Four free tools. Four versions of the same ceiling.
Every camera vendor ships a free desktop tool. They share a pattern: Windows only, single-vendor lock-in, no real cloud, and a hard channel cap that kicks in around the point the installer is starting to make decent revenue.
iVMS-4200
Hikvision
Free ceiling: 64 simultaneous channels · 256 devices · ~1,024 total cameras
Windows / macOS only. Hikvision-only. No real cloud (Hik-Connect handles remote viewing only). Multi-site requires manual port-forwarding. Reddit and forum threads are dominated by router / NAT / playback errors after every network change.
DSS Express
Dahua
Free ceiling: 64 channels free · 256/512 via paid licences
Windows only. Dahua-only. Integrator quote: "slow and not stable". Documentation gaps. Multi-site is the same VPN / port-forward dance. NDAA Section 889 restricts US federal work.
EZStation
Uniview
Free ceiling: 64 channels free
Uniview-only. Basic UX. No central cloud, no AI analytics, no real multi-site management. Once a customer adds a different brand, EZStation is finished.
Axxon Next
AxxonSoft (Ireland, formerly Russia)
Free ceiling: 4 channels free
AxxonSoft restructured to Ireland in March 2022 following the Ukraine invasion. Historical Russian origin still triggers procurement-policy scrutiny in some UK / EU / AU / US accounts and on federal work. The 4-channel free tier is too small for any real B2B install.
The free tool is the start. TetherX is the business.
The customer paid you once. Then expected support forever.
That is the trap with iVMS / DSS / EZStation. Install fee at day one, then years of unpaid support every time their router changes IP, the Windows machine slows down, or they want to watch from outside the office.
TetherX is an annual platform subscription with optional per-camera services, billed by you to your customer. Every site is a recurring revenue line. Every call to add a camera adds to the channel count or a per-camera service - more revenue, not more unpaid support. The customer gets cloud, multi-site and AI search. You get a real business.
See the partner programme
Questions before you swap iVMS, DSS or EZStation
See TetherX against another VMS
Researching options? Read the side-by-side for each VMS the channel asks about most.
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Read the full FAQTry TetherX free for 30 days
Use it next to your existing iVMS / DSS / EZStation install. If TetherX does not pay back in saved site visits and new RMR within the trial, walk away. Extensions on request.
Start Free TrialAbout this comparison. Information about other vendors is drawn from their public product pages, datasheets, integrator forums (Reddit, vendor user groups), public CVE databases (NVD, CISA) and customer conversations - accurate to the best of our knowledge as of 21 May 2026. Pricing, features, security posture and policies change. A vendor may have shipped a fix, dropped a price, added a region or changed an architecture since this page was last reviewed.
If you believe anything here is inaccurate or out of date, please contact us and we will review and correct it. Trademarks and product names belong to their respective owners and are referenced here for identification only.