(draft, pending Zwift on iOS screenshots to illustrate detailed pairing options)

As of September 2016, the Zwift virtual cycling application was announced to be available on iOS, for early-adopter beta testers. As of the publish date of this KB article, there are a limited number of slots to sign up, but get your name in early, so you can be a part of it!

That being said, Zwift running natively on the iPhone and iPad brings with it some minor challenges for those riders who were previously running Zwift on their desktop PC or Mac machines, namely the lack of support in iOS for the ANT+ protocol; the predominant protocol used by fitness applications and sensors to communicate your ride data back to your PC. 

But have no fear! There are solutions to fix this!

• Supported Devices for Zwift
• Which ANT+ Bridge Do I Need?
• Pairing your ANT+ Devices
• Configuring Zwift on iOS

Supported iOS Devices for Zwift

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There's one caveat: You have to have a supported iOS device to run Zwift on iOS. It won't run on an iPhone 3 or an iPhone 5 for example. Here's a breakdown of the minimum devices needed to support Zwift (requires a 64-bit A7 or newer processor). Supported IOS device list:

• iPhone 7/7 Plus
• iPhone 6/6 Plus/6s/6s Plus
• iPhone SE
• iPhone 5S
• iPad Air (v1 and v2)
• iPad Pro (9.7" and 12.9" models)
• iPad mini (v2, 3 and 4, including Retina models)
• iPod Touch (6th Gen)

If your iOS device is not shown here, it is not supported at this time.

Which ANT+ Bridge Do I Need?

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Many cycling power meters, including the one I use (a Specialized Quarq), supports broadcasting its power data over ANT+ only, no support for Bluetooth Low Energy (also known as BLE or BTLE). So if I were to use Zwift on iOS, I need a way for the application on the iPad, to be able to receive the data from my ANT+ power meter.

Enter the "ANT+ Bridge" revolution!

There are a few devices out there (more are coming!) that will receive your ride data via the ANT+ protocol from your Smart Trainer or Power Meter/sensors, peel back the ANT+ layers and rewrap that data in the BLE protocol to send to the listening Zwift application running on your iPad or iPhone.

To get that running, head over to your favorite fitness retailer (or the defacto, Amazon) and search for the Viiiiva V100 (that's 4 'eyes') heart rate monitor.

Here's a direct link (don't worry, no affiliate links)

https://www.amazon.com/4iiii-Innovations-V100-viiiiva-Monitor/dp/B00BHZQ6OG

Pairing your ANT+ Devices

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This HRM will allow you to pair your ANT+ with the HRM via the mobile app, then it will convert that data to BLE format and send it upstream to Zwift, which is paired to your V100 HRM.

Easey-peasey, right?

You don't even have to use the V100 as an HRM if you wish to use another HRM. Just tap the contacts to "activate" (turn on) the V100, then toss it in your jersey pocket or cycling bag, and continue on your ride as you normally would with your standard HRM (which can be BLE paired to your cycling computer on your bike, or ANT+ paired to the V100 HRM itself).

The only limitation here, is that you can't pair both the V100 HRM and an ANT+ HRM to Zwift, that won't work (unless you're a Klingon, with an 8-chambered heart).

Once your V100 is paired up with Zwift running on the iPad, and your V100 is paired up with your bike or trainer's ANT+ sensors, you're good to go! Zwift will receive the data from the V100 as if all of your equipment was independently speaking BLE.

There is another product called "CABLE" (Connect ANT+ to BLE) from NPE Engineering (makers of the "WASP" ANT+ to WiFi bridge) that will allow you to connect ANT+ devices to BLE.

http://store.npe-inc.com/cable-connect-ant-to-ble/

I have no personal experience with this product, so can't comment on its capability, but I'll get one and backfill this KB article with those details.

Exciting times for Zwift! More to come...

On December 10th of 2016, Zwift released a native version of Zwift for the Apple iOS platform. This adds a new platform to the Zwift ecosystem in addition to the previous PC and Mac platforms. This comes after a healthy beta period filled with many long-time Zwift users.

You can download Zwift for iOS (ZiOS) from iTunes directly, to begin using it on your Apple device. Zwift supports the following iOS devices below. Please note that you need to have a device capable of running iOS 9.0 or later, to start using Zwift.

• iPhone 5s (uses the Apple A7 SoC)
• iPhone 6, iPhone 6 Plus (using the Apple A8 SoC)
• iPhone 6s, iPhone 6s Plus
• iPhone SE (uses the Apple A9 SoC)
• iPhone 7, iPhone 7 Plus (uses the Apple A10 SoC)
• iPad Air, iPad Air Wi-Fi (plus cellular)
• iPad mini 2, iPad mini 2 Wi-Fi (plus cellular)
• iPad Air 2, iPad Air 2 Wi-Fi (plus cellular)
• iPad mini 3, iPad mini 3 Wi-Fi (plus cellular)
• iPad mini 4, iPad mini 4 Wi-Fi (plus cellular)
• 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi (plus cellular)
• 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi (plus cellular)
• ...and iPod touch (6th generation)

These Apple devices each include various chipsets, from the Apple A7 through Apple A9 and newer. Each chipset has different capabilties and performance levels. In addition, each device supports different pixel densities and resolutions. You can find a list of those capabilities and resolutions online if you're interested in all the details.

Zwift running on the iPad will support a 4:3 (standard) resolution, while Zwift on the iPhone will support 16:9 (widescreen) resolution.

If you want the best, richest experience, make sure you're running the latest hardware and latest iOS version on that hardware. The newer devices will support 60fps (Frames per Second), while the older devices will only run Zwift in 30fps. 

You can also connect your iOS device via its Lightning connector directly to an HDTV and get a bigger display to improve your Zwift experience. You can do that by connecting your device to your TV using a Lightning to HDMI or Lightning to VGA adapter. You can find these on Amazon as well as directly from your nearest Apple Store.

You can also "stream" (broadcast wirelessly) your Zwift experience from your mobile iOS device directly to your TV through Apple AirPlay. You would connect your iOS device to your AirPlay device, and then broadcast the game to your TV from there. Follow the Apple Documentation on how to set this up for your iOS device.

Good luck and #RideOn!

Have you lost power? Is your house or pain cave in the dark? Don't despair! You can still ride on Zwift!

All you need are rollers or a manual ("dumb") trainer or a TacX Neo smart trainer. The rollers and manual trainer do not require any additional power other than your legs, and the TacX Neo can be operated without power, it just won't be able to provide the "road feel" or FE-C Zwift-controlled resistance for you.

And you'll need Zwift running on an iOS device that has a data connection, such as an iPhone or iPad connected via a hotspot through your phone.

Why the hotspot? Well, if you've lost power, you've probably lost your DSL/cable/landline Internet access as well.

Just fire up Zwift on iOS (ZiOS), pair it with your sensors and power meter if necessary, and start riding! You won't miss a workout, while your neighbors are struggling to find candles in the dark.

Many thanks go to Robert J. Morzek for idea to write this article