.io/ios/topics/nbg-authenticator) · [nbg mobile banking](https://appshunter.io/ios/topics/nbg-mobile-banking)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*