Hi everyone. I've been tasked with helping our team move away from VPNs for some internal web tools, and I'm trying to learn the lay of the land. We're primarily an Office 365/Azure AD shop, so my first instinct was to look at Azure AD Application Proxy.
But in my research, I keep seeing Cloudflare Access come up as a major alternative. I'm trying to do a fair comparison specifically for an environment like ours.
From what I've gathered so far, Azure AD App Proxy feels like the "native" path. Since our users and groups are already in Azure AD, the identity part seems straightforward. However, I've read about some limitations in the documentation, like needing a connector installed on a Windows server in our network and potential performance considerations.
Cloudflare Access, on the other hand, seems to sit in front of everything and use our Azure AD as an identity provider. The promise of not needing to maintain any on-premise connectors is very appealing. My main questions are about the practical differences in daily use.
Has anyone here run both, or migrated from one to the other? I'm particularly curious about:
* The end-user experience for accessing something like an internal HR portal or a development tool. Is one noticeably simpler or faster?
* Administrative overhead for setting up and maintaining each application. How granular can access policies get?
* Cost at scale. Azure AD App Proxy is bundled with certain licenses, while Cloudflare Access is a separate cost. How does that math work out for, say, a few hundred users and a dozen internal apps?
I'm still piecing this together, so any insights from teams who've made this choice would be incredibly helpful.
I'm Emma, and I handle customer success for a team of about 200 in SaaS. We went through this exact decision last year when securing our internal admin panels and a legacy HR app, and we run Cloudflare Access in production with Azure AD as our IdP.
* **Deployment & Maintenance Effort**: Azure AD App Proxy requires at least one Windows Server VM on-premise to run the connector, which adds patching and HA overhead. Cloudflare Access is agentless; you just add a DNS record and configure the integration in the Cloudflare dashboard. We had our first app live in under an hour.
* **True Cost for O365 Shops**: Azure AD App Proxy licensing is included with certain Azure AD Premium P1/P2 plans, so the incremental cost might be $0 if you already have those licenses. Cloudflare Access is part of their Zero Trust platform, which starts at $7/user/month when billed annually, so you're looking at a new, direct cost.
* **Performance & User Experience**: The App Proxy connector can become a bottleneck for high-latency apps or large file transfers, as all traffic tunnels through it. Cloudflare's global network routes users to the nearest data center, and for our web tools, the performance feels indistinguishable from being on the internal network.
* **Application Protocol Support**: Azure AD App Proxy is primarily for HTTP/HTTPS web apps. If you need to provide access to non-web TCP/UDP services (like RDP or SSH), it won't work. Cloudflare Access is also for web apps, but Cloudflare's broader Zero Trust suite includes a separate tunnel product (Cloudflare Tunnel) for other protocols, which is a more complex setup.
I'd recommend Cloudflare Access if your primary goal is a modern, performant experience for internal web tools and you're okay with the per-user cost. I'd stick with Azure AD App Proxy if you're strictly budget-constrained on new software and your apps are simple, low-traffic internal sites. To make the call clean, tell us how many users need access and if any of your tools require non-web protocols like RDP.
Good call on focusing on the end user experience, that's often the deciding factor.
The biggest difference I've seen is how sessions work. With Azure App Proxy, users get the full Microsoft SSO experience, which can be really seamless if they're already signed into O365 in their browser. But with Cloudflare Access, you're basically setting up a reverse proxy that checks with Azure AD for auth. Sometimes that can mean a fresh login prompt, though it's usually pretty smooth.
Performance is the other thing. App Proxy traffic routes through the Microsoft network, but you still have the on-prem connector hop. Cloudflare Access uses their global edge network, which can feel faster for users spread out geographically, especially for lighter web tools.
Always optimizing.
You're spot on about session behavior being a key UX difference. That "fresh login prompt" with Cloudflare Access can indeed pop up, but it's largely dependent on your Azure AD session lifetime policies and whether users hit the "keep me signed in" option. You can tune that a bit.
On performance, the edge network advantage is real, but it's worth remembering App Proxy can use multiple connectors in different regions for a sort of hybrid approach. Still, Cloudflare's network is hard to match for global teams. For our community, the admin overhead of maintaining those connector VMs is often the bigger turn-off than raw speed.
Stay constructive
The connector overhead is the killer. You don't just deploy it, you monitor it. HA pairs, log reviews, Windows updates.
Tuning session lifetime for Cloudflare helps, but you're fighting Azure AD's default token refresh. If your users close browsers daily, they'll see that prompt.