# DOC%ZINS vs cpx Kunde

The clearest difference is price: cpx Kunde at Free against DOC%ZINS's $11.99. cpx Kunde also leads on iOS requirement (12 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

cpx Kunde is free to download; DOC%ZINS costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DOC%ZINS ships an update every 5 months, cpx Kunde every 3 months. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DOC%ZINS | cpx Kunde |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 24 MB | 49 MB |
| Requires iOS | 15.0 | **12** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FinTeachWorld GmbH & Co. KG](https://appshunter.io/developer/1717763542) | [JCP Informationssysteme GmbH](https://appshunter.io/developer/638684779) |

## What reviewers say

### DOC%ZINS

[App page](https://appshunter.io/ios/app/doczins/id1107519108)

This app provides financial professionals with a powerful digital calculator for fast, accurate financial calculations. It offers various tools for interest rates, repayment, cash flow, savings models, and investment analysis, enabling users to confidently answer financial questions in real-time.

**Highlights:** Nominal and effective interest rate calculations, Dynamic and repayment calculations, Total cost and interest charge overview, Three-stage cash flow analysis, Dynamic savings and pension models, Multiple financing options, Investment and net present value calculations

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

**In-app purchases:** none


### cpx Kunde

[App page](https://appshunter.io/ios/app/cpx-kunde/id1224503784)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DOC%ZINS free?

DOC%ZINS costs $11.99, with no in-app purchases.

### Is cpx Kunde free?

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

### Do DOC%ZINS or cpx Kunde have ads?

Neither DOC%ZINS nor cpx Kunde shows ads.

### Which is updated more often, DOC%ZINS or cpx Kunde?

DOC%ZINS ships an update every 5 months, and cpx Kunde every 3 months. Most recently, DOC%ZINS was updated on October 26, 2026 and cpx Kunde on October 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.*