A client I downloaded from GitHub won't open — it says 'cannot verify the developer / unidentified developer.' What now?

That's macOS Gatekeeper blocking an app not notarized by Apple — the client isn't broken. The correct way to allow it when downloaded from an official source is: right-click (or Control-click) the app icon → choose Open → click Open again in the dialog. If newer macOS still blocks the right-click, go to System Settings → Privacy & Security, find the blocked entry near the bottom, and click 'Open Anyway.' Only do this for installers you've confirmed come from official GitHub / official sites; don't allow packages of unknown origin. Also make sure you picked the right chip build (Apple menu → About This Mac to see Apple Silicon vs Intel) — the wrong architecture also won't open.

Will US sanctions stop me from even downloading a client on a Mac?

It can get in the way, but there's usually a path. Because of OFAC sanctions, GitHub has restricted Iranian access to paid features and private repos since 2019 and tightened further after the 2026 escalation, and npm and cloud platforms IP-restrict Iranian users, with about 20% of the world's top domains geo-blocked for Iranian IPs. However, GitHub's public-repo Releases files are usually still downloadable anonymously (what's restricted is mainly login, push, Actions, Copilot — account features), so getting the Hiddify / sing-box / v2rayU installers themselves is mostly still doable. The honest move is: download the installers while you still have any channel to the internet, rather than waiting until you're fully cut off.

Home › Guides › How to Install and Use a VPN/VLESS Client on a Mac (macOS) in Iran — an Honest Explanation (Like Windows, a Mac Is the Most Open Platform: Unlike iPhone It Isn't App-Store-Locked, Any Client Runs Straight from Official GitHub and Bypasses the Removal, System-Level TUN (utun) Captures the Whole Machine; but Iran Has an Extra Layer Russia Doesn't — US Sanctions Geo-block by IP So Even Downloading the Client Can Be Blocked, and macOS Adds Two Quirks: Gatekeeper's 'Unidentified Developer' and Picking the Right Chip Build (Apple Silicon/Intel) — While the Real Battle Is Still Whether Your Protocol Survives Iran's DPI) and a More Reliable Approach (VLESS+Reality)

How to Install and Use a VPN/VLESS Client on a Mac (macOS) in Iran — an Honest Explanation (Like Windows, a Mac Is the Most Open Platform: Unlike iPhone It Isn't App-Store-Locked, Any Client Runs Straight from Official GitHub and Bypasses the Removal, System-Level TUN (utun) Captures the Whole Machine; but Iran Has an Extra Layer Russia Doesn't — US Sanctions Geo-block by IP So Even Downloading the Client Can Be Blocked, and macOS Adds Two Quirks: Gatekeeper's 'Unidentified Developer' and Picking the Right Chip Build (Apple Silicon/Intel) — While the Real Battle Is Still Whether Your Protocol Survives Iran's DPI) and a More Reliable Approach (VLESS+Reality)

Updated 2026-07-05

Diagram: installing a VPN/VLESS client on a Mac in Iran — like Windows, macOS is the most open platform: unlike iPhone, a Mac isn't App-Store-locked, so Hiddify / sing-box / v2rayU / nekoray run straight from official GitHub, bypassing the removal, with system-level TUN (utun) capturing the whole machine's traffic. But Iran has an extra layer Russia doesn't: US sanctions (OFAC) IP-restrict GitHub / npm / cloud platforms and geo-block ~20% of top domains for Iranian IPs, so even 'downloading the client' on desktop can be blocked (download it while you still have a channel; public-repo release files are usually still downloadable anonymously). macOS adds two quirks: Gatekeeper blocks 'unidentified developer' apps (right-click Open), and you pick the build by chip (Apple Silicon arm64 / Intel x86_64). The real battle is still the protocol: Iran's DPI now cuts OpenVPN / WireGuard / bare protocols within hours, and VLESS+Reality (disguised as ordinary HTTPS to a real major site) is most resilient — but not a get-out-of-jail card: IRGFW has graylisted Reality IPs since April 2024, and a heavy-traffic IP can be blocked within ~48h. A stable non-Iranian exit IP beats DPI and restores sanctions-geo-blocked sites, but a tunnel can't revive a sanctions-deactivated account or payment.

