# C4 Negotiation vs Der Einkaufsmanager

C4 Negotiation and Der Einkaufsmanager are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

C4 Negotiation ships an update every 15 months, Der Einkaufsmanager every 9 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | C4 Negotiation | Der Einkaufsmanager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 9 months** |
| Size | 35 MB | 182 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [C4 Center for Negotiation](https://appshunter.io/developer/1524755528) | [VNR AG](https://appshunter.io/developer/329844445) |

## What reviewers say

### C4 Negotiation

[App page](https://appshunter.io/ios/app/c4-negotiation/id1524755526)

**Features:** macOS Compatibility

**In-app purchases:** none


### Der Einkaufsmanager

[App page](https://appshunter.io/ios/app/der-einkaufsmanager/id6450256485)

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

**In-app purchases:** none


## Frequently asked questions

### Is C4 Negotiation free?

C4 Negotiation is free to download, with no in-app purchases.

### Is Der Einkaufsmanager free?

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

### Do C4 Negotiation or Der Einkaufsmanager have ads?

Neither C4 Negotiation nor Der Einkaufsmanager shows ads.

### Which is updated more often, C4 Negotiation or Der Einkaufsmanager?

C4 Negotiation ships an update every 15 months, and Der Einkaufsmanager every 9 months. Most recently, C4 Negotiation was updated on October 5, 2026 and Der Einkaufsmanager on October 6, 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.*