The platform matrix
Remio runs as a host (the machine you stream from) and a client (the device you stream to). The matrix below summarises the minimum and recommended specs for each role on each platform. Each platform also gets a deeper section further down the page with notes, permissions, and edge cases.
| SPEC | MACOS HOST | WINDOWS HOST | IOS CLIENT | ANDROID CLIENT |
|---|---|---|---|---|
| Operating system | macOS 15 Sequoia | Windows 10 22H2 | iOS / iPadOS 18 | Android 10 (API 29) |
| Processor | Apple Silicon M1 or Intel Core i5 (8th gen) | x64 with AVX2 | A12 Bionic | ARMv8 with hardware H.264 |
| Memory | 4 GB | 4 GB | 3 GB | 3 GB |
| GPU / media engine | Built-in | Intel UHD 620 / AMD Vega / NVIDIA GTX 1050 | Built-in | Mali-G52 / Adreno 610 |
| Display | 1280 × 800 | 1280 × 720 | Retina iPhone or iPad | 720p |
| Storage for app | ~50 MB | ~70 MB | ~30 MB | ~25 MB |
| Network | 5 Mbps up | 5 Mbps up | 5 Mbps down | 5 Mbps down |
| SPEC | MACOS HOST | WINDOWS HOST | IOS CLIENT | ANDROID CLIENT |
|---|---|---|---|---|
| Operating system | macOS 15.4 or later | Windows 11 23H2 | iOS / iPadOS 18.4 | Android 14 (API 34) |
| Processor | Apple Silicon M2 or later | x64 with AVX2, 8 logical cores | A15 Bionic or M1 | Snapdragon 7 Gen 1 or better |
| Memory | 8 GB | 16 GB | 6 GB | 8 GB |
| GPU / media engine | Apple Silicon media engine | AMD Radeon RX 6600 / NVIDIA RTX 3060 | Apple media engine on A15 or later | Mali-G710 / Adreno 730 |
| Display | Retina, P3 colour | 1080p or 4K | iPad Pro with ProMotion 120 Hz | 1080p 90 Hz or higher |
| Storage for app | ~50 MB | ~70 MB | ~30 MB | ~25 MB |
| Network | 25 Mbps up | 25 Mbps up | 25 Mbps down | 25 Mbps down |
macOS host requirements
The Remio host runs on macOS 15 Sequoia or later. macOS 15 added the version of ScreenCaptureKit Remio uses for low-latency capture, which is why older releases are not supported. Apple Silicon is recommended for the dedicated media engine and lower power draw, but Intel Macs with a discrete GPU still work for 1080p streaming.
Permissions the host needs
On first launch the host asks for two macOS permissions. Both are required for a working session.
- Screen Recording — the host captures the desktop image to send to the client. Without this permission the client sees a black frame.
- Accessibility — the host injects keyboard, mouse, and trackpad input back from the client. Without this permission the client can view but not control.
If the host moves to a different folder later, macOS resets these permissions and prompts again. The fix is in Troubleshooting.
Tested hardware
Remio is tested on every Apple Silicon Mac shipping since 2020 — MacBook Air M1 through M4, MacBook Pro 14-inch and 16-inch M1 Pro through M4 Max, Mac mini M1 through M4 Pro, iMac M1 and M3, Mac Studio, and Mac Pro. The 2018-and-later Intel MacBook Pro and 2019 Mac Pro are also covered.
Windows host requirements
The Windows host runs on Windows 10 version 22H2 or later, and on every release of Windows 11. The host uses DXGI Desktop Duplication for capture and the GPU media engine for hardware H.264 or H.265 encoding. A modern GPU is what makes Windows hosting feel responsive — software encoding works but eats CPU.
GPU encoding paths
- Intel — Quick Sync on UHD 620 or later (8th gen Core and up).
- AMD — VCN on Vega and later, RDNA, RDNA2, RDNA3.
- NVIDIA — NVENC on GTX 1050 and later, including all RTX cards.