Bottom line first: in Iran, like Windows a Mac is the most open platform — the key difference is a Mac isn't App-Store-locked

If you're on a Mac in Iran, the good news is: like Windows, macOS is the most open platform. The key difference from iPhone is that a Mac isn't App-Store-locked. The iPhone deadlock in Iran is that the whole App Store is sanctions-blocked by IP and Apple doesn't list VPN apps for Iran, so you hit the 'need a VPN to reach the App Store but the App Store to get a VPN' catch-22. But on a Mac you don't go through the store at all: Apple did pull VPN apps from the Iranian (and Russian) App Store under sanctions pressure, yet macOS lets you run clients downloaded straight from official GitHub (Hiddify / sing-box / v2rayU / nekoray), bypassing the removal in one step — that's the Mac's key advantage over the iPhone. Like Windows, the client can use system-level TUN (utun) to capture the whole machine's traffic (games, desktop Telegram, Safari, any desktop app), without the friction of phone sideloading. But to be honest: on a Mac you have two fights — first get the client (around Iran's unique sanctions geo-blocking), then make your protocol survive Iran's DPI; plus macOS has two extra quirks Windows doesn't (Gatekeeper and picking the chip build).

The Iran-specific layer: US sanctions geo-block by IP — even downloading the client can be blocked

This is where an Iranian desktop user differs most from a Russian Mac user. Because of US sanctions (OFAC), a set of American companies IP-restrict Iranian users: GitHub (restricting Iranian access to paid features and private repos since 2019, tightened further after the 2026 escalation), npm and cloud platforms are all in that set; per public counts, roughly 20% of the world's ~1 million top domains are sanctions-geo-blocked for Iranian IPs. That means on a Mac even the 'get the client downloaded' step can be blocked. The honest workaround: while you still have any channel to the internet, download the Hiddify / sing-box / v2rayU installers first; GitHub's public-repo Releases files are usually still downloadable anonymously (what's restricted is mainly login, push, Actions, Copilot — account features), so getting the client itself is mostly still doable. Conclusion: an Iranian desktop user's first fight is getting a clean client around sanctions geo-blocking — a layer Russian users don't have at all.

Two macOS-specific quirks: Gatekeeper's 'unidentified developer' + picking the chip build (Apple Silicon / Intel)

Once you've downloaded the client, macOS differs from Windows in two ways worth covering up front. First, Gatekeeper: these clients are mostly open-source apps not notarized by Apple, so double-clicking pops 'cannot be opened because the developer cannot be verified / unidentified developer.' The correct way to allow it when downloaded from an official source is — right-click (or Control-click) the app icon → choose Open → confirm Open; on newer macOS, if right-click is still blocked, go to System Settings → Privacy & Security and click 'Open Anyway' on the blocked entry near the bottom. Don't allow it if the source is uncertain. Second, pick the build by chip: Macs from 2020 on are mostly Apple Silicon (M1/M2/M3/M4, arm64 architecture), earlier ones are Intel (x86_64); download the package for the matching architecture (many projects ship arm64 and x64/amd64, or a single 'universal' build). To check your chip: click the Apple menu → About This Mac and read the 'Chip / Processor' line. Picking the wrong architecture means it won't install or won't run. Both quirks are macOS-specific and absent on Windows.

