Head-to-head · Dynamic DNS Services
Dynu Dynamic DNS vs DuckDNS
Dynu Dynamic DNS leads on 0 checks, DuckDNS on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreDynu Dynamic DNS · 9.4/10
- Free planboth
Dynu Dynamic DNS scores higher on our rubric for dynamic dns services: 9.4 against 8.5 out of 10; our editors rank them #1 and #7.
Dynu Dynamic DNS is the better fit for free DDNS with many hosts and clients. DuckDNS is the better fit for simple free DDNS for home networks.
- Dynu Dynamic DNS fits best
Free DDNS with many hosts and clients
- DuckDNS fits best
Simple free DDNS for home networks
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Side by side
| Feature | Dynu Dynamic DNS 9.4/10 Visit ↗ | DuckDNS 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.5 |
| Ranking | #1 in Dynamic DNS Services | #7 in Dynamic DNS Services |
| Best for | Free DDNS with many hosts and clients | Simple free DDNS for home networks |
| Pricing model | Free plan + paid | Free |
| Starting price | $9.99/yr | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Desktop, Mobile, Browser extension | Cloud |
| Platforms | Web, Windows, macOS, Linux, iOS, Android, Chrome extension | Web, Windows, macOS, Linux, iOS, Android |
| Support | Email, Phone, Tickets, Community, Docs | Community, Docs |
| Integrations | 6 integrations | 9 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business |
| Features Dynu Dynamic DNS 5/5 · DuckDNS 5/5 | ||
| IPv6 support | ✓ | ✓ |
| Custom domains | ✓ | ✓ |
| Router support | ✓ | ✓ |
| API access | ✓ | ✓ |
| Wildcard records | ✓ | ✓ |
| Specs | ||
| Hostname limit | 200 hostnames | Not checked yet |
| Update interval | 2 minutes | Not checked yet |
| Our review | ||
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| Our verdict | Dynu Dynamic DNS maps hostnames to changing IPv4 or IPv6 addresses for home servers, remote access, webcams, game servers, and other internet-connected devices. It suits users who need free dynamic DNS with multiple hostnames,… Read the review → |
DuckDNS is a free dynamic DNS service for individuals, home networks, self-hosted services, and small deployments. It maps subdomains under duckdns.org to selected IP addresses, helping users reach changing network endpoints through a… Read the review → |
Strengths and trade-offs
Dynu Dynamic DNS — where it wins
- Free service with up to 200 hostnames and unlimited DNS queries
- Supports IPv4, IPv6, custom domains, wildcard records, and broad DNS types
- Clients and integrations cover desktop, mobile, browsers, routers, and firewalls
Where it doesn't
- DNSSEC, logging, backup, and restore require a paid membership
- Advanced API and sub-accounts are limited to the Corporate tier
- The free plan does not include priority or dedicated support
DuckDNS — where it wins
- Free dynamic DNS mapping for duckdns.org subdomains
- Supports IPv4, manually supplied IPv6, HTTP/HTTPS, and TXT updates
- Works with OpenWrt, DD-WRT, pfSense, Synology, and DynDNS clients
Where it doesn't
- IPv6 addresses must be supplied manually
- Primary addressing uses duckdns.org subdomains
- No paid tiers for expanded service options
- Dynu Dynamic DNS9.4/10 · Free plan
A feature-rich free DDNS service with broad client, DNS, and API support.
Visit DynuFull verdict → - DuckDNS8.5/10 · Free plan
A straightforward free DDNS service with router support and practical update APIs.
Visit DuckDNSFull verdict →
More comparisons
- Dynu Dynamic DNS vs ApertoDNS
- Dynu Dynamic DNS vs DynIP
- Dynu Dynamic DNS vs No-IP Dynamic DNS
- Dynu Dynamic DNS vs DNS Exit
- Dynu Dynamic DNS vs DDNSS
- Dynu Dynamic DNS vs ddclient
- ApertoDNS vs DuckDNS
- DynIP vs DuckDNS
All dynamic DNS services comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update