If no hardware encoder is available Remio falls back to software H.264, which works on any 4-core CPU at 1080p 30 fps.
iOS and iPadOS client requirements
The iOS client requires iOS 18 or iPadOS 18 or later. It is a universal binary — iPhone, iPad, iPad Pro, iPad Air, and iPad mini all install the same app. The iPad version adds split-view, Stage Manager, external display routing, and full hardware keyboard and trackpad support.
Where it feels best
iPad Pro with the 120 Hz ProMotion display is the smoothest visual target. Paired with a Magic Keyboard and the built-in trackpad it turns into a desktop replacement that streams the Mac you left at home. iPhone and iPad mini also work but expect a smaller working canvas.
Input methods supported
- Touch and multi-touch gestures.
- Apple Pencil for trackpad-style cursor movement and drawing apps.
- External keyboard over Bluetooth, USB-C, or Lightning, including hardware function keys.
- External pointing device over Bluetooth or USB-C, with full button and scroll support.
Android client requirements
The Android client requires Android 10 (API 29) or later. Most devices that shipped after 2020 are covered. Hardware H.264 decode is the practical floor — software decoding works on older phones but burns battery quickly at 1080p.
Tested devices
Remio is validated on the Samsung Galaxy A and S lines from 2022 onward, Google Pixel 6 and later, and OnePlus 9 and later. Tablets including Galaxy Tab S8 and Pixel Tablet are supported with the same binary.
Network and bandwidth notes
Remio uses Remio Stream, a Wi-Fi-aware media path that prefers a direct peer-to-peer connection between the two devices. When both devices are on the same network Remio finds that path within seconds and runs at sub-5 ms latency. Over the public internet the session traverses your home router and the other side's router, with latency that depends mainly on the geographic distance between them.
Wi-Fi recommendations
- Wi-Fi 5 (802.11ac) is the practical minimum. Wi-Fi 6 (802.11ax) and Wi-Fi 6E are noticeably smoother on the 4K profiles.
- 5 GHz band preferred. The 2.4 GHz band has more range but lower throughput and higher jitter.
- Wired ethernet on the host side, if available, removes one source of jitter from the path.
Bandwidth by quality profile
| QUALITY | RESOLUTION AND FPS | MIN BANDWIDTH | RECOMMENDED |
|---|---|---|---|
| Standard | 720p · 30 fps | 2 Mbps | 5 Mbps |
| High | 1080p · 60 fps | 5 Mbps | 10 Mbps |
| Ultra | 4K · 60 fps | 20 Mbps | 40 Mbps |
On the same Wi-Fi network the link between the two devices is the only one that matters — internet upload speed is irrelevant because the video never leaves the LAN. Plan internet bandwidth only for sessions that cross the public network.
Ports and firewall
Remio works behind most home and corporate firewalls without configuration. The connection setup uses one outbound TCP connection to the connection server, and the media path uses outbound UDP to whichever direct or relay path wins the network discovery race.
- Outbound TCP 443 — signaling WebSocket to relay.remio.net.
- Outbound UDP, any high port — peer-to-peer media or TURN relay fallback.
- Local network multicast — proximity pairing on the same Wi-Fi network.
On networks where UDP is fully blocked Remio falls back to a TURN relay over TCP. The session still works; latency adds a few tens of milliseconds depending on the relay region.
Frequently asked
Will Remio run on my older Mac?
If the Mac runs macOS 15 Sequoia, yes. Apple's hardware list for Sequoia is the same list as Remio's host. The 2018 MacBook Pro, 2019 iMac, 2019 Mac Pro, and every Apple Silicon Mac qualify.
Can I stream over cellular?
Yes. A 5G connection feels like Wi-Fi 6 in practice. LTE works at 1080p 30 fps. The cellular session uses the same direct-or-relay path selection — usually a TURN relay because most mobile carriers block inbound UDP.
Does Remio support visionOS?
Yes, as a client. The visionOS app installs from the iPad binary and runs as an immersive client. There is no host on Apple Vision Pro since visionOS does not expose screen capture to apps.
What about multi-monitor hosts?
Multi-monitor capture is supported on macOS 15 and on Windows. The client picks which display to stream from a menu inside the session. Hardware requirements do not change.