# iPad/iPhone as a second display for Mac by USB #

Yam Display turns your iPad/iPhone into an external monitor for your Mac.

Wired by USB, browse documents or watch videos without delay.

Touch your Mac and pinch to zoom on beautiful retina display.

For multitasking enabled iPads, you can utilize every single pixel of your screen in Split View.

Drag and Drop between iPad and Mac will make the workflow more continuous (Plus feature).

Yam Display is fast, secure, simple and will help you improve your productivity.

Key Features:
- Minimal lag for browsing or video playback
- Energy efficient for static screens
- Retina display
- 60 FPS / 30 FPS
- Split View (iOS 9 or later)
- Pinch to zoom / Rotate / Scroll / Drag
- Touch Bar simulation (for any Mac with macOS Sierra 10.12.2 or later)
- Bluetooth keyboard input from iOS device (including Smart Keyboard for iPad Pro)

Plus Features (In-App Purchase):
- Drag and Drop between iPad and Mac (iOS 11 or later)

System Requirements:
- iOS devices with iOS 7.1 or later
- Macs with macOS 10.9 or later

Download app for Mac from: (free)
For any questions or suggestions:

What’s New

Version 1.5.7

Support iPad Air 3rd Gen and iPad mini 5th Gen.
Automatically hide Home Indicator by default.

Ratings and Reviews

4.1 out of 5
22 Ratings
22 Ratings
Al-the-squirrel ,

Works great; Better than Duet

This app is great. It works just as you'd expect. Not all resolutions are equally responsive, so if you see people complaining about lag, know that tuning resolution can solve this. This lag is just a factor of the hardware limitations of the USB connection, something that will affect all apps like this in the same way.

I've also used Duet display, which is more expensive than Yam, but Yam is much better. Yam has more resolution options, moderately better performance, and support for split-screen multitasking on supported iPads, a great feature that Duet lacks.
If you don't need to use this with windows, I highly suggest Yam over Duet.

Joyalol ,


After trying both YAM and DUET, I finally paid for YAM and is really satisfied with its performance. YAM kick down DUET both in resolution and reliability at least with my 12.9’ iPad Pro, retina is supported and its price is acceptable, subtle lags when scrolling contents is no problem with as I often use external screen for reading static PDFs.

The only problem I have is when I turn on and off YAM several times, the main screen brightness would be changed to the highest level, which is a bit annoying, hope you guys could fixed it.

Anyway, thank you for providing us such a good app, it greatly improves comfort of my work flow!

Dfullerjr89 ,

Doesn’t work on windows

So I downloaded this app because it follow close to duet display and is a little cheaper duet works great on my Windows 10 pc and my MacBook which is great even though they advertise it for Mac. However yam display offers no such windows client and never expressly say it isn’t compatible with windows like all the other display apps do if a windows client is available in the future this app would get 5 stars but I give it one 2 because they don’t communicate in their description it’s Mac only and I’m now out $8

Developer Response ,

Hi, Sorry for the inconvenience and lack of explicit description. We've sent you an email to guide you through the app refund. Thank you.


Yamstu Inc.
4.2 MB

Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Japanese, Korean

Age Rating
Rated 4+
© Yamstu Inc.
In-App Purchases
  1. Drag and Drop Free


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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