# BW pushTAN vs KaratExchange

The clearest difference is ads: BW pushTAN at none against KaratExchange's shown. KaratExchange's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (13.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

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

BW pushTAN ships an update every 2 months, KaratExchange every 4 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BW pushTAN | KaratExchange |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/bw-pushtan/id1438233026/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 136 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Star Finanz GmbH](https://appshunter.io/developer/320596875) | [Hasan Can Cesur](https://appshunter.io/developer/1894684730) |

## What reviewers say

### BW pushTAN

[App page](https://appshunter.io/ios/app/bw-pushtan/id1438233026)

Securely authorize online banking transactions from your mobile device. This app provides a convenient and safe way to approve payments without needing a separate hardware token. It offers biometric login and encrypted data transfer for peace of mind.

**Highlights:** Secure transaction authorization, Biometric login (Touch ID/Face ID), Mobile banking on any device, Encrypted data transfer, Inkognito mode for hiding amounts, Supports all payment types

**In-app purchases:** none


### KaratExchange

[App page](https://appshunter.io/ios/app/karatexchange/id6762562250)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BW pushTAN free?

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

### Is KaratExchange free?

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

### Do BW pushTAN or KaratExchange have ads?

KaratExchange shows ads; BW pushTAN does not.

### Which is updated more often, BW pushTAN or KaratExchange?

BW pushTAN ships an update every 2 months, and KaratExchange every 4 weeks. Most recently, BW pushTAN was updated on November 6, 2026 and KaratExchange on November 5, 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.*