# Dynu vs ACM for locks

The clearest difference is ads: Dynu at none against ACM for locks's shown. Dynu also leads on update cadence (monthly vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Dynu ships an update monthly, ACM for locks every 6 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Dynu | ACM for locks |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 10 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Dynu Systems, Inc.](https://appshunter.io/developer/1481158786) | [WOBBI TECHNOLOGY LIMITED](https://appshunter.io/developer/1667483448) |

## What reviewers say

### Dynu

[App page](https://appshunter.io/ios/app/dynu/id1481158787)

Manage your dynamic DNS service and other account features on the go. This utility automatically detects IP address changes and updates your domain name mapping. It supports both IPv4 and IPv6 updates, making it essential for maintaining your dynamic DNS service.

**Highlights:** Dynamic DNS service management, Automatic IP address detection, IPv4 and IPv6 updates, Domain name mapping, Group support

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

**In-app purchases:** none


### ACM for locks

[App page](https://appshunter.io/ios/app/acm-for-locks/id6446193435)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dynu free?

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

### Is ACM for locks free?

ACM for locks is free to download, with no in-app purchases.

### Do Dynu or ACM for locks have ads?

ACM for locks shows ads; Dynu does not.

### Which is updated more often, Dynu or ACM for locks?

Dynu ships an update monthly, and ACM for locks every 6 months. Most recently, Dynu was updated on November 3, 2026 and ACM for locks on October 27, 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.*