# Damco CTMS vs Rydstop

The clearest difference is update cadence: Rydstop at every 3 months against Damco CTMS's every 14 months. Damco CTMS's advantage is iOS requirement (11.0 vs 15.5). On price, ads, 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.

Damco CTMS ships an update every 14 months, Rydstop every 3 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Damco CTMS | Rydstop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Size | 18 MB | 157 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [A.P. MOLLER - MAERSK](https://appshunter.io/developer/672653767) | [Rydstop Inc.](https://appshunter.io/developer/1830212810) |

## What reviewers say

### Damco CTMS

[App page](https://appshunter.io/ios/app/damco-ctms/id1484317339)

**In-app purchases:** none


### Rydstop

[App page](https://appshunter.io/ios/app/rydstop/id6749366857)

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

**In-app purchases:** none


## Frequently asked questions

### Is Damco CTMS free?

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

### Is Rydstop free?

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

### Do Damco CTMS or Rydstop have ads?

Neither Damco CTMS nor Rydstop shows ads.

### Which is updated more often, Damco CTMS or Rydstop?

Damco CTMS ships an update every 14 months, and Rydstop every 3 months. Most recently, Damco CTMS was updated on November 8, 2026 and Rydstop 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.*