# CS vs DMARCFlow

The clearest difference is ads: CS at none against DMARCFlow's shown. CS also leads on iOS requirement (16.6 vs 18.6). DMARCFlow's advantage is update cadence (monthly vs every 2 months). 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.

CS ships an update every 2 months, DMARCFlow monthly. The most recent releases landed on September 11, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | CS | DMARCFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Size | 3 MB | 4 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Computer Steiner GmbH](https://appshunter.io/developer/931448911) | [Ucar Solutions UG (haftungsbeschrankt)](https://appshunter.io/developer/1817033591) |

## What reviewers say

### CS

[App page](https://appshunter.io/ios/app/cs-bus/id931448912)

**Features:** Vision Pro support

**In-app purchases:** none


### DMARCFlow

[App page](https://appshunter.io/ios/app/dmarcflow/id6759402400)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CS free?

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

### Is DMARCFlow free?

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

### Do CS or DMARCFlow have ads?

DMARCFlow shows ads; CS does not.

### Which is updated more often, CS or DMARCFlow?

CS ships an update every 2 months, and DMARCFlow monthly. Most recently, CS was updated on September 11, 2026 and DMARCFlow on September 13, 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.*