Dynu vs ACM for locks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dynu
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.
- Dynamic DNS service management
- Automatic IP address detection
- IPv4 and IPv6 updates
- Domain name mapping
- Group support
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The Dynu iOS App allows users to manage their dynamic DNS service as well as other services with an easy-to-use mobile application. The IP Update Client utility in the app detects any changes to your IP Address and reports it to Dynu DNS servers so that your domain name keeps mapped to the dynamic IP address. This application supports IPv4 and IPv6 updates as well as group and is an essential part of the dynamic DNS service.
ACM for locks
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Access Code Manager(ACM) is a mobile phone App to provide the code management functions for ACM supported electronic lock, working with ACM App some code accessing electric lock can be upgraded as smart lock with more modern smart phone APP features. Main functions: 1. Locks management of add/edit/delete 2. Lock code log management 3. Lock OTC feature operations 4. Lock TCC6 feature operations 5. Lock TCC10 feature operations 6. Share unlocking code to users via SMS, email, App etc. Supported locks: Electronic lock which firmware is upgraded to support ACM OTC, TCC6 or TCC10, such as lock model NL02P, WT100, WT200 and DA02 etc.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Dynu | ACM for locks |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| Update frequency | Monthly — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 10 MB |
| Age rating | 4+ | 12+ |
| Developer | Dynu Systems, Inc. | WOBBI TECHNOLOGY LIMITED |
In-app purchases
Dynu
No in-app purchases
ACM for locks
No in-app purchases