The real battle is still the protocol: Iran's DPI cuts bare protocols, VLESS+Reality is most resilient (but not immune)

Once the client is installed and allowed, what actually decides whether you connect is still 'which protocol.' Iran's deep packet inspection (DPI) is quite strong by 2026: OpenVPN has been blocked for years, and WireGuard is now reliably identified — a WireGuard connection from a fresh server is often identified within hours, and layering obfuscation buys a little time but the obfuscation layers themselves develop fingerprints that get catalogued. So bare, well-known ordinary protocols (including the plain VMess/SS most free VPNs use) are cut first. VLESS is a lean transport protocol and Reality is its TLS camouflage layer: at the packet level it looks like ordinary HTTPS to a real, major site, with almost no distinctive fingerprint for inspection systems to match, which is why it's currently the most resilient in Iran; and a stable non-Iranian exit IP also restores that ~20% of sanctions-geo-blocked sites. But to be clear and not give you a false sense of immunity: Iran's IRGFW has graylisted Reality IPs since April 2024; operators report that an IP carrying roughly 100 GB of Reality traffic tends to be blocked by Irancell within about 48 hours. So the point isn't the 'protocol name,' it's how the node is run: a dedicated, low-profile, non-overloaded, rotatable node lasts longer. For detailed client config see 'sing-box setup (Persian)'; for how the protocol works see 'What is VLESS Reality'.

How to do it: download a client + pass Gatekeeper + pick the right chip build + import the subscription + enable TUN (utun) global

Download the client first: from the project's official GitHub Releases / official site get the macOS build of Hiddify (cross-platform, easy to start) / sing-box / v2rayU / nekoray — download it while you still have connectivity; if a source is sanctions-geo-blocked, grab it via any temporary channel first (public-repo release files are usually still downloadable anonymously).
Pick the right chip build: click the Apple menu → About This Mac to see whether it's Apple Silicon (arm64) or Intel (x86_64), and download the matching architecture (or a universal build).
Get the installer only from official GitHub / official sites and verify the source; don't download from aggregator sites, Telegram forwards, or search ads (they may be laced with malicious code).
Pass Gatekeeper: if first launch says 'cannot verify the developer / unidentified developer,' right-click the app → Open → confirm Open; if still blocked, go to System Settings → Privacy & Security → 'Open Anyway.' Don't allow it if the source is uncertain.
Copy your subscription link from the dashboard (prefer VLESS+Reality nodes for the Iranian environment) and 'import subscription from clipboard' in the client.
Pick a dedicated, low-latency, non-Iranian node and connect, turn on system-level TUN (utun) global mode so the whole machine's traffic goes through the tunnel (not just the browser); because IRGFW graylists Reality IPs, keep backup nodes ready and switch the moment a node slows or won't connect (a dedicated / rotatable node lasts far longer than a congested public one).

Honest expectations

Like Windows, a Mac is the most open platform in Iran: the key difference is a Mac isn't App-Store-locked — Apple pulled VPN apps from the Iranian App Store, but on a Mac you can run clients downloaded straight from official GitHub, bypassing the removal, with system-level TUN (utun) capturing the whole machine.
The Iran-specific layer: US sanctions IP-restrict GitHub / npm / cloud platforms and geo-block ~20% of top domains for Iranian IPs, so on desktop even 'downloading the client' can be blocked — download it while you still have a channel; public-repo release files are usually still downloadable anonymously.
Two macOS-specific quirks: Gatekeeper blocks 'unidentified developer' apps (right-click Open / Privacy & Security → Open Anyway); pick the build by chip (Apple Silicon arm64 / Intel x86_64 — Apple menu → About This Mac to check).
The real battle is the protocol: Iran's DPI now cuts OpenVPN / WireGuard / bare protocols within hours; bare protocols and free public nodes die first.
VLESS+Reality is currently the most resilient (disguised as ordinary HTTPS to a real major site), and a stable non-Iranian IP also restores sanctions-geo-blocked sites; but it's not a get-out-of-jail card: IRGFW has graylisted Reality IPs since April 2024, and a heavy-traffic IP can be blocked within ~48h — a dedicated / low-traffic / rotatable node is what actually matters.
The honest boundary: a tunnel changes 'which IP your Mac is online from,' restoring IP-geo-blocked sites, but it can't revive a sanctions-deactivated account or payment (for which blocks are sanctions blocks see 'Sanctioned services in Iran').
Don't use a free VPN: they're mostly the bare protocols DPI identifies most easily, and a free VPN may log and resell your traffic.
During near-total shutdowns or whitelist 'National Information Network' drills, any foreign channel (including a well-configured VLESS) may fail to connect — regardless of whether or how correctly you installed it.
Related reading: the other desktop end is 'installing a VPN on Windows in Iran'; on phones see 'Why you can't install a VPN on an iPhone in Iran' (the App Store catch-22) and 'installing a VPN on Android in Iran' (sideloading); for overall selection see 'Which VPN is more reliable in Iran 2026'.

