# NBG Authenticator vs myDATAapp

The clearest difference is rating: myDATAapp at 2.5 against NBG Authenticator's 1.2. NBG Authenticator's advantage is ratings volume (12 vs 2). On price, review sentiment, update cadence and ads there is nothing between them.

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

myDATAapp holds the better App Store score, 2.5 against 1.2. That said, the two scores are not equally well evidenced: NBG Authenticator has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 1% of NBG Authenticator's written reviews are positive against 0% of myDATAapp's, so the app with the better star average is not the one people write more warmly about.

NBG Authenticator ships an update every 2 weeks, myDATAapp fortnightly. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | NBG Authenticator | myDATAapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (12 ratings)](https://appshunter.io/ios/app/nbg-authenticator/id1532016029/reviews) | **[2.5 (2 ratings)](https://appshunter.io/ios/app/mydataapp/id6738956327/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | **1.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | Free |
| Size | 38 MB | 166 MB |
| Requires iOS | 15.1 | **14.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [National Bank of Greece S.A.](https://appshunter.io/developer/342152892) | [INDEPENDENT AUTHORITY FOR PUBLIC REVENUE](https://appshunter.io/developer/1645044373) |

## What reviewers say

### NBG Authenticator

[App page](https://appshunter.io/ios/app/nbg-authenticator/id1532016029)

Securely approve your online purchases with your cards. This app provides enhanced payment authentication, aligning with the latest EU security regulations for a safer online shopping experience.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### myDATAapp

[App page](https://appshunter.io/ios/app/mydataapp/id6738956327)

This official mobile application allows professionals and businesses to digitally issue and transmit invoices to the myDATA platform. It provides a secure and efficient way to manage tax obligations and streamline daily operations.

**Highlights:** Digital invoice issuance, Invoice transmission to myDATA, Secure platform, Tax obligation management, Streamlined operations

**In-app purchases:** none


## Frequently asked questions

### Is NBG Authenticator free?

NBG Authenticator is free to download, with no in-app purchases.

### Is myDATAapp free?

myDATAapp is free to download, with no in-app purchases.

### Which has better reviews, NBG Authenticator or myDATAapp?

myDATAapp is rated higher. NBG Authenticator averages 1.2 out of 5 from 12 ratings, while myDATAapp averages 2.5 from 2 ratings.

### Do NBG Authenticator or myDATAapp have ads?

Neither NBG Authenticator nor myDATAapp shows ads.

### Which is updated more often, NBG Authenticator or myDATAapp?

NBG Authenticator ships an update every 2 weeks, and myDATAapp fortnightly. Most recently, NBG Authenticator was updated on June 11, 2026 and myDATAapp on September 19, 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.*