OLB appTAN vs Postbank BestSign
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OLB appTAN
Securely approve your online banking transactions directly from your smartphone or tablet. This app simplifies and enhances the security of your digital banking activities.
- Direct transaction approval
- Smartphone and tablet support
- Secure online banking
- Easy registration process
- Activation via mail
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Erhalten Sie Ihre TAN direkt und bequem auf ihr Smartphone oder Tablet. Mit unserer trusted App können Sie ihre Aufträge im Onlinebanking einfach, direkt und sicher freigeben. Wie funktioniert es? · Registrieren Sie sich für die OLB appTAN über den entsprechenden Menüpunkt im Onlinebanking · Per Post erhalten Sie den Aktivierungsbrief für die OLB appTAN · Laden Sie die App auf Ihr Smartphone. · Folgen Sie der Anleitung im Aktivierungsbrief.
Postbank BestSign
This app provides a secure and convenient way to authorize transactions in online banking. It focuses solely on the BestSign security procedure, allowing for quick setup and easy login using passwords or biometrics.
- Secure order authorization
- Dedicated BestSign procedure
- Password login
- Biometric login support
- Separate security app
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The Postbank BestSign app is a separate app for securely authorizing orders in online banking. The app only includes the BestSign security procedure. Create and activate BestSign once, then you are ready for authorizing. You can log into the BestSign app with your password or – if available – conveniently with your biometric data. This app is useful if you do not want to use the Postbank app, as you mainly carry out your online banking on the computer and only need a security procedure for order authorization. Tip: Try the Postbank app. Then you have your online banking and security procedures conveniently and securely in one place. DATA PRIVACY Protecting your data is our highest priority. Find more information in our data privacy policy.
Screenshots
Verdict
The clearest difference is review sentiment: Postbank BestSign at 69% against OLB appTAN's 18%. Postbank BestSign also leads on rating (4.7 vs 3.0) and ratings volume (1.1K vs 9). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Postbank BestSign holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Postbank BestSign has 1.1K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 18% of OLB appTAN's written reviews are positive against 69% of Postbank BestSign's.
OLB appTAN ships an update every 9 months, Postbank BestSign every 2 months. Both last shipped on November 6, 2026.
| Parameter | OLB appTAN | Postbank BestSign |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (9 ratings) | 4.7 (1.1K ratings) — better |
| Positive reviews | 17.6% of reviews | 68.5% of reviews — better |
| Number of ratings | 9 | 1.1K — better |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Oldenburgische Landesbank AG | Postbank - eine Niederlassung der DB Privat- und Firmenkundenbank AG |
Customer experience
OLB appTAN
Postbank BestSign
Bugs and requests
OLB appTAN
Not enough reviews yet to summarise bugs or requests.
Postbank BestSign
Reported bugs
3 issues- QR code activation issues
- Frequent login failures and account access denials
- Crashes on app startup
Requested features
2 requests- Multi-language support
- Improved reliability and stability
In-app purchases
OLB appTAN
No in-app purchases
Postbank BestSign
No in-app purchases
Questions
Is OLB appTAN free?
Is Postbank BestSign free?
Which has better reviews, OLB appTAN or Postbank BestSign?
Do OLB appTAN or Postbank BestSign have ads?
Which is updated more often, OLB appTAN or Postbank BestSign?
Other comparisons