Follow local law and third-party terms of service; this is a technical tutorial only, security and compliance are the user's own responsibility, and no guarantee can be made about third-party services or changes in regulatory policy.

FAQ

Is installing a VPN easier on a Mac than on an iPhone in Iran?: At the 'install the client' step, a Mac is clearly easier than an iPhone, and the key reason is that a Mac isn't App-Store-locked. The iPhone deadlock in Iran is that the whole App Store is sanctions-blocked by IP and Apple doesn't list VPN apps for Iran, so you hit the 'need a VPN for the App Store, need the App Store for a VPN' catch-22. macOS lets you run clients downloaded straight from official GitHub (Hiddify / sing-box / v2rayU / nekoray) without going through the store, bypassing the removal in one step, and it can use system-level TUN (utun) to capture the whole machine's traffic. The trade-off is macOS has two small quirks: Gatekeeper blocks 'unidentified developer' apps (right-click Open to allow) and you must pick the build by chip (Apple Silicon arm64 / Intel x86_64).
A client I downloaded from GitHub won't open — it says 'cannot verify the developer / unidentified developer.' What now?: That's macOS Gatekeeper blocking an app not notarized by Apple — the client isn't broken. The correct way to allow it when downloaded from an official source is: right-click (or Control-click) the app icon → choose Open → click Open again in the dialog. If newer macOS still blocks the right-click, go to System Settings → Privacy & Security, find the blocked entry near the bottom, and click 'Open Anyway.' Only do this for installers you've confirmed come from official GitHub / official sites; don't allow packages of unknown origin. Also make sure you picked the right chip build (Apple menu → About This Mac to see Apple Silicon vs Intel) — the wrong architecture also won't open.
Will US sanctions stop me from even downloading a client on a Mac?: It can get in the way, but there's usually a path. Because of OFAC sanctions, GitHub has restricted Iranian access to paid features and private repos since 2019 and tightened further after the 2026 escalation, and npm and cloud platforms IP-restrict Iranian users, with about 20% of the world's top domains geo-blocked for Iranian IPs. However, GitHub's public-repo Releases files are usually still downloadable anonymously (what's restricted is mainly login, push, Actions, Copilot — account features), so getting the Hiddify / sing-box / v2rayU installers themselves is mostly still doable. The honest move is: download the installers while you still have any channel to the internet, rather than waiting until you're fully cut off.
I installed the client on my Mac — why does it still fail to connect?: Because Iran's real blocking is at the protocol layer, not at 'can you install it.' Iran's DPI is quite strong by 2026: OpenVPN has been blocked for years, and WireGuard is now reliably identified — a WireGuard connection from a fresh server is often identified within hours, and layering obfuscation buys a little time but the obfuscation layers themselves develop fingerprints that get catalogued. So bare, well-known ordinary protocols (including the plain VMess/SS most free VPNs use) are cut first. To connect reliably in Iran you need a protocol that evades DPI — currently the most resilient is VLESS+Reality (disguising traffic as ordinary HTTPS to a real, major site); but it isn't immune, IRGFW graylists Reality IPs and a heavy-traffic IP can be blocked within ~48h, so a dedicated / rotatable node is what matters.

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This article is for technical education only. Comply with local laws when using network tools. Univista is not liable for how you use the service.